Drug interactions
Netupitant-palonosetron + Venlafaxine
Severity: Moderate
Netupitant-palonosetron and Venlafaxine: 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
Venlafaxine increases serotonin and norepinephrine, and 5-HT3 antagonists like palonosetron have been associated with serotonin syndrome with such agents. The combination may produce agitation, tremor, sweating, diarrhea and fever. The incidence is low.
What this interaction means in plain words
Netupitant-palonosetron and Venlafaxine 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.
Netupitant-palonosetron belongs to Gastrointestinal Tract; Venlafaxine belongs to Central Nervous System.
Why it happens
Additive serotonergic effects from reuptake inhibition and 5-HT3 antagonism, with a possible minor CYP3A4 contribution.
What to do
Monitor for signs of serotonin syndrome after antiemetic administration, without interrupting venlafaxine routinely. Stop the combination and treat supportively if symptoms appear.
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 Venlafaxine
- Isocarboxazid + Venlafaxine Contraindicated
- Methylene blue + Venlafaxine Contraindicated
- Phenelzine + Venlafaxine Contraindicated
- Procarbazine + Venlafaxine Contraindicated
- Rasagiline + Venlafaxine Contraindicated
- Safinamide + Venlafaxine Contraindicated
Frequently asked questions
Can I take Netupitant-palonosetron with Venlafaxine?
MediHelp rates the interaction as moderate. Netupitant-palonosetron and Venlafaxine 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. Venlafaxine increases serotonin and norepinephrine, and 5-HT3 antagonists like palonosetron have been associated with serotonin syndrome with such agents. The combination may produce agitation, tremor, sweating, diarrhea and fever. The incidence is low.
How serious is the interaction between Netupitant-palonosetron and Venlafaxine?
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 signs of serotonin syndrome after antiemetic administration, without interrupting venlafaxine routinely. Stop the combination and treat supportively if symptoms appear.
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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