Viagra Links - FindLaw
Created by FindLaw's team of legal writers and editors| Last reviewed June 20, 2016
Viagra Information from Pfizer, Inc.
Drug manufacturer's website containing information on Viagra
Viagra Information from the FDA
From the U.S. Food and Drug Administration's (FDA) Center for Drug Evaluation and Research
MedlinePlus Drug Information: Sildenafil (marketed as Viagra)
Viagra information from the U.S. National Library of Medicine and the National Institutes of Health
Erectile Dysfunction
Information from the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health