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Medicines nalmefene hydrochloride dihydrateQuestion & answer

nalmefene hydrochloride dihydrate · Medicine question

Why must opioid medicines be avoided with nalmefene hydrochloride dihydrate?

iatroX medicinesPublished 21 August 2026Reviewed 21 August 2026

The answer

Answer

Nalmefene blocks opioid receptors, so opioid medicines may not work and withdrawal may be triggered in someone who is opioid-dependent.

Sources for this answer

Selincro 18mg film-coated tabletsemc · SmPC Current selected SmPC · Version 12

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The full medicine guide

nalmefene hydrochloride dihydrate

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