You’ve probably seen these small pills, often called ‘baby aspirin,’ but why 81 milligrams, and what exactly is it for?
This tiny dose is primarily used to help prevent serious events like heart attacks and strokes, especially in people at risk.
Aspirin works as a blood thinner, not by making your blood watery, but by making blood cells called platelets less sticky, stopping them from forming dangerous clots that can block arteries.
That specific 81 milligram number isn’t arbitrary! It’s actually a historical carryover from the old ‘apothecary system’ of weights, where it was precisely one-quarter of a standard 5-grain aspirin dose.
While it’s highly beneficial for those who’ve already had a heart attack or stroke, or have existing heart disease, for others, the decision to take 81 milligram aspirin daily is complex. It lowers your risk of clots but also increases the risk of bleeding, especially in the stomach or brain. Your doctor will weigh these benefits against potential risks for your specific situation.
So, if you’re wondering if 81 milligram aspirin is right for you, don’t start it on your own. Always have a conversation with your healthcare provider to understand your personal risks and benefits.