------------------------------------------------------------------------ FDA Consumer magazine (January-February 1997) VOL. 31 NO. 1 ------------------------------------------------------------------------ Features New Ways to Prevent and Treat AIDS Home-use blood collection kits, lab tests that don't require blood, and new drugs are just a few of the new ways of diagnosing and treating HIV infection. Second Skins Artificial skin and new types of wound dressings are among the advances in treating burn patients and others whose skin has been seriously damaged. Overcoming Infertility Distinguishing myth from medical fact is often the first step towards a dearly desired, but elusive, pregnancy. Tests for men and women, drugs, and surgery are some of the modern options that may help solve this age-old problem. Breast Reduction Often Good Medicine Reducing the size of breasts considered overly large from a medical standpoint often means also reducing head, neck and shoulder pain. Such surgery can also make mammography easier and more accurate. Treating Tropical Diseases Americans traveling to certain areas of the globe may contract tropical diseases despite their best efforts to avoid them. Fortunately, effective treatments are available for most of these exotic maladies. ------------------------------------------------------------------------ Departments Updates The latest information on FDA-related issues, gathered from FDA Press Releases, Talk Papers, and other sources. Consumer Forum Letters to the editor of FDA Consumer magazine. Notebook A potpourri of items of interest gathered from the Federal Register and other sources. Investigators' Reports Selected cases illustrating regulatory and administrative actions--such as inspections, recalls, seizures, and court proceedings--by FDA's regional and district offices across the country Summaries of Court Actions Cases involving seizure, criminal and injunction proceedings. ------------------------------------------------------------------------ New Ways to Prevent and Treat AIDS by Mike Kubic Preventing and treating AIDS is one of the Food and Drug Administration's top priorities. A new class of drugs, a home blood test collection kit, an oral diagnostic test, an HIV antigen test, an HIV-1 antigen test for blood supply, and an HIV viral load test are among the most recent in a long line of products FDA has approved to prevent, diagnose and treat infection with HIV, the virus that causes AIDS. HIV Tests The 1992 National Health Interview Survey by the Centers for Disease Control and Prevention found that only 20 percent of people at increased risk for HIV infection--such as intravenous drug users, male homosexuals, and prostitutes--agreed to be tested for HIV. More than twice that many people in the same risk group said they might use a home testing and counseling service if one were available. At the time, however, testing could only be done by a professional. The situation changed when, on May 14, 1996, FDA approved Confide, the first HIV test system with a home-use blood collection kit. A second test kit was approved last July. It is hoped that home testing will make diagnosis easier and more accessible, especially in populations among whom the recent rise in cases of HIV is greatest, such as women, African Americans, and Hispanics. The tests are highly reliable and are designed to protect the user's anonymity. FDA's approval on June 3, 1996, of Orasure Western blot, a laboratory test that does not require a blood sample, is also expected to increase participation in testing for HIV. Instead of pricking a finger--a procedure shunned by many individuals--Orasure uses a treated cotton pad to collect a tissue sample from between the gum and cheek. The sample is tested for antibodies to HIV by a procedure that has been shown to be highly accurate. An earlier version of Orasure used a less reliable method to screen for HIV antibodies, and people who tested positive had to undergo a standard blood test to confirm the presence of the virus. In March 1996, FDA approved the Coulter HIV-1 p24 Antigen Assay, the first blood test to detect antigens rather than antibodies. In screening routinely carried out since the mid-1980s, technicians check donated blood for HIV-1 antibodies by using enzyme-linked immunosorbent assay (ELISA) test kits. Since a small number of ELISA test results are nonspecific or falsely positive, the standard procedure uses a second, more specific test--the Western blot test--to validate the positive results from ELISA testing. The Coulter test, which is used in addition to ELISA, screens blood for antigens--proteins found on the surface of the virus--that are detectable about one week earlier than HIV antibodies. The new test reduces the so-called "window" period, typically up to three months long, during which standard blood tests show no HIV antibodies, even though the donor may be infected. The Amplicor HIV-1 Monitor Test, another new blood test approved last year, enables physicians to predict the risk of HIV disease progression by precisely measuring virus levels in blood. The test, which amplifies copies of genetic material from the virus by using polymerase chain reaction technology, is based on clinical studies showing that higher virus levels can be correlated with increased risk that the disease will progress to AIDS, and AIDS-related infection or death. Condoms Other than abstinence, latex-rubber condoms are the best protection against sexual transmission of HIV. Latex condoms should always be used for oral, anal and vaginal sex in any relationship that isn't mutually monogamous, and if there is any other chance that either partner may be infected. Condom manufacturers in the United States electronically test all condoms for holes and weak spots. In addition, FDA requires manufacturers to use a water test to examine samples from each batch of condoms for leakage. If the test detects a defect rate of more than 4 per 1,000, the entire lot is discarded. The agency also encourages manufacturers to test samples of their products for breakage by using an air burst test in accordance with specifications of the International Standards Organization. Under an FDA proposal, the labeling on latex condoms should state that "this product contains natural rubber latex." FDA has also requested manufacturers to state on the label that "[if] used properly, latex condoms will help reduce the risk of transmission of HIV infection (AIDS) and many other sexually-transmitted diseases." Consumers should make sure the condom package is undamaged, and check each condom for damage as it is unrolled to be used. The condom should not be used if it is gummy or brittle, discolored, or has a hole. Condoms also should not be used after their expiration date or, if they don't have an expiration date, more than five years after the date of manufacture. Only water-based lubricants (for instance, glycerine or K-Y jelly) should be used with latex condoms, because oil-based lubricants such as petroleum jelly weaken natural rubber. For people allergic to latex, FDA has approved several polyurethane condoms, which have been shown in laboratory tests to be comparable to latex condoms as a barrier to sperm and HIV virus. Each package of polyurethane condoms is labeled "For Latex Sensitive Condom Users." Natural membrane (lambskin) condoms, which are useful in preventing pregnancy, are not effective protection against HIV or other sexually transmitted diseases. Although sperm cannot pass through the lambskin material, small microorganisms, including HIV, can penetrate these condoms. One product available for women--the polyurethane Reality Female Condom--provides limited protection against sexually transmitted diseases. FDA requires the labeling of Reality to indicate that "highly effective protection" against STDs is provided if the male partner uses a latex condom for men. Male and female condoms, however, should not be used at the same time because they won't stay in place. Medical and Dental Equipment To protect patients and health-care providers against exposure to potentially contaminated blood and other body liquids, FDA established quality standards for latex and synthetic rubber gloves used during surgery and patient examination. U.S. manufacturers of these products are requested to test samples from each lot to make sure they show no sign of leakage when filled for two minutes with 1,000 milliliters of water, and that they meet the standards of the American Society for Testing and Materials for stress resistance, tensile strength, materials, and dimensions. FDA also tests samples of domestic and imported surgical and patient examination gloves, using the same criteria. FDA has joined CDC and the American Dental Association in urging dentists to autoclave--sterilize by steam under pressure--dental hand pieces and accessories between patients to remove possible contaminants. In addition, FDA requires that all such equipment must be designed to withstand autoclaving, and the labeling must include instructions for the sterilization process. While most dentists are believed to comply with the recommendations for autoclaving, it's a good idea to ask what preventive measures the dentist follows before making an appointment. Blood Transfusion Each year, about 3.6 million Americans receive transfusions of blood products. FDA inspects the more than 3,000 donor centers where blood and blood components are collected and processed, and continuously updates requirements and standards designed to prevent disease transmission through transfusion. Blood collection centers and manufacturers and distributors of blood products are responsible for maintaining five layers of overlapping safeguards. First, potential donors must answer questions about their health and risk factors. Those whose blood may pose a health hazard are encouraged to exclude themselves. A trained and competent health professional then interviews potential donors about their medical histories. Donors can be temporarily excluded from donating blood for such reasons as having a temperature, cold, cough, or sore throat on the day of the donation. Potential donors are permanently excluded from donating blood for reasons including evidence of HIV infection, male homosexual activity since 1977, and a history of intravenous drug abuse or viral hepatitis. Second, blood establishments must keep current a list of deferred donors and check donor names against that list. Third, after donation, the blood is tested for such blood-borne agents as HIV, hepatitis and syphilis. The fourth layer of protection prevents general use of any blood products that have not been thoroughly tested. The fifth layer of protection is FDA's requirement that blood establishments must investigate any breaches of safeguards and correct deficiencies. An error or accident can result from improper testing, incorrectly labeled components, improper interpretation of test results, improper use of equipment or failure to follow the manufacturers' directions for its use, or accepting units from donors who should have been deferred. The system has helped reduce the risk of transfused HIV infection from 1 in 2,500 units of blood in 1985 to 1 in 440,000 to 640,000 units by the end of 1995. Since then, the Coulter test has shortened the typical window period when the HIV virus cannot be detected to less than three months. Health experts expect the use of this test to reduce the risk of transfused HIV infection even further. Human Tissue Transplants In December 1993, FDA issued an interim requirement that potential donors of all human tissues for transplantation--including tendons, bone, skin, and corneas--be tested for HIV-1, HIV-2, and hepatitis B and C viruses, and screened for symptoms of AIDS, hepatitis, and high-risk behaviors such as sex between males and intravenous drug abuse. Imported tissues must be accompanied by records showing that the tissues were similarly screened and tested. If such records are not available, the tissues must be shipped under quarantine. The agency is preparing a final rule and a guideline to ensure uniformity in tissue testing and screening. Drugs In December 1995, a new class of drugs called protease inhibitors was added to the earlier approved class of nucleoside analogs, which included Retrovir (zidovudine, also known as AZT), Videx (didanosine, or ddI), Hivid (zalcitabine, or ddC), Zerit (stavudine, or d4t), and Epivir (lamibudine, or 3TC). The protease inhibitors--Invirase (saquinavir), Norvir (ritonavir), and Crixivan (indinavir)--inhibit replication of HIV in a similar way as nucleoside analogs, but are active at different points in the replication process. Tested alone or in combination with the nucleoside analogs, the three protease inhibitors markedly reduced the viral load and increased the number of CD4 cells, which sharply declines in HIV infection and AIDS. In June 1996, FDA approved Viramune (nevirapine), the first in a new class of drugs called non-nucleoside reverse transcriptase inhibitors. Viramune was approved for use in combination with nucleoside analogs to treat adults with HIV infection who have experienced clinical and/or immunological deterioration. By the end of June, FDA also had approved 22 drugs for HIV- and AIDS-related conditions. Among them are NebuPent (aerosolized pentamidine isethionate) to prevent Pneumocystis carinii pneumonia, the most common life-threatening infection of people with AIDS, and Roferon-A (interferon alfa-2a) and Intron-A (interferon alfa-2b) for Kaposi's sarcoma, an aggressive cancer that affects primarily male homosexuals with AIDS. Nutrition Some patients with HIV have wasting syndrome, with symptoms that include major weight loss, chronic diarrhea or weakness, and constant or intermittent fever for at least 30 days. The syndrome is classified as an AIDS-defining illness. All people with HIV should carefully follow food safety practices, because their weakened immunity leaves them particularly vulnerable to food-borne illness. Diarrhea caused by such illness can lead to or worsen wasting syndrome. To prevent food-borne illnesses, people with HIV should avoid nonpasteurized dairy products, wash hands and utensils with soap and hot water when preparing meals, and cook food thoroughly to kill harmful bacteria. Raw eggs and raw seafood such as oysters, clams, sushi, and sashimi should not be eaten. Additional information about food safety and HIV can be obtained from FDA. Loss of appetite (anorexia) can be treated with two FDA-approved prescription medicines for HIV and AIDS patients. Marinol (dronabinol), a synthetic extract of marijuana, is indicated for anorexia associated with weight loss. Megace (megestrol acetate) can be used for anorexia, cachexia (emaciation), or any unexplained significant weight loss. Unapproved Therapies Recognizing the special needs of people with HIV infection and AIDS, FDA uses its discretion to allow them to import for their personal use unapproved but promising drugs for HIV and HIV-related life-threatening diseases. At the same time, the agency vigorously campaigns against AIDS health scams that have bilked their victims of as much as $ 10 billion a year. As a result of FDA investigations, federal and state authorities have taken legal actions against individuals involved in hundreds of fraudulent cures for AIDS such as "energized" water, "ozone therapy," and hydrogen peroxide "treatment." Because most of the