Viagra Side effects
There are no serious side effects associated with Viagra.
However, as with all other medication, it is possible that some side effects may occur, depending on the person. Some of the observed side effects include headaches, facial flushing, and an upset stomach.
Based on reports, however, these occur rarely and when they do, the effects are mild and do not last for more than a few hours.
Other side effects which are less common include bluish or blurred vision, which is temporary, and sensitivity to light. Based on clinical studies, the side effects tend to diminish or disappear over time.