In brief: Chew on this
Chew on this
If you think you're having a heart attack, you're supposed to take an aspirin right away. A dose of 325 milligrams will do. Aspirin keeps platelets from clumping. And that should help keep the blood clot (or clots) in your coronary arteries — which is what triggers the heart attack — from getting any bigger and further depriving your heart of the blood it needs.
Time is of the essence, and chewing the aspirin tablet will get the anti-sticky-platelet action going faster. Needless to say, you shouldn't take coated aspirin, which is designed to bypass the stomach and be absorbed in the intestine.