비아그라의 가장 좋은 면

Get hold of your medical doctor or look for crisis health-related attention If the erection is painful or lasts for a longer period than 4 several hours. A chronic erection (priapism) can damage the penis.an erection that won't disappear (priapism). If you have an erection that lasts greater than 4 hrs, get clinical assistance right away. If It is