scams are local enterprises, FDA initiated in 1989 an AIDS Health Fraud Task Force Network to monitor and counter the promotion of suspected fraudulent AIDS products. The task forces, so far established in 10 states, have built broadly based coalitions of federal, state and local authorities with the medical community and AIDS activists. They cooperate in explaining to individuals and organizations how to identify fraudulent health products and distribute general information about HIV infection. Mike Kubic is a member of FDA's public affairs staff. ------------------------------------------------------------------------ For More Information To learn more about food safety and HIV, write to FDA (HFE-88), 5600 Fishers Lane Rockville, MD 20857, and ask for the brochure "Eating Defensively--Food Safety Advice for Persons with AIDS." Be sure to include the publication number: (FDA) 92-2232. More information about AIDS and HIV is also available from FDA's Office of AIDS and Special Health Issues on the World Wide Web. ------------------------------------------------------------------------ Second Skins by Carolyn J. Strange Last spring, a 68-year-old Northern California man suffered deep, third-degree burns when he dropped a cigarette and his pants leg caught fire. Unfortunately, such injuries are all too common. What's unusual is that this man became the first patient treated outside clinical trials with a new artificial skin that the Food and Drug Administration had just approved for marketing the month before. A serious burn is one of the most horrendous traumas the body can suffer. Every year, about 51,000 Americans are hospitalized for burn treatment, according to the American Burn Association, and 5,500 die. The good news is that the incidence and severity of burn injuries have declined significantly over the past 20 years. And patient survival keeps improving. "This is a very exciting area," says Charles Durfor, Ph.D., in FDA's division of general and restorative devices. "Thirty to forty years ago, many burn patients didn't live. Advances in treatment have created a whole new patient population that not only lives, but has an improving quality of life." The first great strides were in getting patients through the initial shock, and preventing fluid loss. Controlling infection, a serious threat to burn patients, also improved. Specialized nutritional support has helped. Another leap occurred when doctors began surgically removing, or excising, all burned tissue from the wound as soon as possible. After stabilizing the patient and cleaning out the wound, the next step is to cover it. "The sooner you close the wound, the sooner the patient gets better," says Robert Klein, M.D., medical director of the regional burn center at Children's Hospital Medical Center of Akron, Ohio. "The problem is, we've never had an optimal way to do it," says Jerold Kaplan, M.D., director of the burn centers at Alta Bates Hospital in Berkeley, Calif., and at Children's Hospital in nearby Oakland. The need to cover wounds as quickly as possible while minimizing scarring and additional trauma has driven development of advanced wound dressings and skin substitutes. Kaplan treated the 68-year-old California man's wounds with Integra Artificial Skin Dermal Regeneration Template, from Integra LifeSciences Corp., Plainsboro, N.J. "Integra is a significant addition to the armamentarium of the burn surgeon," Kaplan says, and other surgeons agree. Skin Deep Surgeons also agree that no single product or technique is right for every burn situation. And so far, there's no true replacement for healthy, intact skin, which is the body's largest organ, and one of the most complex. It's the first line of defense against infection and dehydration, but it's more than just a physical barrier. Skin also helps control temperature, through adjustments of blood flow and evaporation of sweat. It's an important sensory organ, too. Skin thickness varies with age and body location, but averages only 1 to 2 millimeters (0.04 to 0.08 inches) thick. Thick or thin, it has two layers. The thin outer epidermis is nourished from the thicker, more sensitive dermis below. The outermost surface is a tough, protective coating of dead, flat cells resembling paving stones. As these cells wear away, they're replaced from beneath. The innermost part of the epidermis consists of rapidly dividing cells, called keratinocytes, which produce keratin, a tough protein. Epidermis also contains a unique fatty substance that makes skin waterproof. The skin's blood vessels, lymph vessels, and nerves are in the dermis. Hair follicles, sweat glands, and oil glands also reside deep in this layer, which is mainly connective tissue. A network of collagen, the most common protein in the body, gives flexibility and structural support to the skin. Fibroblasts are the dominant cell type. Dermis plays a role in preventing wound contraction and scarring. Treatment of burns depends on how deep and extensive they are, and the overall health of the patient. First-degree burns (such as sunburns) affect only the epidermis; they may peel but generally heal quickly. Second-degree burns damage the skin more deeply, causing blisters but sparing some of the dermal layer. Unless they're extensive, these burns usually heal without serious scarring. Third-degree burns destroy the full skin thickness, sometimes exposing muscle or bone, and require specialized treatment and skin grafts to obtain complete wound healing and reduce scarring. Left alone, the body tries to close wounds quickly by contraction, which results in serious scarring that is not only disfiguring, but can also be disabling. Currently, the best wound covering most often is the patient's own skin. Healthy skin from another body site can be transplanted, which is called an autograft (autos means self). Sometimes little slits are cut so the resulting meshed graft can be stretched to cover more area. A split-thickness graft takes only the upper skin layer, and the donor site usually heals within several days. The thinner the graft, the faster the donor site heals. Surgeons may even take additional thin grafts from healed sites. Full-thickness grafts usually give a better-looking final result, but sometimes they don't adhere and survive. Donor sites are limited and autografting isn't always possible. "People with great big burns don't have enough of their own skin, so you have to have some other way of covering them," says David M. Heimbach, M.D., director of the University of Washington Burn Center at Harborview, Seattle. Some patients can't withstand the additional trauma of a donor site wound. Older patients heal slowly and have thinner skin to begin with. And grafting creates another scar. Doctors often use temporary coverings while patients get stronger, or while donor sites heal for additional harvesting. Two traditional possibilities are an allograft (allos means other) of human skin, usually cadaver skin, or a xenograft (xenos means stranger, in this case from another species) of pig skin. Cadaver skin is preferable, but as with other donated organs, sometimes it's in short supply and transmission of infectious agents is a concern. Human skin is regulated under FDA's Human Tissue Program, which requires donor screening for HIV (the AIDS virus) and hepatitis. In any case, the immune system rejects allo- and xenografts in a matter of days or weeks, and they must be removed and replaced. To avoid such problems, researchers and manufacturers are developing better wound dressings. Advanced Dressings DA recognizes two broad categories of wound dressings--interactive and noninteractive. A variety of noninteractive dressings are available for covering first- and second-degree burns and other wounds. An interactive dressing is intended to actively promote wound healing by interacting directly with body tissues. Manufacturers must submit safety and effectiveness data to FDA in a premarket approval application. FDA has approved two interactive wound dressings for use on third-degree burns: Integra Artificial Skin and Original BioBrane (Blue Label), marketed by Dow B. Hickam, Inc., New York. BioBrane is a knitted nylon fabric bonded to an ultra-thin silicone rubber membrane coated with a protein (gelatin) derived from pig tissue. Clotting factors in the wound interact with the gelatin in the dressing, causing it to adhere to the wound within a day or so. The dressing remains in place until autografting becomes possible. Integra is a two-layer membrane--a dermal layer that's a porous lattice of cross-linked collagen fibers, and a synthetic epidermal layer. The dermal layer acts as a biodegradable template that helps organize dermal tissue regeneration. Fibroblasts and other cells migrate into the lattice from surrounding healthy tissue, as do blood and lymph vessels. The fibroblasts degrade the temporary scaffold and recreate their own collagen matrix. "The dermal part of the product is a permanent cover which the body converts into something which looks more like dermis than it looks like scar tissue," Heimbach says. The outer synthetic layer provides the barrier functions of epidermis for two to three weeks; then the surgeon replaces it with a very thin autograft. "The ability to have the donor site be very thin and heal in just a few days is the big benefit," says Kaplan. "You're actually adding a procedure, but the end result is positive." "It's a neat concept and it appears to work," says Heimbach, who has used Integra on more than 100 patients during clinical trials. He says the final results look much better than the alternative, meshed autografts. "We're excited about the new composite skin substitutes," he says. Cultured Skin Doctors prefer a thin graft to a thick one, but eliminating the donor site wound and scar altogether would be even better. That's done by growing the patient's skin in the lab, under special tissue culture conditions. Lab-grown skin products also have other potential uses for wounds other than burns, and for laboratory testing. (See accompanying articles.) From a postage stamp-sized piece of skin, technicians can grow enough skin in about three weeks to nearly cover the body. Some medical centers are equipped for this sort of cell culture, and Genzyme Tissue Repair, Cambridge, Mass., does it as a commercial service. Cultured skin has been available for treating burns for about a decade, and in certain circumstances it can work well. "The problem here is you're putting on epidermis and not dermis," Kaplan says. "Without both parts, you don't really have skin," Heimbach says. "You're grafting on scar tissue and that's not a satisfactory skin covering." Less than 10 cells thick, it's also tricky to handle. "It's like gossamer," Kaplan says. And something has to cover the wound in the meantime. That's where Kaplan and others see a potentially useful combination. The patient's epidermis could be cultured during the two to three weeks while Integra's dermal layer becomes a suitable bed for grafting. "They're complementary," says Kaplan. "You'd have the best of both worlds. You don't have any donor sites, and you have a good, durable, cosmetically acceptable cover," says Heimbach. "Another approach we're actively working on is the one-step procedure," says Frederick Cahn, Ph.D., senior vice president, technology, Integra LifeSciences. The patient's own epidermal cells are isolated, as they would be for culturing, then seeded onto the dermal layer of Integra before it is applied to the wound. Both skin layers regenerate in place simultaneously, and only one surgical procedure is required. This procedure has worked well in animals, but hasn't been tried in humans yet. Although physicians welcome new ways to help their patients, they're leery of "scar in a jar" products that might solve some problems while creating others. Last year, FDA held hearings on using the patient's own cells for structural repair in therapy, and heard a strong call for measures of efficacy. Based on the testimony presented, FDA has decided to regulate such therapy and is developing guidance documents to assist manufacturers in completing the premarket review process. "FDA recognizes that the area of tissue substitutes is a rapidly evolving area--and that medical and biochemical practice are also growing rapidly--and it's working aggressively to make sure it doesn't stifle development while continuing to ensure patient safety," says FDA's Durfor. Investigators have developed other variations on cultured skin in the hope of providing off-the-shelf, living, temporary or permanent dressings. Clinical trials are under way testing them on burns and other wounds. For example, Advanced Tissue Sciences, La Jolla, Calif., developed its Dermagraft-TC skin replacement to be used as an alternative to cadaver skin for burns. Treatment for burns keeps improving, but burn surgeons still have another important concern. "I think 95 percent of the burns we see are completely preventable," says Heimbach. He credits smoke detectors for a huge drop in the number of burns and deaths from house fires, but he hasn't seen much change in the number of accidents caused by carelessness or ignorance. "The answer to the burn problem is prevention. Once it happens, it's too late," Klein says. "Be careful so you never need us." Carolyn J. Strange is a science and medical writer living in Northern California. ------------------------------------------------------------------------ Hope for Wounds That Won't Go Away It may be hard for a healthy person to imagine having a wound that just won't heal, but that problem plagues millions of Americans. Nonhealing wounds not only take an emotional toll, but also leave patients, their families, and society with a serious economic burden, ranging into billions of dollars. The incidence of chronic wounds is far greater than burns and is expected to continue to increase as the population ages. Some of the treatment concerns are similar because the barrier function of skin is lost, putting the patient at risk for infection, and chronic wounds can be life threatening. There are three general types of chronic wounds: pressure ulcers (bedsores or decubitus ulcers), venous ulcers, and diabetic ulcers. They have different causes, but the result is the same--localized tissue death. The factors that cause an ulcer to develop in the first place also interfere with healing. The cost per healed ulcer--when they heal at all--can climb into the tens of thousands of dollars, and as many as half recur within a year. Roughly three-quarters of a million American diabetics suffer with foot ulcers, which are responsible for more than 50,000 amputations a year. Recent research efforts in pursuit of various growth factors to promote wound healing have been disappointing. Figuring out which growth factors to put in a wound--and when and at what dose--is a daunting, perhaps impossible, task. Some investigators have turned to cultured skin, arguing that applying cultured skin to wounds makes more sense than using growth factors because living cells already know how to produce growth factors at the right time and in the right amount. Organogenesis Inc., of Canton, Mass., has developed Apligraf (formerly Graftskin), a two-layer living skin substitute derived from infant foreskins. The upper layer contains keratinocytes, the dominant cell type in the epidermis. The lower layer contains collagen and fibroblasts, the main constituents of