비아그라는 무엇을 의미합니까?

Speak to your health care provider or seek crisis medical attention if your erection is distressing or lasts for a longer period than four hrs. A prolonged erection (priapism) can destruction the penis. Viagra can often cause short term adjustments to your eyesight When you have a dose. The most typical result is a blue tinge in your eyesight. Y