FDA Warns About Fraudulent Tamiflu

The Food and Drug Administration (FDA) is warning consumers about a potentially harmful product represented as “Generic Tamiflu” sold over the Internet. FDA tests revealed that the fraudulent product does not contain Tamiflu’s active ingredient, oseltamivir, but cloxacillin, an ingredient in the same class of antibiotics as penicillin.

The agency reminds patients who are allergic to or may have experienced adverse reactions from penicillin products that they are at risk of experiencing similar reactions from cloxacillin. This includes a sudden, potentially life-threatening reaction called anaphylaxis, with symptoms that include difficulty breathing, chest tightness, swelling of the throat or tongue, hives, dizziness, loss of consciousness, or a rapid or weak pulse. To date, the FDA is not aware of any reports of adverse reactions.

There is no FDA-approved generic drug for the prescription product Tamiflu.

The FDA bought the fraudulent “Generic Tamiflu” without a prescription from a Web site claiming to be an online drugstore that is no longer operational. The fraudulent version is likely to be found for sale on other Web sites, however.

“A rogue Internet Web site marketing drug products may look like a professional and legitimate Web site, but may actually be an illegal operation,” said Commissioner of Food and Drugs Margaret A. Hamburg, MD. “Medicines purchased from Web sites operating outside the law put consumers at increased risk due to a higher potential that the products will be counterfeit, impure, contaminated, or have too little or too much of the active ingredient.”

The FDA-purchased product arrived in an envelope postmarked from India, containing two foil-backed blister packages each with 15 yellow and tan capsules containing white powder. The foil backing is printed, and labeled in part, “Oseltamivir Phosphate 75mg. Capsules TM-FLU Capsules” and “Manufactured by: TRYDRUGS Pharmaceuticals PVT. LTD.”

Although the FDA actively monitors the Internet and when appropriate purchases and analyzes drug products, consumers who purchase drugs using an online pharmacy can protect themselves by knowing how to recognize a legitimate Internet pharmacy and how to buy medicines safely online. Legitimate internet pharmacies are licensed by the appropriate U.S. Board of Pharmacy and follow the applicable laws and regulations.

Consumers can also be confident that the National Association of Boards of Pharmacy Verified Internet Pharmacy Sites Seal, also known as VIPPS Seal, gives a seal of approval to pharmacy sites that apply and meet state licensure requirements.

The FDA advises anyone possessing or encountering any of these fraudulent Tamiflu drugs not to use them and to contact the FDA's Office of Criminal Investigations by calling 800-551-3989.

Healthcare professionals and consumers are encouraged to report adverse events that may be related to the use of these fraudulent products to the FDA's MedWatch Program by phone at 800-FDA-1088, by fax at 800-FDA-0178, or by mail at: MedWatch, HF-2, FDA, 5600 Fishers Lane, Rockville, Md. 20852-9787.