dermis. Other cell types that trigger immunological response are absent, and, as a result, this engineered tissue is not rejected. Human trials of Apligraf for treating burns, diabetic ulcers, and for use in other skin surgeries are under way. Cultured skin offers new hope for chronic wounds, but, as with burns, prevention is the best bet. --C.J.S. ------------------------------------------------------------------------ Skin Under Glass In addition to its potential as an advanced wound dressing, cultured skin may also prove useful in laboratory testing. Many cosmetic, household product, pharmaceutical, and petrochemical companies are experimenting with cultured skin in the hope that in vitro (in glass, meaning in lab vessels) assays can replace or reduce animal testing for evaluating raw materials and final product formulations. FDA has long supported development of such methods, but the state of the science hasn't progressed yet to where it can fully replace animal testing, according to FDA's John Bailey, who heads the Office of Cosmetics and Colors in the agency's Center for Food Safety and Applied Nutrition. Scientists can use isolated skin tissue to test skin penetration, irritation, toxicity, and other effects of various substances. Although cadaver skin works for some purposes, its uses are limited because the cells are dead. Cultured skin contains live, metabolizing cells that can better mimic how skin responds to various stimuli. One example is the EpiDerm System, a model of human epidermis marketed by MatTek Corp., Ashland, Mass. Human-derived epidermal cells are grown under culture conditions that encourage formation of the characteristic cell subtypes and layers of epidermis. Another example is Skin2 , developed by Advanced Tissue Sciences, Inc., La Jolla, Calif. Some versions of Skin2 contain dermis as well as epidermis. These products are intended to be used for testing, not as dressings. Lab-grown skin is used in two general ways. As a membrane to measure skin absorption, it doesn't work very well because it's much more permeable than skin, according to Robert L. Bronaugh, Ph.D., chief of the skin absorption and metabolism section in FDA's Office of Cosmetics and Colors. "A lot more work needs to be done before it can be used to simulate accurately the barrier properties of human skin," he says. However, as an alternate test to measure irritation, cultured skin looks encouraging, according to Bronaugh. The U.S. Department of Transportation has approved the use of a Skin2 in vitro test kit as an alternative to animal testing of potentially corrosive materials. Although FDA wouldn't accept final safety data acquired from these in vitro assays, companies can use cultured skin in early screenings, and that saves animals, as well as money. --C.J.S. ------------------------------------------------------------------------ Overcoming Infertility by Tamar Nordenberg Myth or fact: If a couple is having trouble conceiving a child, the man should try wearing loose underwear? That's a fact, according to a study on "Tight-fitting Underwear and Sperm Quality" published June 29, 1996, in the scientific journal The Lancet. Tight-fitting underwear--as well as hot tubs and saunas--is not recommended for men trying to father a child because it may raise testes temperature to a point where it interferes with sperm production. But couples having difficulty getting pregnant can tell you the solution is almost never as simple as wearing boxers instead of briefs. Lisa (who asked that her last name not be used) tried for more than two years to get pregnant without success. "Everyone gave me advice," she says. "My mother said I should just go to church and pray more. My friends said, 'Try to relax and not think about it' or 'You're just overstressed. You work too much.'" Actually, psychological stress is more likely a result of infertility than the cause, according to Resolve, a nonprofit consumer organization specializing in infertility. "Fertility problems are a huge psychological stressor, a huge relationship stressor," says Lisa Rarick, M.D., director of the Food and Drug Administration's division of reproductive and urologic drug products. So, while going on a relaxing vacation may temporarily relieve the stress that comes with fertility problems, a solution may require treatment by a health-care professional. Treatment with drugs such as Clomid or Serophene (both clomiphene citrate) or Pergonal, Humegon or Metrodin (all menotropins) are used in some cases to correct a woman's hormone imbalance. Surgery is sometimes used to repair damaged reproductive organs. And in about 10 percent of cases, less conventional, high-tech options like in vitro fertilization are used. Will the therapies work? "Talking about the success rate for fertility treatments is like saying, 'What's the chance of curing a headache?'" according to Benjamin Younger, M.D., executive director of the American Society for Reproductive Medicine. "It depends on many things, including the cause of the problem and the severity." Overall, Younger says, about half of couples that seek fertility treatment will be able to have babies. A Year Without Pregnancy [diagram illustrating the process of fertilization omitted] Infertility is defined as the inability to conceive a child despite trying for one year. The condition affects about 5.3 million Americans, or 9 percent of the reproductive age population, according to the American Society for Reproductive Medicine. Ironically, the best protection against infertility is to use a condom while you are not trying to get pregnant. Condoms prevent sexually transmitted diseases, a primary cause of infertility. Even a completely healthy couple can't expect to get pregnant at the drop of a hat. Only 20 percent of women who want to conceive become pregnant in the first ovulation cycle they try, according to Younger. To become pregnant, a couple must have intercourse during the woman's fertile time of the month, which is right before and during ovulation. Because it's tough to pinpoint the exact day of ovulation, having intercourse often during the approximate time maximizes the chances of conception. After a year of frequent intercourse without contraception that doesn't result in pregnancy, a couple should go to a health-care professional for an evaluation. In some cases, it makes sense to seek help for fertility problems even before a year is up. A woman over 30 may wish to get an earlier evaluation. "At age 30, a woman begins a slow decline in her ability to get pregnant," says Younger. "The older she gets, the greater her chance of miscarriage, too." But a woman's fertility doesn't take a big drop until around age 40. "A man's age affects fertility to a much smaller degree and 20 or 30 years later than in a woman," Younger says. Despite a decrease in sperm production that begins after age 25, some men remain fertile into their 60s and 70s. A couple may also seek earlier evaluation if: * The woman isn't menstruating regularly, which may indicate an absence of ovulation that would make it impossible for her to conceive without medical help. * The woman has had three or more miscarriages (or the man had a previous partner who had had three or more miscarriages). * The woman or man has had certain infections that sometimes affect fertility (for example, pelvic infection in a woman, or mumps or prostate infection in a man). * The woman or man suspects there may be a fertility problem (if, for example, attempts at pregnancy failed in a previous relationship). The Man or the Woman? Impairment in any step of the intricate process of conception can cause infertility. For a woman to become pregnant, her partner's sperm must be healthy so that at least one can swim into her fallopian tubes. An egg, released by the woman's ovaries, must be in the fallopian tube ready to be fertilized. Next, the fertilized egg, called an embryo, must make its way through an open-ended fallopian tube into the uterus, implant in the uterine lining, and be sustained there while it grows. (See diagram.) It is a myth that infertility is always a "woman's problem." Of the 80 percent of cases with a diagnosed cause, about half are based at least partially on male problems (referred to as male factors)--usually that the man produces no sperm, a condition called azoospermia, or that he produces too few sperm, called oligospermia. Lifestyle can influence the number and quality of a man's sperm. Alcohol and drugs--including marijuana, nicotine, and certain medications--can temporarily reduce sperm quality. Also, environmental toxins, including pesticides and lead, may be to blame for some cases of infertility. The causes of sperm production problems can exist from birth or develop later as a result of severe medical illnesses, including mumps and some sexually transmitted diseases, or from a severe testicle injury, tumor, or other problem. Inability to ejaculate normally can prevent conception, too, and can be caused by many factors, including diabetes, surgery of the prostate gland or urethra, blood pressure medication, or impotence. The other half of explained infertility cases are linked to female problems (called female factors), most commonly ovulation disorders. Without ovulation, eggs are not available for fertilization. Problems with ovulation are signaled by irregular menstrual periods or a lack of periods altogether (called amenorrhea). Simple lifestyle factors--including stress, diet, or athletic training--can affect a woman's hormonal balance. Much less often, a hormonal imbalance can result from a serious medical problem such as a pituitary gland tumor. Other problems can also lead to female infertility. If the fallopian tubes are blocked at one or both ends, the egg can't travel through the tubes into the uterus. Such blockage may result from pelvic inflammatory disease, surgery for an ectopic pregnancy (when the embryo implants in the fallopian tube rather than in the uterus), or other problems, including endometriosis (the abnormal presence of uterine lining cells in other pelvic organs). A medical evaluation may determine whether a couple's infertility is due to these or other causes. If a medical and sexual history doesn't reveal an obvious problem, like improperly timed intercourse or absence of ovulation, specific tests may be needed. Tests for Both The man's evaluation focuses on the number and health of his sperm. The laboratory first examines a sperm sample under a microscope to check sperm number, shape and movement. Further tests may be needed to look for infection, hormonal imbalance, or other problems. Male tests include: * X-ray: If damage to one or both of the vas deferens (the ducts in the male that transport the sperm to the penis) is known or suspected, an x-ray is taken to examine the organs. * Mucus penetrance test: Test of whether the man's sperm are able to swim through a drop of the woman's fertile vaginal mucus on a slide (also used to test the quality of the woman's mucus). * Hamster-egg penetrance assay: Test of whether the man's sperm will penetrate hamster egg cells with their outer cells removed, indicating somewhat their ability to fertilize human eggs. For the woman, the first step in testing is to determine if she is ovulating each month. This can be done by charting changes in morning body temperature, by using an FDA-approved home ovulation test kit (which is available over the counter), or by examining cervical mucus, which undergoes a series of hormone-induced changes throughout the menstrual cycle. Checks of ovulation can also be done in the physician's office with simple blood tests for hormone levels or ultrasound tests of the ovaries. If the woman is ovulating, further testing will need to be done. Common female tests include: * Hysterosalpingogram: An x-ray of the fallopian tubes and uterus after they are injected with dye, to show if the tubes are open and to show the shape of the uterus. * Laparoscopy: An examination of the tubes and other female organs for disease, using a miniature light-transmitting tube called a laparoscope. The tube is inserted into the abdomen through a one-inch incision below the navel, usually while the woman is under general anesthesia. * Endometrial biopsy: An examination of a small shred of uterine lining to see if the monthly changes in the lining are normal. Some tests require participation of both partners. Samples of cervical mucus taken after intercourse can show whether sperm and mucus have properly interacted. Also, a variety of tests can show if the man or woman is forming antibodies that are attacking the sperm. Drugs and Surgery Depending on what the tests turn up, different treatments are recommended. Eighty to 90 percent of infertility cases are treated with drugs or surgery. Therapy with the fertility drug Clomid or with a more potent hormone stimulator--Pergonal, Metrodin or Humegon--is often recommended for women with ovulation problems. The benefits of each drug and the side effects, which can be minor or serious but rare, should be discussed with the doctor. Multiple births occur in 10 to 20 percent of births resulting from fertility drug use. Other drugs, used under very limited circumstances, include Parlodel (bromocriptine mesylate), for women with elevated levels of a hormone called prolactin, and a hormone pump that releases gonadotropins necessary for ovulation. If drugs aren't the answer, surgery may be. Because major surgery is involved, operations to repair damage to the woman's ovaries, fallopian tubes, or uterus are recommended only if there is a good chance of restoring fertility. In the man, one infertility problem often treated surgically is damage to the vas deferens, commonly caused by a sexually transmitted disease, other infection, or vasectomy (male sterilization). Other important tools in the battle against infertility include artificial insemination and the so-called assisted reproductive technologies. (See accompanying article.) Fulfillment Regardless Lisa became pregnant without assisted reproductive technologies, after taking ovulation-promoting medication and undergoing surgery to repair her damaged fallopian tubes. Her daughter is now 4 years old. "It was definitely worth it. I really appreciate having my daughter because of what I went through," she says. But Lisa and her husband won't try to have a second child just yet. "At some point you have to stop trying to have a baby, stop obsessing over what might be an unreachable goal," she says. When having a genetically related baby seems unachievable, a couple may decide to stop treatment and proceed with the rest of their lives. Some may choose to lead an enriched life without children. Others may choose to adopt. And no, according to Resolve, you're not more likely to get pregnant if you adopt a baby. To get more information about infertility, send a self-addressed stamped envelope to: Resolve, 1310 Broadway, Somerville MA 02144-1731, or call their National Helpline at (617) 623-0744. Tamar Nordenberg is a staff writer for FDA Consumer. ------------------------------------------------------------------------ Science and ART Sometimes it may be necessary or preferable to get pregnant without intercourse. A woman may choose to get pregnant with the sperm of someone who is not her partner. In some cases, a woman may not be able to become pregnant with her partner because his sexual problems make it impossible for him to ejaculate normally during sex, or