비아그라에 대해 알려지지 않은 사실

VIAGRA has sildenafil, which is similar drugs present in another drug known as REVATIO. REVATIO is utilized to treat a uncommon disease called pulmonary arterial hypertension (PAH).Some patients skilled a sudden loss of some or all in their eyesight when they took sildenafil or other prescription drugs which have been comparable to sildenafil. The