SEX FOR DUMMIES

The most typical Negative effects of VIAGRA: headache; flushing; upset tummy; irregular vision, for instance adjustments in color vision (such as using a blue color tinge) and blurred eyesight; stuffy or runny nose; again pain; muscle mass discomfort; nausea; dizziness; rash.are allergic to sildenafil, as contained in VIAGRA and Revatio®, or any i