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 10mg/vial ... in adults who are temporarily unable to take oral Revatio. Give by IV bolus injection. Advise patients to seek immediate medical attention for a sudden loss of vision ...

Revatio (sildenafil citrate) – which is based on the same PDE5 inhibitor active ingredient as Pfizer’s Viagra erectile dysfunction drug – failed to show any additional benefit when combined ...