The effects of Viagra are pretty well known these days — the average guy understands that if you have erectile dysfunction (ED), Viagra works to help you get hard. But after the top-level stuff is ...

Why don’t doctors necessarily hand out free Viagra samples anymore? Viagra is now available as a generic, making it more ...

This story was reviewed by Mike Bohl, MD. In the ‘80s, researchers set out to test a medication called sildenafil citrate for treating high blood pressure and angina (chest pain) from heart disease.

Contrary to its name, herbal Viagra (or natural Viagra) usually doesn’t contain sildenafil citrate, the active ingredient in Viagra. If it does contain sildenafil citrate, it does so illegally.

Sildenafil citrate is a selective and potent inhibitor of phosphodiesterase type 5 (PDE5). PDE5 is a cyclic guanosine monophosphate (cGMP) specific degrading enzyme that is highly present in the ...

However, there has been a great change in treatment since 1998 when the first successful oral form of therapy, sildenafil citrate, was introduced. In addition, studies have shown that most cases of ED ...

Bioequivalence Studies of Sildenafil Citrate Orodispersible Film Administered with and without Water vs ViagraⓇ Film-Coated Tablets in Healthy Male Volunteers. Three Weekly Intra-Articular ...