Sildenafil is the generic form of the brand-name medication Viagra. Sildenafil is a certain type of enzyme inhibitor used to treat erectile dysfunction (ED).
Sildenafil (Viagra)by Greenstone
Prescription Required
Used to treat Erectile Dysfunction
Greenstone
Manufacturer
United States
Based in
Erectile Dysfunction
Health Condition
12
Similar Drugs
Contains no gluten
Contains no lactose
Contains no soy
Contains no gelatin
Contains no sweeteners
Contains no dye
Uses of Sildenafil (Viagra)
About Greenstone
Founded in 1993, Greenstone distributes about 80 drugs in the U.S. It is a wholly-owned subsidiary of Pfizer Inc. The number of manufacturing locations was not readily available, but at least some are located in North America and Europe.











