비아그라에 대해 알려지지 않은 사실

an erection that will not disappear (priapism). For those who have an erection that lasts in excess of 4 hrs, get professional medical help immediately. If It's not taken care of instantly, priapism can permanently hurt your penisYour individual health practitioner at REX will help identify these warning symptoms, letting you to choose the best ste