비아그라 - 개요
The most typical Uncomfortable side effects of VIAGRA: headache; flushing; upset abdomen; abnormal vision, like alterations in colour eyesight (including aquiring a blue colour tinge) and blurred vision; stuffy or runny nose; again pain; muscle soreness; nausea; dizziness; rash.VIAGRA can cause your hypertension to drop suddenly to an unsafe stage