비아그라에 대한 사실 아무도 제안하지 않는다
[33] Experiments on the consequences of sildenafil when used recreationally are minimal, but counsel it has small result when used by people who do not need erectile dysfunction. In a single examine, a twenty five mg dose was revealed to cause no substantial change in erectile top quality, but did reduce the postejaculatory refractory time.[34] Th