비아그라에 대한 5가지 간단한 설명 설명
VIAGRA contains sildenafil, which is identical drugs found in another drug known as REVATIO. REVATIO is applied to take care of a exceptional disorder referred to as pulmonary arterial hypertension (PAH).The most typical side effects of VIAGRA: headache; flushing; upset stomach; irregular vision, for example variations in color vision (such as usin