비아그라는 더 이상 미스터리가 아닙니다.
The most common side effects of VIAGRA: headache; flushing; upset belly; irregular vision, for instance changes in colour eyesight (such as having a blue coloration tinge) and blurred vision; stuffy or runny nose; again suffering; muscle discomfort; nausea; dizziness; rash.choose any medicines referred to as nitrates, normally prescribed for chest