Generic name: Aspirin.

Other brand names: A.S.A., Ascriptin, Bayer, Bufferin, Ecotrin, Empirin, Measurin, Norwich, Zorprin.

Aspirin is an analgesic and anti-inflammatory agent. It reduces pain and inflammation. 

Quick Facts About Aspirin


Used to treat mild to moderate pain, fever, and inflammatory conditions such as rheumatoid arthritis. Has been shown to reduce the risk of small strokes and heart attacks in men with chest pain. Also temporarily relieves muscle aches, colds, flu, and menstrual discomfort.

Aspirin Dosage

Do not take more than the recommended dose. If it has a strong, vinegar-like odor, do not use.

  • Usual adult dose: for treatment of minor pain and fever — 1 or 2 tablets every 3 to 4 hours, up to 6 times per day. For stroke prevention — 1 tablet 4 times per day or 2 tablets 2 times per day. For heart attack prevention — 1 tablet daily. Your doctor may prescribe a higher dose.
  • Usual child dose: consult your doctor before administering Aspirin to children.
  • Missed dose: take as soon as possible, unless almost time for next dose. If so, skip missed dose; go back to regular schedule. Do not double doses.

Aspirin Side Effects

Overdose symptoms:

nausea, neurologic abnormalities (coma, disorientation, seizures), vomiting. If you suspect an overdose, immediately seek medical attention.

More common side effects: bloody or tarry stools, dehydration, hyperactivity, hyperthermia, hyperventilation, heartburn, nausea and/or vomiting, possible involvement of stomach ulcers and bleeding, stomach pain, stomach upset.

Less common Aspirin side effects: loss of hearing or ringing in the ears, confusion, difficult or painful urination, difficulty in breathing, skin rash, unusual weakness.


Inform your doctor before combining Aspirin with:

Acetazolamide (Diamox); ACE-inhibitor-type blood pressure medications such as Capoten; antigout medications such as Zyloprim; arthritis medications such as Motrin and Indocin; blood thinners such as Coumadin; certain diuretics such as Lasix; diabetes medications such as DiaBeta and Micronase; Diltiazem (Cardizem); Dipyridamole (Persantine); Insulin; seizure medications such as Depakene; steroids such as Prednisone.

No known food/other substance interactions.

Special Cautions

Do not use during last 3 months of pregnancy, unless (g specifically prescribed by a doctor. May cause problems in the fetus and complications during delivery. May appear in breast milk, could affect a nursing infant.

No special precautions apply to seniors.

Consult your doctor before administering to children.

  • Should not be given to children or teenagers for flu symptoms or chicken pox. Aspirin is associated with development of Reye’s syndrome, a rare, life-threatening disorder.
  • Discontinue and call a doctor if you experience a continuous or high fever, severe or persistent sore throat, especially with a high fever, vomiting, and nausea.
  • Tell your doctor before taking Aspirin if you have or had: asthma, bleeding disorders, congestive heart failure, diabetes, glucose-6-phosphate dehydrogenase (G6PD) deficiency, gout, hemophilia, high blood pressure, kidney disease, liver disease, nasal polyps, peptic ulcers, or thyroid disease.
  • Large doses may cause erroneous urine glucose test results.

Note: provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Aspirin side effects, please contact your healthcare provider.