비아그라에 대해 알아야 할 고려 사항
The most typical side effects of VIAGRA: headache; flushing; upset abdomen; irregular vision, including improvements in colour vision (for instance getting a blue coloration tinge) and blurred vision; stuffy or runny nose; again discomfort; muscle mass pain; nausea; dizziness; rash.The commonest side effects of VIAGRA: headache; flushing; upset tum