LITTLE KNOWN FACTS ABOUT VIAGRA.

Pregnancy. It's not necessarily acknowledged if or how sildenafil could have an affect on pregnancy or damage an unborn infant. Convey to your Health care provider When you are or program to be pregnant.Thus, the metabolite is to blame for about 20% of sildenafil's action. Sildenafil is excreted as metabolites predominantly from the feces (about 80