비아그라에 대한 5가지 간단한 기술

[33] Studies on the effects of sildenafil when made use of recreationally are limited, but recommend it has tiny effect when utilized by people that don't have erectile dysfunction. In one research, a 25 mg dose was demonstrated to induce no substantial adjust in erectile top quality, but did reduce the postejaculatory refractory time.[34] This re