비아그라는 무엇을 의미합니까?

VIAGRA contains sildenafil, which is similar drugs located in another drug named REVATIO. REVATIO is utilised to deal with a scarce ailment referred to as pulmonary arterial hypertension (PAH).The most typical Uncomfortable side effects of VIAGRA: headache; flushing; upset belly; irregular eyesight, like adjustments in shade vision (such as using a