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General Sports Medicine

Optimal Dosing of Acetaminophen (Tylenol) and Ibuprofen (Motrin)

Introduction Acetaminophen, also known as Tylenol or Paracetamol, and Ibuprofen, also known as Motrin, are two of the most commonly used and prescribed drugs in the world.

J
John Kiel
Sports Medicine Physician ยท February 12, 2023 ยท 3 min read

Overview

Acetaminophen, also known as Tylenol or Paracetamol, and Ibuprofen, also known as Motrin, are two of the most commonly used and prescribed drugs in the world. The most feared side effect of Acetaminophen is liver failure, however, this rarely occurs with routine use. More common side effects from acetaminophen include nausea and vomiting, constipation in children, pruritus and insomnia.

Symptoms

Ibuprofen and other NSAIDS have a much broader and more concerning side effect profile which can be seen in acute or chronic use. This includes but is not limited to gastrointestinal distress and bleeding, acute and chronic kidney disease, hypertension, cardiovascular and cerebrovascular disease. Acetaminophen is compounded in either 325 mg or 500 mg tablets and is often dosed at either 650 mg or 1000 mg.

Causes and Risk Factors

Max daily dose is 3000 to 4000 mg depending on which resource you are reviewing. Ibuprofen comes in 200, 400, 600 and 800 mg tablets and is prescribed at a variety of doses in that range. Max daily dose of ibuprofen is 2400 to 3200 mg depending on reference material.

Treatment Options

Sports medicine physicians commonly prescribe the two medications and should know how to properly dose them to maximize benefit and minimize side effects and complications. Author Note : This post focuses solely on adult dosing and does not review the well established weight based dosing in pediatric patients. Pain Several studies evaluated the correct analgesic dose of acetaminophen .

Recovery

Better designed studies have suggested there is a difference. The first placebo controlled study was published in 1974 comparing 650 and 1000 mg of acetaminophen for postpartum pain. The authors demonstrated 1000 mg was superior to 650 mg for pain relief.[ref]Hopkinson, J.

When to See a Doctor

If you are experiencing symptoms that may be related to optimal dosing of acetaminophen (tylenol) and ibuprofen (motrin), it is important to see a sports medicine physician. Early evaluation and treatment typically lead to better outcomes. Do not ignore pain or symptoms that are limiting your activity.

*This article is for educational purposes only and does not substitute for professional medical advice. Always consult a qualified healthcare provider.*

General Sports Medicine
J
John Kiel
Sports Medicine Physician
Sports Medicine Review contributor

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