AspirinOver the counter

Pronounced AS-pir-in

Brand names: Bayer, Ecotrin

Type: Antiplatelet and NSAID pain reliever · All Pain Relief & Fever Medicines

What Aspirin is used for

  • Preventing heart attack and stroke
  • Pain and fever relief
  • After stent placement, combined with other antiplatelet medicines

◆ Kidney note

Like other NSAIDs, it can reduce kidney blood flow, especially in people with kidney disease, heart failure, or dehydration.

Common side effects

  • Stomach upset
  • Heartburn
  • Easy bruising
  • Nausea

Important cautions

  • Raises the risk of stomach and intestinal bleeding, especially combined with other blood thinners or NSAID pain relievers
  • Must not be given to children or teenagers with viral infections because of the risk of Reye syndrome

How it comes

Tablets, chewable tablets, extended-release capsules. This guide lists forms only — it never lists strengths or doses.

Toxicity lists: Aspirin also appears on Medicines That Can Harm the Kidneys.

Related medicines — Pain Relief & Fever Medicines

Condition guides on MedicalVideos.com

Please note: This page is a patient-education summary, not medical advice, and it deliberately contains no doses. Medicines affect everyone differently — always follow your own prescription and talk to your doctor or pharmacist before starting, stopping or changing any medicine.