Viagra Often a Hidden Ingredient in Natural Supplements
Twenty years after Viagra’s approval, the FDA is scrambling to catch dangerous impostors.
On March 27, Viagra celebrated its 20th anniversary. Over the past two decades, millions of men have taken the erectile dysfunction drug, which rakes in about $1.5 billion per year on average. In the process, the little blue pill has become a cultural touchstone, with mentions in rap lyrics, on TV shows and in movies—even .