because the sperm have to bypass the vagina if the vaginal mucus cannot support them, or for other reasons. In these cases, through artificial insemination, the semen is placed into the woman's uterus or vaginal canal using a hollow, flexible tube called a catheter. [diagram illustrating the process of in vitro fertilization omitted] New, more complex assisted reproductive technologies, or ART, procedures, including in vitro fertilization (IVF), have been available since the birth 18 years ago of Louise Brown, the world's first "test tube baby." IVF makes it possible to combine sperm and eggs in a laboratory for a baby that is genetically related to one or both partners. IVF is often used when a woman's fallopian tubes are blocked. First, medication is given to stimulate the ovaries to produce multiple eggs. Once mature, the eggs are suctioned from the ovaries (1) and placed in a laboratory culture dish with the man's sperm for fertilization (2). The dish is then placed in an incubator (3). About two days later, three to five embryos are transferred to the woman's uterus (4). If the woman does not become pregnant, she may try again in t he next cycle. Other ART procedures, based on many of the same principles, include: * Gamete intrafallopian transfer, or GIFT: Similar to IVF, but used when the woman has at least one normal fallopian tube. Three to five eggs are placed in the fallopian tube, along with the man's sperm, for fertilization inside the woman's body. * Zygote intrafallopian transfer, or ZIFT (also called tubal embryo transfer): A hybrid of IVF and GIFT. The eggs retrieved from the woman's ovaries are fertilized in the lab and replaced in the fallopian tubes rather than the uterus. * Donor egg IVF: For women who or example, have impaired ovaries or carry a genetic disease that can be transferred to the offspring. Eggs are donated by another healthy woman and fertilized in the lab with the male partner's sperm before being transferred to the female partner's uterus. * Frozen embryos: Excess embryos are frozen, to be thawed in the future if the woman doesn't get pregnant on the first cycle or wants another baby in the future. New treatments for male factors are fast-evolving. Intracytoplasmic sperm injection is one of the most exciting new procedures, according to Benjamin Younger, M.D., executive director of the American Society for Reproductive Medicine. A single egg is injected with a single sperm to produce an embryo that can implant and grow in the uterus. About two-thirds of births from ART procedures are single births. Of the rest, almost all are twins, with about 6 percent resulting in the birth of triplets or more. --T.N. ------------------------------------------------------------------------ Breast Reduction Often Good Medicine by Marilynn Larkin Breast size usually isn't considered an appropriate topic for social conversation. But for a woman suffering the medical and social consequences of having large, pendulous breasts, talking with someone who has undergone breast reduction can be a "life-changing experience," says Mary-Margaret Richardson, a public affairs specialist with the Food and Drug Administration in St. Louis, Mo. Before surgery, Richardson, 53, had adapted to a "lifetime of discomfort--bras that never fit and caused deep grooves in my shoulders, plus neck and back pain, heat rashes under my breasts in the summer, and ever-increasing stooping under the weight of them." After talking with Kellie Feldman, a neighbor who had undergone breast reduction, Richardson decided to have the procedure done herself. "I had gone for a cancer screening several months earlier, and the doctor who did the examination looked at my rutted shoulders and asked whether I had ever thought of having reduction. The seed was planted then," Richardson said. "Then I talked with Kellie, and she was so positive about it." Feldman, 27, is a special education teacher in St. Louis. "Actually, my father had been encouraging me to have the surgery," she says. "I was a bit put off, wondering why he was looking at my breasts. But he said that when I got older, they would look terrible. And I knew I already had deep shoulder indentations from my bra. In addition, the male students in school were always looking and commenting, which made me feel uncomfortable." Margie, 40, an advertising executive in New York City who asked that her last name not be used, had a very different reason for undergoing breast reduction. "I have breast cancer and had a mastectomy on my right breast and then an implant," she says. "My surgeon recommended reduction for the left breast so that it would look more like the right." Medical Concerns Although very different from one another, these women share a mix of medical problems and cosmetic concerns that led them--and thousands of other women across the country--to undergo breast reduction surgery. "I can move my head and neck without pain, my shoulders have healed, and I just feel so much better," says Richardson. "I think about my grandmother, who had this problem all her life and was always stooped in pain. I wish she could have had something like this done then." "Among my patients, I find there are certain age clusters with similar concerns," says George Beraka, M.D., a board-certified plastic and reconstructive surgeon who is assistant professor of surgery at Cornell Medical Center in New York City. "Those in their late teens realize they don't want to live with such large breasts. Women who have finished childbearing and breast-feeding say to themselves, 'Now I'd like to look and feel better.' And older women often are referred by their internists because of neck and back pain." In some women, breast examination and mammography may be easier to perform after reduction. "From the standpoint of the physical exam, it may be more difficult to pick up a very small lesion [lump] in a woman with very large breasts," says Charles Finder, M.D., a radiologist in FDA's Mammography Quality and Radiation Program. "Imaging large breasts for mammography may be a bit more technically demanding, since the technician may have to get each view done twice, or do two images per view." Richardson notes that she "kept getting abnormal mammograms with 'dense tissue' reports that made me think I had breast cancer." She is "looking forward to a normal result this time." But Finder cautions that this may not be the case. "If the breasts are reduced uniformly, then the tissue may still be dense, and she could still have problems with mammography," he says. Contraindications to the procedure "would apply to any major elective surgery," says Beraka. "The woman should not have any significant illness, either physical or mental." Patricia McGuire, M.D., a board-certified plastic and reconstructive surgeon on staff at Parkcrest Surgical in St. Louis, says she prefers not to perform breast reduction on women who are heavy smokers because of a loss of blood supply, or on those with diabetes, since they may not heal well. Also, "if a woman is really overweight, I encourage her to get her weight down first. This is particularly a problem with teens with large breasts, since they may try to gain weight so that their bodies look more balanced," says McGuire, who performed the reductions for Richardson and Feldman. Both physicians believe it is best to wait until a young woman's breasts are fully grown, usually by age 18, before doing a reduction. The procedure is not recommended for women who intend to breast-feed, according to the American Society of Plastic and Reconstructive Surgeons. Breast Cancer Concerns that breast reduction might increase the risk of breast cancer are unfounded, according to Beraka. "There are no data to suggest that women who undergo breast reduction are at greater risk for breast cancer, or that those with a family history of breast cancer should not have the procedure," says Beraka. "In fact, reduction is like a giant biopsy of the breast, because all tissue that is removed during surgery is examined by a pathologist." During 20 years of performing the procedure, Beraka says, malignant tissue was found among his patients "maybe half a dozen times." McGuire, who has been performing reductions for five years, had one patient in whom cancerous tissue was discovered. Preparing for Surgery During the initial consultation, the surgeon explains the surgery in detail, including risks, limitations and scarring, which is an inevitable consequence of the procedure. The surgeon also discusses where the surgery will take place, how long the woman will remain in the facility, any steps that need to be taken preoperatively, and what to expect postoperatively. Any questions a woman has are answered at this time. In preparation for surgery, the woman has a complete physical examination. The surgeon measures the woman's breasts and usually photographs them for reference during surgery and afterwards. These photographs can also serve as documentation for insurance purposes. Unlike a rhinoplasty (nose reduction), in which computer imaging may be used to show a prospective patient what her nose is likely to look like after surgery, the new breast size and shape, as well as positioning of the nipple and areola (the darker skin around the nipple), are usually determined during a discussion between the physician and patient. "Preoperative imaging of any sort is of limited value for this procedure. It's a marketing tool more than anything else," says Beraka. "After assessing the size of the breasts, I ask the patient how much smaller she would like them, taking into consideration what makes sense in terms of the rest of her body. I then estimate how much tissue will need to be removed." Most surgeons provide guidelines for eating, drinking, smoking, taking medication, and other activities before surgery. Generally, the patient should not take aspirin or similar medications for a week or two before surgery, since these medications may lead to increased bleeding. Beraka suggests women take 1,000 milligrams of vitamin C daily to promote healing, but avoid vitamin E supplements, which may also lead to increased bleeding. If a patient smokes, she may be advised to stop. This is always a good idea, but it's especially important when general anesthesia is used, since smoking limits the amount of oxygen the body has available during surgery and recovery. Because the size, shape, and amount of tissue in the breast will change after reduction, most women are advised to have a preoperative mammogram and a postoperative mammogram six months to a year after surgery for comparison. The Surgery Breast reduction is generally done on an inpatient basis. The procedure itself usually takes from two to four hours and requires an overnight stay in the hospital. In most cases, surgery is performed under general anesthesia. Generally, breast reduction involves the removal of fat, glandular tissue, and skin from the breasts; in some cases, the areola may also be reduced. Surgical techniques vary, but according to the American Society of Plastic and Reconstructive Surgeons, "the most common procedure involves an anchor-shaped incision that circles the areola, extends downward, and follows the natural curve of the crease beneath the breast." After removing excess tissue and moving the nipple and areola into their new positions, the surgeon then "brings the skin from both sides of the breast down and around the areola, shaping the new contour of the breast." [three steps in typical breast reduction surgery, graphic omitted] The typical procedure is shown at right: 1.The outlined areas show where skin, breast tissue, and fat are typically removed and how the areola and nipple are repositioned. 2.The arrows show how skin formerly above the nipple is brought down and sutured together to reshape the breast. 3.After surgery, scars will appear around the areola and in the crease under the breast. Liposuction (a procedure in which excess fatty tissue is removed from a specific area of the body by means of a suction device) is sometimes used to remove excess fat from the armpit area, although some surgeons also use this procedure to remove excess fatty tissue from the breast. In some cases, if only fat needs to be removed, liposuction alone may be used to reduce breast size. The fatty tissue is also reviewed by a pathologist. Beraka notes that newer surgical techniques, such as those popularized by Belgian surgeon Madeleine Lejour, can result in significantly less scarring around the undersurface of the breast, making the procedure "less frightening to patients contemplating reduction." However, McGuire says that while the Lejour technique can be appropriate "for specific patients," she does not believe it should be used for everyone. "The scars are shorter, but the surgeon has less control over the shape of the breast," she says. If the type of incision is important to the patient, she should discuss it with the surgeon. Post-Op After surgery, "they wrapped me in a bandage to hold everything in place," Richardson explains. "I was a bit uncomfortable, but I had very little pain. In fact, I never took anything stronger than extra-strength acetaminophen during recuperation." The bandage is removed a couple of days after surgery, after which the woman wears a surgical bra 24 hours a day for about a month. "I could shower--I was up and active and doing things," says Richardson. Nevertheless, she took several weeks off from work to give her body a chance to recover before resuming a full schedule. Like most women who undergo reduction, Richardson was advised not to lift or push anything heavy for three or four weeks. According to the American Society of Plastic and Reconstructive Surgeons, the first menstruation following surgery may cause breasts to swell and hurt, and the woman may also experience shooting pains in her breasts for several months. Patients may be advised to avoid sex for a week or so to avoid arousal that can cause the incisions to swell. "I was relieved that my surgeon has an assistant who answered all my questions during the recovery period, like 'when will my bruises go away?' and 'when can I drive again?'" Richardson notes. Adjusting to Change Like most women who undergo reduction, Mary-Margaret Richardson, Kellie Feldman, and Margie were pleased with the results. "Of all the procedures I do, this one has the highest patient satisfaction, even when the results are less than perfect," Beraka says. "I'm amazed whenever I go shopping. I can buy a dress, not separates with the top four sizes larger. My posture is so much better, and there's no rutting in my shoulders. Most of all, the pain in my neck and back is gone," Richardson says. "I no longer have rashes under my breasts or shoulder indentations," Feldman adds. "Plus, I went on a diet and lost a total of 28 pounds, 7 of which was breast tissue. I feel much healthier." "People ask, 'why did you wait so long?'" Richardson notes. "I tell them that when it began to be debilitating, everything sort of came together. I was scared up until the night before the surgery. But the time was right. I don't regret one minute of it." Marilynn Larkin is a medical writer in New York City. (The illustration was drawn by Renée Gordon based on information provided by the American Society of Plastic and Reconstructive Surgeons.) ------------------------------------------------------------------------ Treating Tropical Diseases by Dixie Farley When adventurer Sandra