Drug interactions
Doxepin + Netupitant-palonosetron
Severity: Moderate
Doxepin 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 with 5-HT3 antagonists combined with serotonergic antidepressants. Doxepin has some serotonin reuptake inhibition, so the risk is possible but low.
What this interaction means in plain words
Doxepin 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.
Doxepin belongs to Dermatology; Netupitant-palonosetron belongs to Gastrointestinal Tract.
Why it happens
Possible additive serotonergic effects; mechanism not firmly established.
What to do
Monitor for agitation, tremor, hyperthermia, diarrhea and clonus. Discontinue the agents and give supportive care if serotonin syndrome develops.
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 Doxepin
- Doxepin + Isocarboxazid Contraindicated
- Doxepin + Phenelzine Contraindicated
- Doxepin + Procarbazine Contraindicated
- Doxepin + Safinamide Contraindicated
- Doxepin + Selegiline Contraindicated
- Doxepin + Tranylcypromine Contraindicated
Frequently asked questions
Can I take Doxepin with Netupitant-palonosetron?
MediHelp rates the interaction as moderate. Doxepin 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 with 5-HT3 antagonists combined with serotonergic antidepressants. Doxepin has some serotonin reuptake inhibition, so the risk is possible but low.
How serious is the interaction between Doxepin 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 agitation, tremor, hyperthermia, diarrhea and clonus. Discontinue the agents and give supportive care if serotonin syndrome develops.
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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