Off-label uses of either Revatio or Viagra are studied under its generic form, sildenafil. Other uses of sildenafil include: ...

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.

Revatio extended the patent life of the franchise, but generics of the product first appeared in 2012. Earlier this year the FDA approved the first generic of an oral suspension formulation of the ...