비아그라에 대한 2분 규칙
When day by day Cialis can be taken without having regard to sexual exercise but must be taken concurrently daily (for example, on awakening).The most typical Unintended effects of VIAGRA: headache; flushing; upset stomach; irregular vision, for example changes in colour eyesight (like getting a blue colour tinge) and blurred vision; stuffy or runn