Aspirin approved as emergency treatment for heart attacks (Dr. Dan Kalla, St. Paul's Hospital)

Doctors have known for more than a decade that chewing an aspirin during a heart attack can dramatically lower the risk of death.

But now, Health Canada has given Bayer, the maker of aspirin, the go-ahead to actually market the drug as an emergency treatment.

For over a hundred years, acetylsalicylic acid, more commonly known as aspirin, has been marketed as a pain killer, but now its ability to treat heart attacks in the early stages is also being touted.

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