The commonest Uncomfortable side effects of VIAGRA: headache; flushing; upset tummy; irregular eyesight, which include variations in coloration eyesight (for example using a blue shade tinge) and blurred vision; stuffy or runny nose; back soreness; muscle pain; nausea; dizziness; rash. choose medicines named "nitrates" (including nitroglycerin) use Avenue medicines https://benjaminu630ipw6.aboutyoublog.com/profile