What guidelines should I follow when taking aspirin?

Dr. Mehmet Oz, MD
Cardiology (Cardiovascular Disease)
Always consult your physician or pharmacist before adding any medications, prescribed or otherwise, to your regimen. However, general guidelines for taking aspirin are as follows:
  • For a headache or muscle ache, take 325 mg of aspirin every four to six hours.
  • To prevent a heart attack, take two low-dose (81 mg) aspirin every day if you’re at risk or over age 40.
  • If you think you’re having a heart attack, take 325 mg of aspirin, and make sure to chew the aspirin before swallowing because it will get into the bloodstream quicker.
  • Do not take more than 4,000 mg of aspirin per day, which is about 12 doses.

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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.