Can You Take Ibuprofen and Metformin Together?

Metformin's FDA label directly studied coadministration with ibuprofen and found no dosing adjustment was required.

InformationalEvidence: High

See the full Ibuprofen page and Metformin page for other reviewed interactions and reference information.

What the interaction means

Metformin's FDA prescribing information includes a pharmacokinetic drug-interaction table (Section 12, Clinical Pharmacology) that lists "Ibuprofen 400 mg" as a coadministered drug studied directly with metformin, reporting geometric mean ratios of 1.05 for AUC and 1.07 for Cmax -- effects the label characterizes as not requiring a dosing adjustment.

Why it may happen

Not applicable; the label reports the studied pharmacokinetic effect was minimal and did not warrant a dosage change.

Practical context

This is a reassuring, informational finding based on a direct pharmacokinetic study named on metformin's own label, rather than a caution. It does not address separate, independent concerns such as NSAIDs' general effect on kidney function, which can matter for metformin clearance in patients with reduced renal function -- anyone with kidney concerns should still discuss regular ibuprofen use with their prescriber.

What the sources say

Last reviewed 2026-08-24

Medical information disclaimer: this information is general and educational. It does not diagnose conditions, prescribe treatment, or determine whether a combination is safe for you personally. Follow your prescription label and ask a pharmacist or clinician before starting, stopping, or combining products. Full disclaimer.

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