Viagra pharmacological properties

Viagra (Sildenafil citrate) was initially created as a drug to treat high blood pressure and angina. It was discovered that the drug had little consistent impact in this area, but that it did result in erectile activity. Viagra is the best known brand name of this drug, and it has been freely available in the UK and US since the 1990s.

To learn more about Viagra and ED causes, read on through the site.