비아그라에 대해 알아야 할 고려 사항

Sildenafil can reduce blood stream on the optic nerve of the eye, producing sudden eyesight loss. This has happened in a small range of people getting sildenafil, almost all of whom also had cardiovascular disease, diabetes, high blood pressure level, superior cholesterol, or sure pre-existing eye difficulties, and in people who smoked or have been

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