What is the dosing for Ibuprofen (Motrin)?

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Last updated: April 15, 2025View editorial policy

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From the Guidelines

Motrin (ibuprofen) dosing for adults is 400 to 800 mg every six hours, with a maximal initial dose of 800 mg and a maximal daily dosage of 2.4 g. According to the study published in the American Family Physician in 2002 1, this dosing is recommended for the management of acute migraine headaches. The study provides a comprehensive overview of acute pain management in patients with migraine headaches, including the use of NSAIDs such as ibuprofen.

Key Considerations

  • The maximal initial dose of Motrin is 800 mg, and the maximal daily dosage is 2.4 g 1.
  • Motrin should be avoided in patients with aspirin/NSAID-induced asthma 1.
  • Common adverse reactions to Motrin include dizziness, rash, and GI upset 1.

Special Populations

  • There is no specific dosing information provided for children in the study 1.
  • Patients with certain medical conditions, such as kidney disease or heart conditions, should use Motrin with caution and consult a healthcare provider before use.

Administration

  • Motrin can be taken with food or milk to reduce stomach upset.
  • The medication works by blocking enzymes that produce prostaglandins, chemicals that cause pain and inflammation.
  • Effects typically begin within 30 minutes and last 4-6 hours.

From the FDA Drug Label

DOSAGE AND ADMINISTRATION Carefully consider the potential benefits and risks of ibuprofen tablets and other treatment options before deciding to use ibuprofen tablets. Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals [see WARNINGS] After observing the response to initial therapy with ibuprofen tablets, the dose and frequency should be adjusted to suit an individual patient's needs. Do not exceed 3200 mg total daily dose. Rheumatoid arthritis and osteoarthritis, including flare-ups of chronic disease: Suggested Dosage: 1200 mg to 3200 mg daily (400 mg, 600 mg or 800 mg tid or qid). Mild to moderate pain: 400 mg every 4 to 6 hours as necessary for relief of pain. Dysmenorrhea: For the treatment of dysmenorrhea, beginning with the earliest onset of such pain, ibuprofen tablets should be given in a dose of 400 mg every 4 hours as necessary for the relief of pain.

The dosing for Motrin (ibuprofen) is as follows:

  • Rheumatoid arthritis and osteoarthritis: 1200 mg to 3200 mg daily (400 mg, 600 mg or 800 mg tid or qid) 2
  • Mild to moderate pain: 400 mg every 4 to 6 hours as necessary for relief of pain 2
  • Dysmenorrhea: 400 mg every 4 hours as necessary for the relief of pain 2 Key points:
  • Do not exceed 3200 mg total daily dose
  • Use the lowest effective dose for the shortest duration consistent with individual patient treatment goals
  • The dose should be tailored to each patient, and may be lowered or raised depending on the severity of symptoms 2

From the Research

Motrin Dosing Information

  • Motrin, also known as ibuprofen, is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain, reduce inflammation, and lower fever.
  • The dosing of Motrin can vary depending on the individual's condition, age, and weight, but there is no specific information on dosing in the provided studies 3, 4, 5.
  • However, the studies provide information on the use of ibuprofen in different populations, such as pediatric patients 3 and older patients with multiple comorbidities 4.
  • In the study on pediatric patients, it was found that unintentional exposures to ibuprofen declined among children <6 years during the COVID-19 pandemic, while intentional exposures increased among females 6-17 years 3.
  • In the study on older patients with multiple comorbidities, it was found that adding ibuprofen to standard of care was cost-saving and increased quality-adjusted life expectancy, while incorporating over-the-counter naproxen rather than ibuprofen added fewer quality-adjusted life years and increased costs 4.
  • The study on coprescribing proton-pump inhibitors with NSAIDs discusses the gastrointestinal risks associated with NSAIDs and how PPIs may potentiate these effects, but does not provide specific information on Motrin dosing 5.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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