Viagra may prevent heart attacks, strokes

The drug is usually used to treat erectile dysfunction. But a group of researchers in Canada say it may help prevent heart attacks and strokes in people who have stents by keeping their arteries open.

A clot on a stent can lead to heart attack or stroke. Findings show Viagra was able to regulate an enzyme in cells that helps platelets in the blood form clots.

Learn more about this study in the journal Proceedings of the National Academy of Sciences.