Drug interactions
dextromethorphan + phenelzine
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Overview
Serotonin syndrome risk; contraindicated.
Mechanism of action
MAOI + serotonergic cough suppressant.
Clinical management
Contraindicated.
Drug reference
References
Frequently asked questions
Can I take dextromethorphan with phenelzine?
The interaction is rated: Contraindicated. Serotonin syndrome risk; contraindicated.
How serious is the interaction between dextromethorphan and phenelzine?
The interaction is rated: Contraindicated. Evidence level: High.
How is the interaction between dextromethorphan and phenelzine managed?
Contraindicated.
Why do dextromethorphan and phenelzine interact?
MAOI + serotonergic cough suppressant.
Full monographs, dosing and an interaction checker in the MediHelp app
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