Viagra: The Gold Standard in Erectile Dysfunction Treatment

Viagra relaxes muscles found in the walls of blood vessels and increases blood flow to particular areas of the body.

Viagra is used to treat erectile dysfunction (impotence) in men. Another brand of sildenafil is Revatio, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women. This page contains specific information for Viagra, not Revatio

Does Viagra work to treat ED?

Yes, it does. In several clinical studies, Viagra was effective in treating ED. In these studies, males who used the drug had an improved ability to have and keep erections that allowed for successful sex.

Across the studies, between 43% and 83% of people who took Viagra had improved erections. (These rates varied depending on the cause of their ED and the dosage of Viagra they took.) In comparison, improved erections occurred in 10% to 24% of people who took a placebo (no active drug).

To learn more about Viagra’s effectiveness, see the “Viagra uses” section below.

How long does Viagra take to work?