비아그라 - 개요
VIAGRA has sildenafil, which is similar medication present in A different drug known as REVATIO. REVATIO is used to deal with a uncommon disorder termed pulmonary arterial hypertension (PAH).VIAGRA is made up of sildenafil, which is the same medication located in A further drug referred to as REVATIO. REVATIO is made use of to deal with a scarce co