Sex Supplements May Contain Hidden, Harmful Drugs

Consumers should not buy sexual enhancement supplements, either online or in stores, because the products may contain undisclosed drugs that could cause serious harm, medical experts say.

Although advertisements on sex supplements purport that the products improve sexual function, there is no evidence to support these claims, said Dr. Pieter Cohen, an assistant professor of medicine at Harvard Medical School and a general internist at Cambridge Health Alliance in Boston. In fact, there is no non-prescription product that has any proven benefit for helping with erections, Cohen said.

Oftentimes manufacturers secretly add prescription drugs, such as sildenafil (sold under the brand name Viagra) or tadalafil (brand name Cialis), so that customers continue to use the products, Cohen said. Sometimes these undisclosed drugs are slightly modified versions of existing drugs, which are completely experimental and have not been shown to be safe, Cohen said.

"These products either do not work, or if they do work, are potentially harmful," because they contain undisclosed drugs, Cohen said.

In 2009, sex supplements tainted with high doses of diabetes medication caused more than 12 deaths in Asia. If doctors, lawmakers and legislatures don't act soon to reduce exposure to these supplements, more deaths could follow, Cohen said.

Doctors should have a low threshold for prescribing erectile dysfunction drugs so that patients do not turn to potentially dangerous supplements, Cohen said.

Sex supplement dangers

The Food and Drug Administration regulates dietary supplements only after they enter the market, and the agency is not able to test all of these products for safety.

Earlier this year, the FDA warned consumers that a number of sexual enhancement supplements contained undisclosed drugs. And a few weeks ago, several sex supplements were recalled.

Consumers who ingest tainted supplements don't know that they are taking prescription drugs, and have not been are not properly counseled about the side effects of the drugs, Cohen said.

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Sex Supplements May Contain Hidden, Harmful Drugs