비아그라에 대해 알아야 할 고려 사항

an erection that will not go away (priapism). If you have an erection that lasts in excess of 4 hrs, get professional medical support right away. If It is far from dealt with straight away, priapism can completely harm your penis.The maximum dose of Viagra is one hundred mg daily. Doses previously mentioned the most dose, including 200 mg on a dail