Levy, 61, of Short Hills, N.J., visited Ecuador and the Galapagos Islands in December 1993, she tried to protect herself against tropical diseases and the insects that transmit them. Before leaving home, Levy got vaccinated against yellow fever and took medicine to ward off malaria. At the headwaters of the Amazon River, she took precautions. Whether trekking into the jungle or canoeing across the river to see leaf-eating ants on the opposite bank, she wore long-sleeved shirts and knee-high boots and used an insect repellent containing DEET. In her thatch hut at night, she slept under mosquito netting. After she returned home, however, Levy noticed a sore the size of a dime above her left ankle. "It didn't hurt or itch," she says, "but it didn't go away. I decided to see my dermatologist." By the end of March, despite antibiotics, her sore had grown to the size of a silver dollar, so she made another medical appointment. "The doctor took a biopsy. Knowing I'd been in Ecuador, he had the lab check for deep fungus and leishmaniasis." The diagnosis was indeed leishmaniasis, a tropical disease spread by infected female sandflies. Levy's doctor put her in touch with a tropical disease specialist for treatment. As Levy's experience shows, travelers' precautions against tropical diseases are not foolproof. "The American public shouldn't be complacent about these diseases," says Randolph Wykoff, M.D., associate commissioner for operations at the Food and Drug Administration. "Tropical diseases are absolutely devastating in other countries, killing hundreds of thousands of people. We are not immune." While most such infections are acquired during travel, Wykoff says, some people can also become infected from other travelers who bring home the disease. Still, tropical diseases are more prevalent in developing countries, where conditions all too commonly foster their spread. War refugees migrating to other areas carry infections with them. Economic and social crises stress health systems. And unsanitary conditions due to rapid urbanization and rapid population growth foster an environment in which insects and other animals can transmit disease-producing organisms. "King" Malaria Sometimes called the King of Diseases, malaria yearly strikes up to 500 million people, 90 percent of them in Africa, with up to 2.7 million deaths, mostly young children. Malaria is caused by four species of Plasmodium parasites, transmitted to humans by infected female Anopheles mosquitoes. Symptoms include a spiking fever, shaking chills, and flu-like symptoms. Anemia or liver problems may develop. If treatment is delayed, severe infection may lead to kidney failure, coma, and death. Malaria kills so many African children because they lack immunity, says tropical disease specialist LTC Alan Magill, M.D., of Walter Reed Army Institute of Research, Department of Defense. Americans in Africa--travelers or troops--also are at risk because their immunity to malaria is like a child's, he says. They have more severe malaria than Africans who have survived past age 5 and developed immunity. "At our study site in Kenya," he says, "if you drew blood from 100 seemingly normal Africans at the local market, you'd find malaria parasites in most of their bloodstreams. They're infected, and the transmission cycle goes on, but they don't have obvious ill effects." The national Centers for Disease Control and Prevention gets about 1,000 reports a year of malaria in the United States. Since 1957, nearly all these cases were acquired in areas of the world where malaria is known to occur. Domestic malaria, in fact, was declared eradicated in this country in the 1940s. But from 1957 through 1994, CDC got 76 reports of malaria cases that may have been transmitted locally, including some from suburban New Jersey in 1991 and New York City in 1993. A 1995 report from Michigan was the first that far north since 1972. "In most cases, evidence indicated that locally infected mosquitoes did transmit the disease," says CDC malaria expert Lawrence Barat, M.D. "Anopheles mosquitoes are present throughout the contiguous United States. But we've never found an infected mosquito in the United States. More recently, we've had outbreaks of Plasmodium falciparum malaria, the more severe form. We want to monitor this very closely." For several decades after the Second World War, the drug of choice for malaria treatment and prevention was chloroquine (Aralen and generics). "The drug was well-tolerated, fast-acting, and cost only 9 cents to cure a child," says Robert Gwadz, Ph.D., assistant chief, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases (NIAID). However, in the 1950s, he says, resistance to chloroquine in falciparum malaria appeared in South America and Southeast Asia and spread throughout both continents and eventually into Africa. "Chloroquine is now useless in most malarious areas." FDA has since approved numerous anti-malaria drugs. Many are not marketed here or are used here only for indications other than malaria. Chloroquine remains the treatment of choice for patients with malaria caused by species still susceptible to the drug. Resistance to chloroquine is becoming more common, however, and alternative drugs are necessary. In the United States, Barat says, oral quinine given together with either tetracycline or sulfadoxine-pyrimethamine (Fansidar) is the best regimen for treatment of mild to moderate falciparum malaria acquired in areas where resistance to chloroquine has been identified. For patients with complicated malaria who are too ill to take oral medicine, intravenous quinidine is used in the United States. Mefloquine (Lariam) and halofantrine (Halfan) are also used to treat chloroquine-resistant falciparum malaria. H alofantrine is not currently marketed here. Intravenous quinine is used in other countries. The incidence of malaria continues to increase, Gwadz says, "in part due to the spread of resistance to chloroquine and several of its substitutes, but also to reduced effectiveness and acceptability of mosquito-killing insecticides." In 1995, the World Health Organization established a system to monitor the drug resistance in Southeast Asia and the Western Pacific. The parasite can be difficult to treat because it can change form to escape the human immune system, says Neil Goldman, Ph.D., associate director for research at FDA's Center for Biologics Evaluation and Research. Goldman says scientists at the center's Laboratory of Parasitic Biology and Biochemistry conduct research "to learn how this process takes place and figure out how to interrupt it. If we make a break in the circle, maybe we can stop infection." Gwadz and colleagues are studying how to give mosquitoes a beneficial gene that prevents transmission of the parasite. To learn more about mosquito biology, they collaborate with scientists at West Africa's National School of Medicine and Pharmacy, in Mali. NIAID scientists also are conducting the first human trial of a vaccine to block transmission of malaria parasites from infected people. More from Mosquitoes: Dengue Fever, Yellow Fever Aedes mosquitoes, mainly A. aegypti, an urban-dwelling insect, can transmit four types of dengue viruses, causing about 20 million cases of disease in more than 100 countries each year. A. aegypti mosquitoes tend to bite in the daytime, especially just after dawn and just before dark. Dengue fever begins suddenly with high fever, severe frontal headache, joint and muscle pain, and sometimes vomiting and rash. Patients usually recover without complications. More serious, dengue hemorrhagic fever can lead to shock, bleeding and death. There is no specific treatment. Symptoms can be treated with bed rest, intravenous fluids, and drugs to reduce fever. In 1995, the worst dengue epidemic in 15 years hit Latin America and the Caribbean. Worldwide, the more than 600,000 cases of hemorrhagic fever caused 24,000 deaths. CDC in 1995 diagnosed dengue fever in 86 U.S. travelers, up from 46 during 1993-1994 and 17 in 1992. A. aegypti mosquitoes also spread the yellow fever virus. Peru in 1995 had the biggest yellow fever epidemic in the Americas since 1950. West Africa also experienced an epidemic that year. Mild yellow fever causes flu-like symptoms. Severe cases may involve bleeding and liver problems, sometimes leading to delirium, convulsions, coma, and death. Treatment is symptomatic. Prevention consists of vaccination and personal protection against mosquitoes. Yellow fever vaccine must be approved by WHO and given at approved vaccination centers. The Pan American Health Organization (PAHO) helped in the vaccination campaign that controlled the Peru epidemic. PAHO is the regional WHO office for the Americas. Elephantiasis and River Blindness Worms related to the heartworms that can hurt dogs, can give humans lymphatic filariasis, a disease affecting about 120 million people worldwide. Infected female Aedes, Anopheles, and various other mosquitoes deposit the worm larvae while biting. The adult worm can damage the lymph system, resulting in elephantiasis--disfiguring swelling in the legs, arms, and other areas. FDA has approved diethylcarbamazine (Hetrazan) for treatment. Surgery may be needed if certain areas, such as the scrotum, are affected. River blindness (onchocerciasis) is caused by pre-larval and adult stages of Onchocerca volvulus, a filarial parasite transmitted by female black flies. Living near rapidly flowing rivers and streams, black flies bite by day. Most of the 17.6 million people who have onchocerciasis are in Africa, though the disease is common in certain areas of Central America as well. Short-term travelers appear to be at low risk for infection, which is usually found in Americans only when they stay in these areas a long time in roles such as missionaries, field scientists, and Peace Corps volunteers. Symptoms include an extremely itchy rash, lumps under the skin, and eye inflammation that can lead to blindness. Ivermectin kills the parasite at the stage when it causes symptoms. Merck, Sharp & Dohme provides this drug free to countries where river blindness is common. It is available here from CDC under an agreement with FDA. According to John Becher, one of two pharmacists who oversee the drug service, "We provide certain drugs and biologics as a public health service. Most are for rare diseases." Ivermectin and other drugs for tropical diseases available through the service are not approved in the United States but are provided under investigational drug exemptions granted by FDA. NIAID's Laboratory of Parasitic Diseases conducts research toward vaccines for elephantiasis and river blindness. While nearly everyone exposed becomes infected, a few individuals are resistant, says Thomas Nutman, M.D., who heads one immunology section. "These resistant individuals have antibodies in their blood that are specific to certain important parasite proteins. We identify the proteins, clone them, manufacture enough so we can study them, and then test them." Testing is in test tubes instead of in animals, which don't take the infection as humans do. Flatworms, Snails and Schistosomiasis Flatworms cause schistosomiasis. First-stage larvae infect freshwater snails, then evolve into cercariae larvae, which exit the snails and swim along to find a human host. Penetrating the skin, male and female cercariae move in the bloodstream to the intestines or bladder and mate. Eggs excreted in human waste end up in the water supply, restarting the cycle. About 200 million people worldwide are infected. Severe disease leads to about 200,000 deaths each year. Most symptoms are due not to the worms, but to eggs trapped in tissue. Short-term infection may be symptomless or cause such symptoms as fever, itchy rash, headache, joint and muscle pain, diarrhea, and nausea. Chronic infection can damage the liver, kidneys and bladder, or intestines. FDA has approved praziquantel (Biltricide) as treatment. Places where schistosomiasis is most prevalent include Brazil, Puerto Rico, and St. Lucia (an island in the East West Indies); Egypt and most of sub-Saharan Africa; and Southern China, the Philippines, and Southeast Asia, according to CDC. At greatest risk are people who wade, swim or bathe in fresh water in rural areas where sanitation is poor and snail hosts are present. Travelers to such areas should not swim in fresh water; salt water like the ocean and chlorinated pools are considered low risk. Bathing water should be heated to 50 degrees Celsius (122 degrees Fahrenheit) or treated with iodine or chlorine, as for drinking. Filtering water with paper coffee filters may remove the parasites. If these methods are impossible, CDC recommends that travelers let bathing water stand three days; cercariae rarely live longer than 48 hours. WHO-led researchers are planning to test a vaccine in humans. Trypanosoma Diseases: Sleeping Sickness, Chagas' Disease The parasites Trypanosoma brucei gambiense and T. brucei rhodesiense cause African sleeping sickness. About 20,000 cases worldwide are reported yearly. Infected tsetse flies, which bite during the day, transmit this extremely serious disease. East Africa's sleeping sickness, due to T. brucei rhodesiense infection, causes symptoms within days to weeks. West Africa's chronic gambiense variety may not cause the "sleeping" part of the illness until months to years after exposure. Symptoms include fever, headache, lethargy, and confusion, which may progress to convulsions, coma and death. Suramin, available from CDC, is for the early stages of both gambiense and rhodesiense sleeping sickness. Melarsoprol, an arsenic derivative, is also available from CDC to treat final stages of both varieties. If the patient is known to have gambiense, however, the drug eflornithine (Ornidyl), approved by FDA, is more effective and safe because melarsoprol can cause serious, even fatal, nervous system problems in some patients. Eflornithine is useful for both early and late stages of gambiense sleeping sickness; it is not effective for rhodesiense sickness. Trypanosoma cruzi causes Chagas' disease, which affects at least 16 million people in Central and South America. The parasite infects reduviid bugs. When the bugs defecate, they deposit the parasite, which can enter a human through a break in the skin or through a mucous membrane, such as that which lines the nose, mouth or eyes. The best prevention is to avoid potential reduviid habitats--mud, adobe and thatch buildings, especially those with cracks or crevices. If this isn't feasible, spraying infested areas and using bed nets can help prevent infection. In its short-term stage, Chagas' disease may cause no symptoms or may cause fever, swollen lymph nodes, and inflammation of the heart or, rarely, the brain. Deaths occur, mainly in children, but most patients survive, their symptoms usually disappearing after four to six weeks. Many years later, about a fourth of patients develop serious, sometimes fatal, heart infection or damaged digestive organs such as an enlarged esophagus or colon for the long term. Nifurtimox is available from CDC for the treatment of short-term Chagas' disease. There is no accepted anti-parasitic treatment for chronic illness. About 70 percent of cases occur in Argentina, Bolivia, Brazil, Chile, Paraguay, and Uruguay. In 1991, the health ministers of those six countries began a program to eliminate Chagas' disease by the end of this century. Since then, house infestation