비아그라에 대해 알아야 할 고려 사항

abnormal vision, for instance changes in color eyesight (for example having a blue coloration tinge) and blurred eyesightan erection that won't go away (priapism). When you have an erection that lasts much more than 4 several hours, get medical support right away. If It is far from taken care of right away, priapism can forever injury your penisAs