FDA warns consumers on sexual enhancement products: Another dietary supplement is found to be contaminated with potentially dangerous ingredient.

On 5 Nov 2009, the US Food and Drug Administration warned consumers that Stiff Nights, a product marketed as a dietary supplement for sexual enhancement, contains an ingredient that can dangerously lower blood pressure and is illegal. Over the past several years, the FDA has found many products marketed as "dietary supplements" for sexual enhancement that contain undeclared active ingredients of FDA-approved drugs, analogs of approved drugs and other compounds that do not qualify as "dietary ingredients." The FDA has issued multiple alerts about these contaminated dietary supplements. Consumers and health care professionals should be aware of this problem and the health hazard it …