How much aspirin should women take to prevent heart attack?

Holly S. Andersen, MD
Cardiology (Cardiovascular Disease)
The dose of aspirin that is most beneficial to prevent heart attacks in women is one or two low-dose/baby aspirin, which equals about 162 milligrams. Watch cardiologist Holly Andersen, MD, explain how much aspirin is safe to take for prevention.
HealthyWomen
Administration
For women who should be on aspirin therapy, it doesn't take much to get the benefits. Studies find that between 75 and 100 mg, known as "low-dose aspirin therapy," are enough to reduce the risk for heart attack or angina. Most aspirin brands come in low-dose formulations of 81 mg. The upper dosage for aspirin in women at a high risk for heart disease is 325 mg.

Aspirin's cardioprotective benefits stem from its unique ability to interfere with the blood cells that are responsible for forming sticky clots. Aspirin also soothes inflammation in the arteries, which can help protect blockages from developing.

Continue Learning about Aspirin

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.