|
Viagra is an FDA-approved oral tablet used to treat male erectile dysfunction and/or impotence. It works by inhibiting the enzyme that constricts the penile blood vessels, thus dilating the vessels in the penis and allowing blood to reach needed places to achieve an erection
VIAGRA can cause some side effects. These are usually mild and don't last longer than a few hours. Some of these side effects are more likely to occur with higher doses of VIAGRA. With VIAGRA, the most common side effects are headache, facial flushing, and upset stomach. VIAGRA may also briefly cause bluish or blurred vision, or sensitivity to light. In the rare event of an erection lasting more than 4 hours, seek immediate medical help.
|
