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Medicines MorphineQuestion & answer

Morphine · Medicine question

How does rifampicin affect morphine blood concentrations?

iatroX medicinesPublished 8 November 2026

The answer

Answer

Rifampicin may reduce blood plasma concentrations of morphine sulfate.

Sources for this answer

Zomorph capsulesEthypharm UK Ltd · emc · SmPC §4.5 Interaction with other medicinal products · Version 18Document updated 14 August 2025

Sources checked 8 November 2026

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Morphine

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