VIAGRA has sildenafil, which is similar medicine present in An additional drug known as REVATIO. REVATIO is made use of to take care of a unusual sickness named pulmonary arterial hypertension (PAH).Effects of Other Medicines on VIAGRA Sildenafil metabolism is principally mediated by CYP3A4 (significant route) and CYP2C9 (insignificant route). Thus… Read More