Drug interactions
Maprotiline + Phenelzine
Severity: Contraindicated
Maprotiline 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
Maprotiline, a noradrenergic tetracyclic, combined with the MAOI phenelzine can produce hypertensive crisis, serotonin-like toxicity and severe agitation. Serious reactions may occur.
What this interaction means in plain words
Maprotiline 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.
Maprotiline belongs to Central Nervous System; Phenelzine belongs to Central Nervous System.
Why it happens
MAO inhibition combined with norepinephrine reuptake blockade leads to excess monoamine activity.
What to do
Do not combine; allow at least 14 days after stopping phenelzine before maprotiline and an appropriate interval in reverse.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Maprotiline and Phenelzine, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Maprotiline
- Arsenic trioxide + Maprotiline Contraindicated
- Disopyramide + Maprotiline Contraindicated
- Dofetilide + Maprotiline Contraindicated
- Ibutilide + Maprotiline Contraindicated
- Isocarboxazid + Maprotiline Contraindicated
- Maprotiline + Methylene blue Contraindicated
Other interactions of Phenelzine
- 5-HTP + Phenelzine Contraindicated
- Amitriptyline + Phenelzine Contraindicated
- Amoxapine + Phenelzine Contraindicated
- Atomoxetine + Phenelzine Contraindicated
- Benzphetamine + Phenelzine Contraindicated
- Brimonidine + Phenelzine Contraindicated
Frequently asked questions
Can I take Maprotiline with Phenelzine?
MediHelp rates the interaction as contraindicated. Maprotiline 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. Maprotiline, a noradrenergic tetracyclic, combined with the MAOI phenelzine can produce hypertensive crisis, serotonin-like toxicity and severe agitation. Serious reactions may occur.
How serious is the interaction between Maprotiline 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: Do not combine; allow at least 14 days after stopping phenelzine before maprotiline and an appropriate interval in reverse.
What other medicines interact with Maprotiline?
MediHelp also lists interactions of Maprotiline with, for example, Arsenic trioxide, Disopyramide, Dofetilide. The full list is on the Maprotiline page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
