Chew aspirin during a heart attack (and call 9-1-1).
Hospitals may use high tech tools to treat your heart attack, but you or they can start with one of the oldest medicines: aspirin.
Chewing an aspirin when you think you might be having a heart attack may reduce the damage. If you take an ambulance to the hospital, emergency workers might have you take aspirin.
A heart attack occurs when blood flow is blocked and clots form in an artery around the heart. Aspirin slows the clotting and can reduce the size of a blood clot blocking the artery.
Aspirin can reduce the severity of a heart attack if you take it right after symptoms begin. Remember, if you think you may be having a heart attack, call 9-1-1 and get to a hospital immediately.