has declined 75 to 98 percent in some areas, PAHO reports. The Leishmaniases Sandra Levy is one of an estimated 12 million people worldwide with leishmaniasis. This group of diseases is spread through the bite of female sandflies infected with any of about 20 different species of Leishmania parasites. Levy had cutaneous leishmaniasis, which causes skin sores that may leave ugly scars. Mucocutaneous leishmaniasis can cause disfiguring destruction of membranes in the nose, mouth, or upper throat (pharynx). In visceral leishmaniasis, parasites invade internal organs, causing death if the symptoms are untreated. According to the Defense Department's Magill, "You have chronic fever, depression of bone marrow and blood cells, weight loss, and a huge spleen so full of parasites it comes down into the pelvis." Years may pass before symptoms appear. Recently, 32 Persian Gulf War veterans were identified as leishmaniasis victims, 12 with viscerotropic leishmaniasis, a chronic syndrome associated with the infection, Magill says. They had fever and vague flu-like symptoms, but few signs of overt disease, he says. "Some had lymph-node enlargement that tended to come and go. A couple had slightly enlarged spleens." A free clinical evaluation program has been set up to identify and treat all veterans infected with leishmaniasis. (See "Want More Information?") The only current way to confirm a leishmaniasis diagnosis is by finding parasites in a clinical specimen. FDA is evaluating a skin test developed by the Defense Department for mass screening of troops. Preventive measures are staying indoors from dusk to dawn and using bed nets with 18 or more holes per inch--sandflies are a third the size of mosquitoes. Treatment of choice is with injectable drugs containing pentavalent antimony, a potentially toxic metal. "Drugs in this class remain unapproved by FDA, and no manufacturer has applied for approval," says Andrea Meyerhoff, M.D., an infectious disease specialist with the agency. Levy took one such drug, sodium stibogluconate, available on a patient by patient basis from CDC. Through home care, Levy had an intravenous dose each day for 20 days. Although she had a reaction that she describes as "the worst scenario of flu symptoms," Levy urges those who get leishmaniasis, "Don't think, 'Oh, I'll knock it off.' Go on that medication if it's what your doctor ordered. It isn't worth taking a chance." In 1994, FDA designated aminosidine, an antibiotic that does not contain antimony, as an orphan drug for visceral leishmaniasis, and a sponsor is working to develop it. Goldman and colleagues are studying new ways to make a leishmaniasis vaccine. "We're trying to skew the immune response," he says, "so it gives a protective reaction to the infection." Richard Kenney, M.D., a colleague, says, "Past efforts clearly show the need for a better understanding of the immune response to the parasite." Toward this end, Kenney and Shyam Sundar, of the Institute of Medical Sciences, Banaras Hindu University, India, collaborate on studies of the immune response at various stages of infection and treatment. The Global Fight Continues WHO Director-General Hiroshi Nakajima, M.D., Ph.D., in his message in the WHO 1996 report, writes that many diseases, including Chagas' disease and river blindness, "sooner rather than later ... will join smallpox as diseases of the past." But he also writes that the world is "on the brink of a global crisis in infectious diseases," requiring "a global response ... that goes beyond selfish interests and national boundaries." Responses by WHO include development of a network of laboratories to strengthen collaboration in detecting and controlling outbreaks. WHO teams can be on site within 24 hours with supplies and equipment to set up epidemic control measures. The Clinton administration last June established a Presidential Decision Directive on Emerging Infectious Diseases, including tropical disease, to improve U.S. and international disease surveillance and prevention and response measures. Meanwhile, international travelers can find health advice in CDC's annually updated handbook, Health Information for International Travel. As for Levy, her globetrotting has cooled. "My jungle trips are over," she says. Her latest trip, last August, was to Iceland. Dixie Farley is a staff writer for FDA Consumer. Lenore Gelb, a press officer in the Office of Public Affairs, also contributed to this article. ------------------------------------------------------------------------ Prevention Tips Personal protection measures are the first line of defense against tropical diseases. The national Centers for Disease Control and Prevention advises that international travelers take these steps to avoid bites from bugs carrying infective organisms: * At least six weeks before departure, get current health information from CDC on regions you plan to visit. (See "Want More Information?") Other sources may be your health department, doctor, or travel agency. * Avoiding rural areas when possible may keep you away from some disease-causing vectors. * When outdoors, wear a hat, long-sleeved shirt tight at the wrists and tucked in at the waist, long pants tight at the ankles and tucked into socks, and shoes covering the whole foot. * On clothing, use a repellent containing permethrin. (Apply it before wearing the clothing, and let the clothing thoroughly dry before wearing, the Environmental Protection Agency advises.) * On skin, use a repellent containing DEET, no higher than 30 percent concentration. Follow instructions carefully. There have been associated rare cases of toxicity, including deaths. * When accommodations are inadequately screened or air-conditioned, use a bed net sprayed with permethrin repellent and tucked under the mattress. If in an area where Leishmania-infected sandflies are likely present, use a bed net with 18 or more holes per inch. * Spray screens with permethrin. * Use aerosol insecticides to clear rooms of insects. Follow instructions carefully. --D.F. ------------------------------------------------------------------------ Want More Information? * For health information for international travel, contact CDC's Voice or Fax Information Service at (404) 332-4559; World Wide Web site at http://www.cdc.gov/; or File Transfer Protocol server at ftp.cdc.gov. * Doctors can apply for compassionate use of investigational drugs for tropical diseases through the CDC Drug Service by calling (404) 639-3670. * The World Health Report 1996 is available on the World Health Organization's World Wide Web site at http://www.who.ch/. * Veterans with health-care concerns for themselves, spouses or children can call the Department of Defense Persian Gulf Veterans Medical Hotline (1-800) 796-9699 or Department of Veterans Affairs at (1-800) 749-8387. More details are at VA's electronic bulletin board, (1-800) 871-8387; World Wide Web site, http://www.va.gov/health/environ/persgulf.htm; and File Transfer Protocol/Telnet server, vaonline.va.gov. --D.F. ------------------------------------------------------------------------ Updates Significant Devices Approved Faster Faster reviews, significant new products approved, and streamlined operations highlight FDA's medical device evaluation in fiscal year 1996. FDA cleared for marketing 4,501 medical devices that were similar to existing products. This category, called "510(k)" for the section of the rule governing such devices, covers about 98 percent of all devices sold in the United States. Average review time was 110 days, down from 137 days in fiscal year 1995 and the peak average of 184 days in fiscal year 1994. In the first three quarters of fiscal year 1996, FDA made decisions on 93 percent of reviews in 90 days or less, compared with 81 percent in fiscal year 1995. FDA approved 43 premarket approval applications (PMAs) in fiscal year 1996, 16 more than in fiscal year 1995. Half of these devices are new technologies for diagnosis and treatment. By contrast, products like contact lenses, lens care solutions, intraocular lenses, and sutures made up the bulk of the approvals in the years leading up to 1990. Along with other streamlining, earlier and more frequent communication with manufacturers at the clinical study stage enabled this progress. The agency reviewed eight PMAs in a year or less in fiscal year 1996. Average review time was 568 days, down from 606 days in fiscal year 1995. Key PMA approvals in fiscal year 1996 include: * the first blood test to monitor patients for possible breast cancer recurrence * new use of ultrasound to help doctors decide if a breast biopsy is needed when a lump is found * a spinal fusion implant, the first of its kind, to treat degenerative disc disease * a fiber-optic bronchial device that uses blue-light wavelengths to detect abnormal lung tissue * an automated Pap smear scanner to help laboratories detect cervical cancer more reliably * a system to remove harmful cholesterol from the blood in people who have a genetic disorder of extremely high cholesterol levels and are at very high risk of heart attack early in life * a microwave device to treat symptoms of enlarged prostate * the first permanent implant to relieve urinary obstruction in men * two lasers that use breakthrough technology to treat nearsightedness * a product to help stop urine leakage in women with urinary incontinence. Agency changes in fiscal year 1996 to speed and otherwise improve review include: * Third-party review--This pilot program allows third-party review of certain 510(k) devices to test whether private evaluation will save time. So far, seven organizations qualify to review. * Exemption of 125 types of low- and medium-risk devices from premarket notification--This frees FDA time for review of more critical, life-saving products. * Orphan device program--The program fosters development of devices for rare, or "orphan," diseases--those affecting fewer than 4,000 people annually. It does not require extensive clinical studies to establish effectiveness, provided manufacturers show their products are safe and have a probable benefit. * Faster review of applications for exemption to study investigational devices--More than 70 percent of these applications were approved within 30 days. * Fewer overdue PMA supplements--Only 17, down from 49 in fiscal year 1995 and the peak of 173 in fiscal year 1993. * Testing faster review of PMA supplements--Pilot-testing of "real time" (two weeks or less) review of PMA supplements reduced some times to only five days. * Testing fewer inspection requirements--FDA pilot-tested a program to reduce inspection requirements when manufacturers of new, investigational devices change manufacturing sites. New Drug Approved for Interstitial Cystitis The first oral medication to relieve the pain and discomfort of interstitial cystitis (IC), an inflammatory disease of the bladder wall, has been approved by FDA. The agency approved the drug, Elmiron (pentosan polysulfate sodium), last Sept. 26 under its orphan products program, which encourages development of treatments for rare diseases. About 450,000 people in the United States are believed to have IC. But true numbers are hard to come by, because many cases are either undiagnosed or misdiagnosed. While most cases are in women, at least 10 percent of cases are in men. No one knows what causes IC. Although bacteria, fungi or viruses are not found in patients' urine, many researchers believe the cause may be an infectious agent that hasn't yet been identified. Another theory holds that the inner lining that protects the bladder wall from toxic effects of urine may be "leaky," allowing substances in the urine to penetrate the wall and trigger IC symptoms. In clinical studies, at least 38 percent of IC patients responded to treatment with the new drug. How Elmiron relieves the bladder pain associated with IC is not known, but the hypothesis is that the drug improves the bladder's defective lining. Some patients see results in weeks. A few patients may take as long as six months before getting relief. If pain is not relieved in six months, the benefits of continuing treatment are unknown. Elmiron is a weak blood thinner; therefore, patients should tell their doctors if they are taking other drugs with a similar effect, such as anticoagulants, or high doses of aspirin or other anti-inflammatory drugs, such as ibuprofen. A package insert for patients includes information on side effects, how to take the drug, and who should take it. IC symptoms are similar to those of a urinary tract infection. Most people have some of the following symptoms: * urgent need for frequent urination both day and night * reduced bladder capacity * feelings of pressure, pain and tenderness around the bladder, pelvic and genital area, which may increase as the bladder fills and decrease as it empties * painful sexual intercourse * in men, discomfort or pain in the prostatic area. Elmiron is marketed by Baker Norton Pharmaceuticals Inc., Miami, Fla. At FDA's request, the firm will conduct postmarketing studies. (For more information, see "Interstitial Cystitis: Progress Against Disabling Bladder Condition" in the November 1995 FDA Consumer.) Breath Test for Ulcer Bacterium A simple, new breath test--the first of its kind cleared by FDA--is as good as biopsy in detecting the bacterium associated with the development of peptic ulcers in people who have developed such ulcers. The Meretek UBT Breath Test Collection Kit accurately detects H. pylori bacterium, a common bacterium thought to infect the stomachs of 35 percent of American adults, about 10 percent of whom develop peptic ulcers. The test is administered in doctors' offices. Previously, the only accurate way to diagnose H. pylori infection was by endoscopy with stomach biopsy. In this procedure, the patient is sedated, and a tube is inserted into the mouth and down into the stomach, where a sample of stomach lining is removed for analysis. Blood tests also have been used to detect H. pylori, but with less dependable results. With the breath test, the patient drinks a new nonradioactive diagnostic drug solution and then exhales into the collection kit--all within about 30 minutes. The solution contains the drug Pranactin, which determines the presence or absence of active H. pylori infection. The collection kit is sent to the product's manufacturer, Meretek Diagnostics Inc., of Nashville, Tenn., and results are available within two days. In studies of 499 U.S. and Canadian patients with duodenal ulcer, the breath test detected H. pylori in 95 percent of cases confirmed by biopsy. FDA cleared the test for marketing Sept. 17, 1996. (See also "Surprise Cause of Gastritis Revolutionizes Ulcer Treatment" in the December 1994 FDA Consumer.) Mammography Info on Internet Women can now turn to FDA's web site on the Internet to find the nearest certified mammography facility. Facilities are listed by state and include the name, address, and phone number. FDA updates the list periodically to reflect the most up-to-date information. High-quality mammography is currently the most effective technique for early detection of breast cancer. Because of concerns about variations in mammography quality, Congress passed the Mammography Quality Standards Act in 1992, requiring certification and annual inspection of mammography facilities. To be certified, facilities must meet quality standards for x-ray images, equipment and personnel. (See "Mammography