비아그라에 대해 거의 알려지지 않은 사실

an erection that will not disappear (priapism). When you've got an erection that lasts in excess of 4 several hours, get health care aid right away. If It's not necessarily taken care of at once, priapism can completely destruction your penis* VIAGRA only functions when you find yourself sexually stimulated. It has been verified that will help guys