The commonest side effects of VIAGRA: headache; flushing; upset belly; abnormal eyesight, like variations in colour vision (like using a blue shade tinge) and blurred eyesight; stuffy or runny nose; back discomfort; muscle soreness; nausea; dizziness; rash. While almost all of the Unwanted effect

In addition, N-desmethyl metabolite AUC and Cmax values considerably amplified by two hundred% and 79%, respectively in subjects with significant renal impairment in comparison to topics with usual renal functionality. Major heart indicators which include fast, irregular, or pounding heartbeats;