Drug interactions
Amitriptyline + Netupitant-palonosetron
Severity: Moderate
Amitriptyline and Netupitant-palonosetron: moderate 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
Serotonin syndrome has been reported when 5-HT3 antagonists are combined with serotonergic antidepressants, although it is uncommon. Amitriptyline also prolongs QT, and netupitant may raise amitriptyline levels through CYP3A4 inhibition.
What this interaction means in plain words
Amitriptyline and Netupitant-palonosetron can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Amitriptyline belongs to Central Nervous System; Netupitant-palonosetron belongs to Gastrointestinal Tract.
Why it happens
Possible additive serotonergic effects, with CYP3A4 inhibition by netupitant increasing amitriptyline exposure.
What to do
Monitor for serotonin syndrome features and anticholinergic or cardiac effects. Consider ECG monitoring in patients with cardiac risk.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Netupitant-palonosetron
- Apomorphine + Netupitant-palonosetron Contraindicated
- Flibanserin + Netupitant-palonosetron Contraindicated
- Apalutamide + Netupitant-palonosetron Major
- Avapritinib + Netupitant-palonosetron Major
- Carbamazepine + Netupitant-palonosetron Major
- Cobimetinib + Netupitant-palonosetron Major
Other interactions of Amitriptyline
- Amitriptyline + Isocarboxazid Contraindicated
- Amitriptyline + Methylene blue Contraindicated
- Amitriptyline + Phenelzine Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amitriptyline + Procarbazine Contraindicated
- Amitriptyline + Safinamide Contraindicated
Frequently asked questions
Can I take Amitriptyline with Netupitant-palonosetron?
MediHelp rates the interaction as moderate. Amitriptyline and Netupitant-palonosetron can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Serotonin syndrome has been reported when 5-HT3 antagonists are combined with serotonergic antidepressants, although it is uncommon. Amitriptyline also prolongs QT, and netupitant may raise amitriptyline levels through CYP3A4 inhibition.
How serious is the interaction between Amitriptyline and Netupitant-palonosetron?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for serotonin syndrome features and anticholinergic or cardiac effects. Consider ECG monitoring in patients with cardiac risk.
What other medicines interact with Netupitant-palonosetron?
MediHelp also lists interactions of Netupitant-palonosetron with, for example, Apomorphine, Flibanserin, Apalutamide. The full list is on the Netupitant-palonosetron page.
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