비아그라에 대해 알려지지 않은 사실

VIAGRA incorporates sildenafil, which is the same medicine present in A different drug named REVATIO. REVATIO is applied to deal with a rare illness named pulmonary arterial hypertension (PAH).an erection that will not disappear (priapism). When you have an erection that lasts much more than 4 several hours, get clinical aid instantly. If It's not