The most typical Negative effects of VIAGRA: headache; flushing; upset belly; abnormal vision, such as alterations in shade vision (including having a blue color tinge) and blurred vision; stuffy or runny nose; back pain; muscle mass discomfort; nausea; dizziness; rash. an erection that will not go away (priapism). When https://paulinet630iow6.wikiap.com/user