비아그라에 대한 5가지 쉬운 사실 설명
Sildenafil can lower blood move on the optic nerve of the eye, triggering sudden eyesight loss. This has transpired in a small variety of individuals having sildenafil, the majority of whom also had heart problems, diabetic issues, higher hypertension, higher cholesterol, or sure pre-existing eye challenges, and in individuals who smoked or were ab