비아그라 - 개요

VIAGRA is made up of sildenafil, which is identical medicine present in An additional drug named REVATIO. REVATIO is made use of to treat a unusual sickness known as pulmonary arterial hypertension (PAH).an erection that won't go away (priapism). Should you have an erection that lasts more than four hours, get clinical assistance at once. If It's n