Sildenafil is the generic equivalent of Pfizer’s Revatio, which is indicated for the treatment of pulmonary arterial hypertension in adults, to improve exercise ability and delay clinical worsening.

Pulmonary arterial hypertension (PAH) (WHO Group I) to improve exercise ability and delay clinical worsening, in adults who are temporarily unable to take oral Revatio. Give by IV bolus injection.

Off-label uses of either Revatio or Viagra are studied under its generic form, sildenafil. Other uses of sildenafil include: The prevention of high-altitude pulmonary edema: High-altitude ...