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Medicines mefenamic acidQuestion & answer

mefenamic acid · Medicine question

What is the approximate plasma half-life of mefenamic acid?

iatroX medicinesPublished 8 November 2026

The answer

Answer

Unconjugated mefenamic acid has an approximate plasma half-life of two hours.

Sources for this answer

Ponstan 250 mg CapsulesChemidex Pharma Ltd · emc · SmPC §5.2 Pharmacokinetic properties · Version 11Document updated 7 February 2025

Sources checked 8 November 2026

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mefenamic acid

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