Facilities Must Meet Quality Standards" in the March 1994 FDA Consumer.) Antimicrobial Drugs Related to Tendon Problems At FDA's request, makers of fluoroquinolone antimicrobial drugs are adding warnings to the package inserts about possible tendinitis and tendon rupture. Fluoroquinolones are used to treat bladder, respiratory and other infections. Under the precautions section in the inserts, the following information for patients is being added: "Patients should be advised to discontinue treatment and inform their physician if they experience pain, inflammation, or rupture of a tendon, and to rest and refrain from exercise." Another warning will alert doctors to the risk. It states that ruptures of the shoulder, hand, and Achilles tendons have been reported and that they r equired surgery or led to prolonged disability. The affected drugs include Cipro (ciprofloxacin), Penetrex (enoxacin), Maxaquin (lomefloxacin), Noroxin (norloxacin), and Floxin (ofloxacin). Tendon rupture can occur during or after therapy with the drugs. New Law for Animal Drugs A new law that lends flexibility to the way FDA regulates animal drugs and medicated feeds is designed to increase the number of animal drugs without compromising the agency's mission to protect the public health. The Animal Drug Availability Act (H.R. 2508), supported by FDA's Center for Veterinary Medicine and animal industry groups, amends the Federal Food, Drug, and Cosmetic Act to: * Allow for more flexibility in studies required to show a new animal drug's effectiveness. * Provide for greater interaction between drug sponsors and FDA during drug development. The law requires a presubmission conference to ensure a common understanding about the data needed to establish safety and effectiveness and the types of studies needed to provide the data. * Create a new category of drugs, Veterinary Feeds Directive Drugs, that allows approval and use of sophisticated new animal drugs in feed, we incorporating safeguards to ensure the drugs' safe use. * Provide for flexible labeling that permits a range of acceptable or recommended doses on animal drug labeling, rather than one optimum dose. The new law also directs FDA to propose other changes that would, for example, broaden the approval process to make more animal drugs available to treat minor species. President Clinton signed the law Oct. 9, 1996. Free Pubs An FDA Consumer reprint about health information on the Internet and a low-literacy brochure in Spanish about choosing medical treatments are available free from FDA. Their titles and publication numbers are: * Health Information On-Line (FDA) 96-1253 * Sea Cuidadoso Al Escoger Los Tratamientos Medicos (FDA) 96-1248S. To order single copies, write to FDA, HFE-88, Rockville, MD 20857. To order 2 to 100 copies, write to FDA, HFI-40, at the same address, or fax your order to (301) 443-9057. Include the publication number. ------------------------------------------------------------------------ Consumer Forum Oral Rehydration for Children This letter pertains to an article entitled "Preventing Dehydration in Children" that was printed in the July-August 1996 FDA Consumer. The article provided an informative discussion of the benefits of oral rehydration therapy (ORT) in the management of diarrhea in children. However, the following statement included in the article on page 22 inaccurately conveyed that oral rehydration fluids are provided by the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC): "To help with that expense, the federally funded and state-administered WIC Program pays for ORT along with certain foods for pregnant women, new mothers, and children under 5." WIC-eligible formulas issued to program participants include products classified by FDA as infant formulas and exempt infant foods. The Food and Consumer Service (FCS), Department of Agriculture (USDA), also recognizes as WIC-eligible formulas enteral medical foods that are formulated to provide nutrition support for individuals with a diagnosed medical condition, when the use of conventional foods is not possible, inappropriate or inadequate. A WIC-eligible formula may be either nutritionally complete or incomplete, but it must serve the purpose of a food, provide a source of calories and one or more nutrients, and be intended for enteral digestion via an oral and/or tube feeding. All WIC-eligible exempt infant formulas and medical foods must be prescribed by a medical authority for a documented and warranted nutritional need. As stated in the subject article, ORT fluids (e.g., Pedialyte, Infalyte, Naturalyte, and Rehydralyte) are intended for very short-term use primarily with infants or children to replace water and electrolytes lost during severe bouts of vomiting and diarrhea. An ORT fluid does not serve the same purpose as a food; therefore, it is not a WIC-eligible formula. In addition, an ORT fluid does not meet the definition of any of the other WIC foods. FCS administers the WIC Program at the federal level. Any questions about the WIC eligibility of ORT fluids can be directed to my division under FCS at the address cited below: Stanley C. Garnett, director Supplemental Food Programs Division Food and Consumer Service U.S. Department of Agriculture 3101 Park Center Drive, Room 540 Alexandria, VA 22302-1500 ------------------------------------------------------------------------ Notebook The Notebook: a potpourri of items of interest gathered from FDA news releases, other news sources, and the Federal Register (designated FR, with date of publication). The Federal Register is available in many public libraries. It is also available electronically through GPO Access at the Government Printing Office. Over-the-counter drug products containing silver-based ingredients are not generally recognized as safe and are misbranded, according to an FDA proposed rule. Many of these products are marketed for treating serious diseases such as AIDS, cancer, tuberculosis, and malaria. But the agency is not aware of scientific evidence that supports silver-based ingredients as disease treatment. Written comments on the proposed rule must be submitted by Jan. 13, 1997, to the Dockets Management Branch (HFA-305), FDA, Roo m 1-23, 12420 Parklawn Drive, Rockville, MD 20857. (FR Oct. 15) A report on conjugated estrogens, used for estrogen replacement in women, is available free from FDA. The agency recently sought public comment on its preliminary analysis of the Premarin brand of conjugated estrogens to help decide which components should be included in the generic version of Premarin. "Preliminary Analysis of Scientific Data on the Composition of Conjugated Estrogens" (a 692k PDF file) is available on the World Wide Web at http://www.fda.gov/cder/; the document is also available through " fax on demand" at (1-800) 342-2722. Conditions in cattle such as gastrointestinal roundworms, lungworms, eyeworms, grubs, lice, and mange mites may be treated with Dectomax (doramectin) 1% solution, says an FDA final rule. Cattle are not to be slaughtered within 35 days of treatment, and the product is not for use in dairy calves 20 months or older or in calves to be processed for veal. (FR Oct. 11) A genetically engineered mouse that should boost understanding of Alzheimer's disease and ultimately allow for testing of drug therapies has been developed by University of Minnesota researchers. The mouse is the first to exhibit both behavioral characteristics of Alzheimer's dementia and protein-derived plaques like those in the brains of people with the disease. (Science, Oct. 4) Children's test scores appear to improve when youngsters eat breakfast close to test time, according to Israeli research. A study examined 569 children, aged 11 to 13, of varying socioeconomic backgrounds. While eating breakfast two hours before a test did not appear to improve the children's cognitive functions, test scores improved significantly when children ate breakfast just half an hour before a test. (Archives of Pediatrics and Adolescent Medicine, October 1996) Depression may increase a woman's risk for broken bones, suggests a National Institute of Mental Health study. Researchers found the hip bone density of women with a history of depression to be 10 to 15 percent lower than normal for their age--so low that their risk of hip fracture increased by 40 percent over 10 years. Excess cortisol secretion, a common feature of some forms of depression, is known to cause bone loss and could account for some of the observed deficits, the researchers say. (New England Journal of Medicine, Oct. 17) ------------------------------------------------------------------------ Investigators' Reports Fast-Forwarding Video Service Permanently Ejected by Isadora Stehlin "Capture the joy of your unborn baby on videotape." Through the use of modern ultrasound, a Georgia company offered expectant parents this special service to add to their video library. But FDA says these "keepsake videos," taken for purely entertainment purposes without a doctor's prescription and for no medical reason, are an unapproved use of ultrasound equipment and therefore illegal. As a result, in the first such action of its kind, Fetal Fotos of Gainesville, Ga., agreed in a consent decree signed Sept. 12 to stop producing ultrasound images of unborn babies without a written prescription from a licensed doctor. According to Tom Jakub, chief of the diagnostic devices compliance branch in FDA's Center for Devices and Radiological Health, obstetricians use ultrasound imaging to check the size, location, number, or age of fetuses; the presence of some types of birth defects; and fetal movement, breathing and heartbeat. "Ultrasound is generally considered safe when properly used for medical reasons, and often the doctor will give parents a still photo from these tests," he says. But Fetal Fotos did not provide a medical service, as Fulton Varner and Andrew Paeng, investigators with FDA's Atlanta district office, learned when they first inspected Fetal Fotos on May 24, 1995. The inspection was part of FDA's nationwide effort to identify companies using ultrasound for unapproved uses. They questioned Donna Jans, owner of Fetal Fotos and a registered diagnostic medical sonographer, who admitted using an ultrasound scanner system to produce keepsake videos for $75. The investigators also learned from Jans that she gave customers a consent form that stated "this service is provided only for the purpose of creating the said videotape ... Fetal Fotos does not provide any diagnostic service or any service which could in any manner be construed to be a medical service." According to Varner, Jans would ask a prospective customer if she had discussed the procedure with a doctor, but if the customer hadn't, she still performed the sonography. In addition, the only record she kept of ultrasound procedures was a customer appointment log. FDA's Atlanta office sent a warning letter to Fetal Fotos on June 8, 1995, advising the company that this unapproved use of a medical device caused the device to be adulterated and misbranded. FDA warned the company to stop the unauthorized use of the device or face possible regulatory action such as seizure or injunction. In response to the warning, Jans, through her attorney, told the agency that Fetal Fotos would not produce any more keepsake videos and would provide diagnostic imaging only with a "prescription or other order of a licensed physician." However, when Paeng returned to Fetal Fotos on March 29, 1996, he found that Jans was still producing keepsake videos. The investigator contacted two of the doctors listed in Jans' records as having given verbal consent for her to perform the procedure on their patients. But the doctors told Paeng that Jans had never contacted them and that they had not issued written prescriptions or verbally authorized the procedure for their patients. When confronted with this information, Jans admitted that she had never contacted the doctors and, despite FDA's warning letter and three inspections, she indicated that she did not intend to change her business practices. On April 30, FDA asked the U.S. attorney for the Northern District of Georgia to file a complaint for seizure. The complaint was filed on June 17, and a U.S. marshal seized the equipment and promotional brochures on July 8. In the consent decree signed and entered in the U.S. District Court for the Northern District of Georgia, Jans agreed to stop producing ultrasound images of babies still in the womb without a doctor's written prescription and to keep detailed records of all ultrasound exams performed, including: * written prescriptions * names, addresses and phone numbers of prescribing doctors * patients' names * date and length of exams * patients' previous ultrasound exams. At press time, Jans had resumed business, and the agency planned to reinspect to make sure she was following the consent decree. Isadora Stehlin is a member of FDA's public affairs staff. ------------------------------------------------------------------------ Bulk Latex Gloves Blamed for Fires An import alert remains in effect for certain powder-free latex patient examination gloves imported from China. The gloves have the potential to spontaneously combust. The patient examination gloves were imported by a California company and labeled "Made in China." Fire inspectors attributed three warehouse fires in 1995 to the gloves. FDA issued the import alert in 1995, and, following an investigation, issued a public health advisory last summer to hospitals, manufacturers and distributors to inform them that powder-free latex examination gloves have the potential to ignite when stored in large quantities in extreme heat. FDA continues to study the combustibility of imported powder-free latex examination gloves from China and other countries. According to John Farnham, a consumer safety officer in FDA's Center for Devices and Radiological Health, the United States imports 17 million shipments of latex medical gloves each year. Powder-free latex gloves are believed to have caused fires in Memphis, Tenn., Middlesex, N.J., and New York City, in spring and summer 1995. In the latter, 67 firefighters were injured battling an eight-alarm fire at Brooklyn Navy Yard. The suspect gloves were imported from China by SJS Supreme Inc. of Yorba Linda, Calif. FDA issued the import alert Aug. 7, 1995, calling for all shipments of powder-free latex examination gloves imported by SJS to be detained at their ports of entry. On Aug. 18, FDA sent SJS a letter, notifying the importer that, because of the fires, it would have to "eliminate the unreasonable risk of substantial harm ... to persons who may be directly or indirectly exposed to these devices." SJS recalled the gloves. In a Sept. 18 letter, SJS asked the five distributors that had received shipments of the gloves to destroy their SJS powder-free latex examination glove inventory according to local laws on proper disposal of combustible materials. That same month, FDA investigators inspected several Chinese latex examination glove manufacturing facilities and found "numerous GMP [good manufacturing practice] violations," according to Dan Rowland, a compliance officer with FDA's Los Angeles district office. FDA officials also contacted the State Pharmaceutical Administration of China, the Chinese agency that regulates medical devices in that country. In early 1996, the Office of Science and Technology in FDA's Center for Devices and