Ibuprofen Dosage Calculator

Calculate recommended ibuprofen dose for adults and children by age and weight, with OTC and prescription-strength options, daily limits, and contraindication screening.

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Patient Details

090

Single dose range

200–400

mg per dose

Dosing schedule

Frequency

Every 4–6 hours

Max per day

3 doses

Max daily dose

1200 mg

Type

Adult / fixed dose

Important notes

• Take with food, milk, or antacids to reduce stomach upset.

• Avoid combining with other NSAIDs (aspirin, naproxen). Do not use for more than 10 days for pain or 3 days for fever without medical advice.

Medical disclaimer

This is general guidance only. Consult a pharmacist or doctor before use, especially for children, pregnancy, or those with chronic conditions. Do not use alongside other NSAIDs without medical advice.

Also in Medication

Health — Medication

Ibuprofen Dosage Calculator

Ibuprofen is a non-steroidal anti-inflammatory drug (NSAID) used for pain, fever, and inflammation. Correct dosing depends on age and weight, and certain groups — including those with kidney disease, peptic ulcers, or cardiovascular conditions — should avoid it entirely.

Adult and child dosing

Adults and children aged 12 and over typically take 200–400 mg every four to six hours OTC (maximum 1,200 mg per day without medical supervision). Under prescription guidance, doses up to 800 mg four times daily (3,200 mg/day) may be used for inflammatory conditions. Children from 6 months to 11 years use weight-based dosing: 5–10 mg per kilogram every six to eight hours, not exceeding 40 mg/kg/day.

Ibuprofen is not recommended for infants under six months.

Key contraindications

Ibuprofen should be avoided or used with caution in people with: active peptic ulcer disease, severe kidney impairment, heart failure, known NSAID or aspirin allergy, and the third trimester of pregnancy. It interacts with blood thinners, diuretics, and other NSAIDs.

Always take ibuprofen with food or milk to reduce gastrointestinal irritation.

Frequently asked questions

Can I take ibuprofen with acetaminophen?

Yes — ibuprofen and acetaminophen work via different mechanisms, so they can generally be taken together or alternated for better pain control. Always follow dosing intervals for each drug independently.

How long can I use OTC ibuprofen?

Self-medication with OTC ibuprofen is generally recommended for no more than 10 days for pain or 3 days for fever without consulting a doctor.

Is ibuprofen safe during breastfeeding?

Ibuprofen passes into breast milk in small amounts and is generally considered compatible with breastfeeding at OTC doses. Consult your doctor or pharmacist for personalised guidance.

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