What is ibuprofen

Last updated: April 1, 2026

Quick Answer: Ibuprofen is a common over-the-counter nonsteroidal anti-inflammatory drug (NSAID) used to reduce pain, fever, and inflammation. It works by blocking the production of prostaglandins that cause pain and swelling.

Key Facts

What is Ibuprofen?

Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) commonly used as an over-the-counter pain reliever and fever reducer. It belongs to the class of drugs known as NSAIDs, which also includes aspirin and naproxen. Ibuprofen works by inhibiting the production of prostaglandins, hormone-like substances in the body that cause inflammation, pain, and fever.

History and Development

Ibuprofen was first synthesized in 1961 by researchers at the Boots pharmaceutical company in Nottingham, United Kingdom. Initially developed as a more effective alternative to aspirin, it was approved for prescription use in the UK in 1969 and became available over-the-counter in 1983. The drug received FDA approval in the United States in 1974 as a prescription medication and later became available over-the-counter in 1984.

Available Forms and Strengths

Ibuprofen is available in multiple formulations to suit different needs and preferences:

Prescription-strength ibuprofen is available in doses of 400 mg, 600 mg, and 800 mg for more severe pain conditions.

Common Uses

Ibuprofen is widely used to treat various conditions:

Dosage and Safety

For adults, the standard over-the-counter dose is 200-400 mg every 4-6 hours, with a maximum of 1,200 mg per day without medical supervision. Prescription strength doses can reach 800 mg per dose. Ibuprofen should be taken with food or milk to minimize stomach irritation. It is not recommended for extended use without consulting a healthcare provider, as long-term use may increase the risk of gastrointestinal and cardiovascular issues.

Precautions and Side Effects

While generally safe when used as directed, ibuprofen can cause side effects including stomach upset, heartburn, dizziness, and headache. Serious side effects are rare but may include allergic reactions, gastrointestinal bleeding, and kidney problems. Individuals with certain medical conditions, pregnant women, and those taking specific medications should consult a healthcare provider before using ibuprofen.

Related Questions

Is ibuprofen safe to use every day?

Regular daily use of ibuprofen is not recommended without medical supervision. Long-term use increases the risk of gastrointestinal issues and cardiovascular problems. For chronic pain, consult a healthcare provider about safer alternatives or appropriate dosing.

What is the difference between ibuprofen and acetaminophen?

Ibuprofen is an NSAID that reduces inflammation and pain, while acetaminophen only reduces pain and fever without anti-inflammatory properties. Ibuprofen may be more effective for inflammatory conditions but carries higher gastrointestinal risks with extended use.

Can children take ibuprofen?

Yes, ibuprofen is available for children in specially formulated liquid suspensions dosed by weight and age. Children should not receive standard adult tablets without medical guidance, and dosing must follow pediatric guidelines carefully.

Sources

  1. Wikipedia - Ibuprofen CC-BY-SA-4.0
  2. MedlinePlus - Ibuprofen Public Domain
  3. FDA - Over-the-Counter Pain Relievers Public Domain