Revatio and Viagra contain the same active ingredient called sildenafil. However, Revatio is used for pulmonary arterial hypertension (PAH), whereas Viagra is used for erectile dysfunction (ED).

Sildenafil is the generic form of Viagra. It’s also the primary active ingredient found in Revatio and Viagra. Sildenafil works similarly to Viagra but is available at a much lower price.

Revatio is taken in smaller doses multiple times a day, and individuals using it should avoid Viagra or other PDE5 inhibitors to prevent complications. Even if you do not have high blood pressure ...