LITTLE KNOWN FACTS ABOUT VIAGRA.

The commonest side effects of VIAGRA are headache; flushing; upset abdomen; abnormal eyesight, such as variations in color eyesight (which include using a blue coloration tinge) and blurred vision; stuffy or runny nose; back again ache; muscle mass agony; nausea; dizziness; rash.NO then activates the enzyme guanylate cyclase, which ends up in great