비아그라는 무엇을 의미합니까?
In reports with healthier volunteers of solitary doses up to 800 mg, adverse reactions ended up just like Individuals witnessed at lessen doses but incidence fees and severities were elevated.Sildenafil enhances the effect of NO by inhibiting phosphodiesterase kind 5 (PDE5), which is responsible for degradation of cGMP from the corpus cavernosum. S