Viagra Can Be Considered a Man-Made Nitric Oxide

Question

Viagra can be considered a man-made nitric oxide.

Accepted Answer

Viagra works by inhibiting the enzyme that breaks down nitric oxide, thus increasing the levels of nitric oxide in the body, which in turn relaxes the blood vessels and improves blood flow to the penis, leading to an erection. However, while it enhances the effects of nitric oxide, it is not a man-made form of it.