비아그라에 대한 모든 것

abnormal vision, such as alterations in colour eyesight (for example getting a blue color tinge) and blurred visionan erection that will not disappear (priapism). Should you have an erection that lasts in excess of 4 hours, get professional medical assistance at once. If It's not handled at once, priapism can forever hurt your penisThe drug details