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Daily aspirin therapy: Understand the benefits and risks

What's the best dose of aspirin to take?

Your health care provider will likely discuss what aspirin dose is right for you. Low doses of aspirin — such as 75 to 100 milligrams (mg), but most commonly 81 mg —can be effective at preventing heart attack or stroke. Health care providers usually prescribe a daily dose between 75 mg and 325 mg (a regular-strength tablet).