Drug interactions
Deutetrabenazine + Phenelzine
Severity: Contraindicated
Deutetrabenazine and Phenelzine: contraindicated interaction.
Last updated
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.
Summary
Deutetrabenazine is contraindicated with MAO inhibitors per labeling. The combination may cause hypertensive reactions and unpredictable monoamine effects.
What this interaction means in plain words
Deutetrabenazine and Phenelzine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Deutetrabenazine belongs to Central Nervous System; Phenelzine belongs to Central Nervous System.
Why it happens
VMAT2 inhibition alters monoamine storage while MAO inhibition prevents their breakdown, causing unpredictable monoamine and pressor effects.
What to do
Avoid the combination and wait at least 14 days after stopping phenelzine before starting deutetrabenazine. Choose an alternative therapy if an MAOI is required.
What to ask your pharmacist
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Other interactions of Phenelzine
- 5-HTP + Phenelzine Contraindicated
- Amitriptyline + Phenelzine Contraindicated
- Amoxapine + Phenelzine Contraindicated
- Atomoxetine + Phenelzine Contraindicated
- Benzphetamine + Phenelzine Contraindicated
- Brimonidine + Phenelzine Contraindicated
Other interactions of Deutetrabenazine
- Deutetrabenazine + Isocarboxazid Contraindicated
- Deutetrabenazine + Linezolid Contraindicated
- Deutetrabenazine + Rasagiline Contraindicated
- Deutetrabenazine + Safinamide Contraindicated
- Deutetrabenazine + Selegiline Contraindicated
- Deutetrabenazine + Tranylcypromine Contraindicated
Frequently asked questions
Can I take Deutetrabenazine with Phenelzine?
MediHelp rates the interaction as contraindicated. Deutetrabenazine and Phenelzine are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Deutetrabenazine is contraindicated with MAO inhibitors per labeling. The combination may cause hypertensive reactions and unpredictable monoamine effects.
How serious is the interaction between Deutetrabenazine and Phenelzine?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination and wait at least 14 days after stopping phenelzine before starting deutetrabenazine. Choose an alternative therapy if an MAOI is required.
What other medicines interact with Phenelzine?
MediHelp also lists interactions of Phenelzine with, for example, 5-HTP, Amitriptyline, Amoxapine. The full list is on the Phenelzine page.
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