비아그라에 대한 5가지 쉬운 사실 설명

[33] Experiments on the effects of sildenafil when utilised recreationally are confined, but suggest it's got minimal result when used by individuals that do not need erectile dysfunction. In a single study, a 25 mg dose was revealed to result in no sizeable alter in erectile good quality, but did lessen the postejaculatory refractory time.[34] Th