What is Viagra
Viagra started as a treat for heart disease (angina). However, during the trial studies penile erection enhancing effects were noticed. The drug got patented in 1996 and approved by the Food And Drug Administration (FDA) on March 27, 1998 (as the first pill approved to treat erectile dysfunction in the US). Year later it was offered for sale in the United States.
Viagra stop body chemical causing blood to flow out of the penis. It start working after 30 minutes.
Viagra helps millions of people how suffered from ED and completely changed their life.