The FDA has posted warning letters addressed to 14 U.S.-based companies illegally selling more than 65 products that fraudulently claim to prevent, diagnose, treat or cure cancer. The products are marketed and sold without FDA approval, most commonly on websites and social media platforms.

“Consumers should not use these or similar unproven products because they may be unsafe and could prevent a person from seeking an appropriate and potentially life-saving cancer diagnosis or treatment,” said Douglas W. Stearn, director of the Office of Enforcement and Import Operations in the FDA’s Office of Regulatory Affairs. “We encourage people to remain vigilant whether online or in a store, and avoid purchasing products marketed to treat cancer without any proof they will work. Patients should consult a health care professional about proper prevention, diagnosis and treatment of cancer.”

It is a violation of the Federal Food, Drug and Cosmetic Act to market and sell products that claim to prevent, diagnose, treat, mitigate or cure diseases without first demonstrating to the FDA that they are safe and effective for their labeled uses. The illegally sold products cited in the warning letters posted today include a variety of product types, such as pills, topical creams, ointments, oils, drops, syrups, teas and diagnostics (such as thermography devices). They include products marketed for use by humans or pets that make illegal, unproven claims regarding preventing, reversing or curing cancer; killing/inhibiting cancer cells or tumors; or other similar anti-cancer claims.

The FDA has requested responses from the 14 companies stating how the violations will be corrected. Failure to correct the violations promptly may result in legal action, including product seizure, injunction and/or criminal prosecution.

As part of the FDA’s effort to protect consumers from cancer health fraud, the FDA has issued more than 90 warning letters in the past 10 years to companies marketing hundreds of fraudulent products making cancer claims on websites, social media and in stores. Although many of these companies have stopped selling the products or making fraudulent claims, numerous unsafe and unapproved products continue to be sold directly to consumers due in part to the ease with which companies can move their marketing operations to new websites. The FDA continues to monitor and take action against companies promoting and selling unproven treatments in an effort to minimize the potential dangers to consumers and to educate consumers about the risks.

The FDA encourages health care professionals and consumers to report adverse reactions associated with these or similar products to the agency’s MedWatch program.

The FDA, an agency within the HHS, protects the public health by assuring the safety, effectiveness, and security of human and veterinary drugs, vaccines and other biological products for human use, and medical devices. The agency also is responsible for the safety and security of our nation’s food supply, cosmetics, dietary supplements, products that give off electronic radiation, and for regulating tobacco products.