The most common side effects of VIAGRA are headache; flushing; upset tummy; abnormal eyesight, such as modifications in colour eyesight (for example having a blue colour tinge) and blurred vision; stuffy or runny nose; back soreness; muscle mass soreness; nausea; dizziness; rash.Ospemifene (Osphena). Taken every day, this pill can assist ease distr