The U.S. Food and Drug Administration warns that this instant coffee product, marketed as a dietary supplement for sexual enhancement, contains an active drug ingredient that can dangerously lower blood pressure.

Goodness! How could this happen?

The FDA determined that Magic Power Coffee contains hydroxythiohomosildenafil–the active ingredient in the prescription drug called Viagra (sildenafil).

Hydroxythiohomosildenafil, like sildenafil, may interact with prescription drugs known as nitrates, including nitroglycerin, and cause dangerously low blood pressure.

To date, the FDA is not aware of any adverse events associated with the use of Magic Power Coffee, which is sold on the Internet in a 2-serving box and a 12-serving carton containing 6 2-serving boxes.

The FDA advises consumers who experienced any negative side effects from Magic Power Coffee or other “natural” sexual enhancement products to consult a healthcare professional and safely discard the product. Consumers and healthcare professionals should report adverse events to the FDA’s MedWatch program at 800-FDA-1088 or online at

6/21/10 15:47 JR

Hi, I’m JR

John Russo, Jr., PharmD, is president of The MedCom Resource, Inc. Previously, he was senior vice president of medical communications at, a complementary and alternative medicine website.