비아그라에 대해 알려지지 않은 사실
VIAGRA has sildenafil, which is similar medication present in another drug called REVATIO. REVATIO is used to treat a uncommon disorder known as pulmonary arterial hypertension (PAH).Major coronary heart symptoms such as fast, irregular, or pounding heartbeats; fluttering in the chest; shortness of breath; and sudden dizziness, lightheartedness, or