Introduced in 1998, Viagra surpassed even Prozac to become the best-selling drug of all time. But Viagra has now been implicated in 69 deaths, as well as heart attacks, hypertension and other health problems-and may in fact make the underlying problems worse in the long run. For those men who wish to avoid the risks of Viagra, here is the most up-to-date information on natural, safe and long-term cures for impotence.