Yohimbe bark extract comes from a tall evergreen tree native to the jungles of West Africa, where the bitter bark has long been used as an aphrodisiac. Its active ingredient, yohimbine, is available ...

Flip on WTOP radio to catch a traffic report, and you may hear an ad for ViraMax, an over-the-counter dietary supplement that claims to be "Nature's Answer to Viagra." It's not the only Viagra wannabe ...