Radiological Health tested the thermal stability of imported powder-free latex examination gloves by exposing them to heat. The tests revealed that the SJS-imported gloves produced more heat than that to which they were exposed, suggesting that the gloves were capable of spontaneous combustion. Scientists with FDA's Forensic Chemistry Center in Cincinnati then compared the heat-producing gloves to non-heating ones and found chemical differences between the two. The center is now working on a test to detect gloves that could spontaneously ignite. FDA's public health advisory, issued June 27, 1996, urged hospitals, distributors, and other facilities that store large quantities of powder-free patient examination gloves to take certain precautions to reduce the risk of the gloves igniting. FDA advised these businesses to avoid large inventories of powder-free latex examination gloves and to break apart stacked cartons to allow air to circulate more freely. FDA's research indicated that higher temperatures short of ignition could cause latex gloves to deteriorate and lose their effectiveness as an adequate barrier. So, the agency's health advisory also cautioned hospitals and distributors to check powder-free latex examination gloves regularly for brittleness, tackiness, and an acrid chemical odor--all signs of latex glove deterioration. According to FDA's Rowland, the agency is working with the U.S. Customs Service to determine how best to handle one last shipment of the suspect powder-free gloves detained in Los Angeles. --Paula Kurtzweil ------------------------------------------------------------------------ A Case of Ackees And Other Smuggled Goods A Rochester, N.Y., wholesale food distributor voluntarily destroyed his supply of smuggled goods--a potentially poisonous tropical fruit and an unapproved drug promoted for use in babies. This followed a joint investigation by FDA, the U.S. Customs Service, and the state of New York. The government learned of the goods on Sept. 28, 1995, when an anonymous source called FDA's Buffalo, N.Y., district import operations branch to report that the distributor was selling canned ackees, a fruit widely eaten in Jamaica but banned in the United States. Under an FDA import alert, ackees are supposed to be detained at U.S. borders because the fruit contains natural toxins that can cause illness, even death. The toxins are in the fruit's flesh when the fruit is either green or overripe and in the seeds of the fruit at all times. The ackee is conclusively linked to "vomiting sickness" in Jamaica, causing convulsions, coma and death in most cases. Mark Prusak, the FDA compliance officer who took the complainant's call, tried repeatedly to meet with the person to get more information, but without success. About a month later, he met to discuss the illegal products with a customs special agent and James Sevchik, chief inspector with the New York State Department of Agriculture and Markets. On May 29, 1996, Prusak, the customs agent, and Robert Weinberg, another state inspector, visited the wholesale food distributor unannounced and talked to the firm's president. "We told him why we were there," Prusak says, "and asked him where the ackees were. He showed us one case." Labels identified the fruit as packed for Palm Rose Ltd., Kingston, Jamaica. The president admitted he bought five to 10 cases a month at $105 to $110 per case, ordering the fruit by telephone from an individual at New York's Bronx Terminal Market. He had no records of the purchases, he said, because he always paid in cash, putting it in an envelope and handing it to a truck driver, who took the payment to the contact at the market and picked up the ackees and brought them back to the store. Weinberg embargoed the ackees and ordered the firm to store them until further action. As the investigators continued their inspection, Weinberg noted 24 bottles of Woodward's Gripe Water on the store's shelves. He called the bottles to Prusak's attention. When questioned, the president said he bought this product from another source in the Bronx. Woodward's Gripe Water contains dill oil or dill water, sodium bicarbonate, alcohol, and other substances. Labeled for such medical uses as relieving baby's hiccups and minor stomach upsets, the product has been used in a number of other countries for years. In the United States, however, FDA considers it an unapproved drug. FDA also requires it to be detained at U.S. borders. After Prusak informed the distributor that the product was illegal, "he agreed to destroy the gripe water," Prusak says, "and signed an affidavit attesting to this." As Prusak and the others watched, the man opened each bottle and poured the contents down a sink drain. After being warned by the customs agent against dealing in smuggled goods, the distributor promised he would no longer handle either the ackees or the gripe water. In addition, he provided the names and addresses of his buyers--three grocery stores and three restaurants in Rochester and two restaurants in Syracuse. State inspectors made sure the ackees were removed from the grocery stores. FDA's Buffalo district office notified the agency's New York district office of the alleged sources of the ackees and gripe water for follow-up. On June 7, 1996, under Weinberg's supervision, the distributor destroyed the embargoed ackees by opening the cans and pouring a denaturing chemical over the product. --Dixie Farley ------------------------------------------------------------------------ Summaries of Court Actions Summaries of Court Actions are given pursuant to Section 705 of the Federal Food, Drug, and Cosmetic Act. Summaries of Court Actions report cases involving seizure proceedings, criminal proceedings, and injunction proceedings. Seizure proceedings are civil actions taken against goods alleged to be in violation, and criminal and injunction proceedings are against firms or individuals charged to be responsible for violations. The cases generally involve foods, drugs, devices, or cosmetics alleged to be adulterated or misbranded or otherwise violative of the law when introduced into and while in interstate commerce. Summaries of Court Actions are prepared by Food and Drug Division, Office of the General Counsel, HHS, and are published by direction of the Secretary of Health and Human Services. SEIZURE ACTIONS Food/Contamination, Spoilage, Insanitary Handling PRODUCT: Mushrooms, at Brooklyn, N.Y. (E.D.N.Y.); Civil Action No. CV-95-0324. CHARGED 1-23-95: While held for sale after shipment in interstate commerce at Good World Trading Co., in Brooklyn, N.Y., the articles were adulterated in that they contained an added poisonous and deleterious substance which might render them injurious to health--402(a)(1). The articles were also adulterated in that they were prepared and packed under conditions whereby they might have been rendered injurious to health--402(a)(4). The articles were misbranded in that their labeling falsely represented that they were grown and packed in Taiwan and that they were sliced mushrooms--403(a)(1). DISPOSITION: A decree of forfeiture and order of final delivery ordered the articles destroyed. (F.D.C. No. 67040; S. No. 94-725-854; S.J. No. 1) Drugs/Human Use PRODUCT: IKB gel, at Miami Lakes, Fla. (S.D. Fla.); Civil Action No. 96-1281-CIV-KING. CHARGED 5-13-96: While held for sale after shipment in interstate commerce at Tex International, Inc., in Miami Lakes, Fla., the articles were adulterated in that their strength differs from and their quality falls below that which they were represented to possess--501(c). The articles were misbranded in that their labeling falsely represented that they contained halcinonide and neomycin sulfate, and the information required to appear on the label did not appear in the English language--502(a) and 502(c). The articles were also misbranded in that they were not duly listed as required, and their labeling failed to bear the statement "Caution: Federal law prohibits dispensing without a prescription."--502(o) and 503(b)(4). DISPOSITION: The articles were destroyed. (F.D.C. No. 67141; S. No. 96-711-338; S.J. No. 2) Medical Devices PRODUCT: Dilapan hygroscopic cervical dilators, at Middlesex, N.J. (DNJ); Civil Action No. 92-1894(DRD). CHARGED 5-7-92: While held for sale after shipment in interstate commerce at Gynotech, Inc., in Middlesex, N.J., the articles were adulterated in that they were class III devices without an application for premarket approval--501(f)(1)(B). The articles were also adulterated in that the methods used in, and the facilities and controls used for, their manufacture, packing and storage were not in conformity with current good manufacturing practice requirements--501(h). The articles were misbranded in that their labeling failed to bear adequate directions for use, and the information required to be submitted to the agency was not submitted--502(f)(1) and 502(t)(2). DISPOSITION: The court enjoined the firm and its owner from distributing the articles in interstate commerce. Subsequently, an inspection of the firm revealed that it had ceased manufacturing and distributing the articles. (F.D.C. No. 66325; S. No. 91-612-926; S.J. No. 3) PRODUCT: Synchro tech relaxman, at Cleveland, Ohio (N.D. Ohio); Civil Action No. 1:93CV1577. CHARGED 7-28-93: While held for sale after shipment in interstate commerce at Meta Brain/Mind Biomedical Research Foundation in Cleveland, Ohio, the article was adulterated in that it was a class III device without an application for premarket approval--501(f)(1)(B). The article was misbranded in that its labeling falsely represented that it was adequate and effective for pain reduction, efficient digestion, waste elimination, better sexual functioning, and healthful physical energy levels--502(a). The article's labeling failed to bear adequate directions for use, and it lacked adequate warnings against use in those pathological conditions where its use might be dangerous to health--502(f)(1) and 502(f)(2). The article was also misbranded in that its use is a danger to health when used in the dosage or manner and with the frequency suggested on the labeling, and notice was not provided to the agency prior to the article's release into interstate commerce--502(j) and 502(o). DISPOSITION: The article was destroyed. (F.D.C. No. 66662; S. No. 93-670-602; S.J. No. 4) CRIMINAL ACTIONS DEFENDANT: W.W. Hurt d/b/a New River Livestock Company, at Blacksburg, Va. (W.D. Va.); Criminal No. 93-00122. CHARGED 7-23-93: Count 1: The defendant willfully conspired to defraud FDA by impeding its efforts to prevent adulterated meat intended for human consumption from entering interstate commerce and to defraud the Packers and Stockyards Administration (PSA) by impeding its efforts to ensure fair practices among livestock dealers and to protect consumers and members of the livestock and meat industries--18 U.S.C. sections 371 and 2. The defendant also devised a scheme using the telephone to defraud FDA and PSA- -18 U.S.C. section 1343. Count 2: The defendant, with the intent to defraud, willfully conspired to introduce into interstate commerce adulterated food which contained unsafe new animal drugs--18 U.S.C. sections 371 and 2. Count 3: The defendant, with the intent to defraud, delivered to slaughterhouses for slaughter and human consumption cows whose tissues contained unsafe new animal drugs--301(a) and 303(a)(2). Count 4: The defendant delivered cows to a slaughterhouse that were infected with a poisonous and deleterious substance that might render the food injurious to health--301(a) and 303(a)(2). Count 5: The defendant knowingly made a false statement to an FDA investigator that he was employed as a truck driver by the New River Livestock Company (NRLC) when, in fact, he controlled NRLC--18 U.S.C. section 1001. Count 6: The defendant knowingly made a false statement to an investigator that he did not ask producers whether animals were medicated, when, in fact, he frequently asked producers for this information--18 U.S.C. section 1001. Count 7: The defendant, for purposes of executing the scheme to defraud, used the telephone to conduct the business of NRLC by placing calls and receiving telephone wire communications from other cattle farmers and producers regarding the availability of cows for sale, and for making arrangements for transporting and purchasing these cows--18 U.S.C. section 1343. DISPOSITION: The defendant pleaded guilty to count three. He was sentenced to six months of imprisonment and 12 months of supervised release. He was also ordered to pay a $2,500 fine and a $50 assessment. (F.D.C. No. 66105; S. No. 91-662-441; S.J. No. 5) INJUNCTION ACTIONS DEFENDANTS: Roy H. Bowersox, at Winfield, Pa. (M.D. Pa.); Civil Action No. 1:CV-93-0545. CHARGED 4-13-93: The defendant delivered into interstate commerce adulterated cattle--301(a). The cattle were adulterated in that they contained an unsafe new animal drug--402(a)(2)(D). DISPOSITION: A consent decree of permanent injunction was filed. A follow-up inspection revealed the defendant had not changed operating practices. Subsequently, Mr. Bowersox attested that he no longer sells or delivers cows, and he intended to refrain from doing so in the future. (Inj. No. 1295; S. No. 92-632-209; S.J. No. 6) DEFENDANTS: Novie Iceland and Barry Karch, at Miami, Fla. (S.D. Fla.); Civil Action No. 95-1005. CHARGED 5-15-95: The defendants introduced into interstate commerce adulterated ready-to-eat smoked and unsmoked fish products. The fish products were adulterated in that they were prepared, packed or held under insanitary conditions whereby they might have become contaminated with filth--402(a)(4). DISPOSITION: The firm filed for Chapter 11 under the U.S. Bankruptcy Code. Subsequently, the bankruptcy case was converted to a Chapter 7 liquidation. (Inj. No. 1368; S. No. 91-594-341; S.J. No. 7) MISCELLANEOUS ACTIONS ACTION: Kimball v. Clausnitzer, et al., at Tampa, Fla. (M.D. Fla.); Civil Action No. 95-1399-Civ-T-24E. CHARGED 8-23-95: The plaintiff alleged that various federal officials deprived him of his fourth, fifth, ninth, and 14th Amendment rights. The allegations arose from an FDA investigation into the manufacture and distribution of unapproved cancer and AIDS drugs. DISPOSITION: The court found that the plaintiff failed to state any constitutionally based claim upon which relief could be granted. The court gave the plaintiff 11 days to amend the complaint. Subsequently, the court denied the plaintiff's motion for leave to amend the complaint and add parties. The court also granted a defendant's motion for award of attorney's fees and costs. (Misc. No. 1111; S.J. No. 8) ------------------------------------------------------------------------ ------------------------------------------------------------------------ FDA Consumer is the official magazine of the U.S. Food and Drug Administration. Each issue contains in-depth feature articles written for the general public on FDA-related health issues. The magazine also includes reports from FDA's own investigators that go behind the scenes to show how the agency protects the public from unsafe or worthless products. FDA Consumer is published monthly, except for combined issues for July-August and January-February. Subscriptions are available for $15 per year by writing: Superintendent of Documents Government Printing Office Washington, DC 20402-9371. ------------------------------------------------------------------------