Drug interactions
Desvenlafaxine + Palonosetron
Severity: Moderate
Desvenlafaxine and 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 rarely when 5-HT3 antagonists are given with serotonergic antidepressants such as SNRIs. The risk is low but the outcome can be serious.
What this interaction means in plain words
Desvenlafaxine and 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.
Desvenlafaxine belongs to Central Nervous System; Palonosetron belongs to Gastrointestinal Tract.
Why it happens
Possible additive serotonergic effects; causality is not firmly established.
What to do
Monitor for serotonin toxicity signs, particularly after dose changes. Stop the drugs and provide supportive care if it occurs.
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 Palonosetron
- Apomorphine + Palonosetron Contraindicated
- Isocarboxazid + Palonosetron Major
- Palonosetron + Phenelzine Major
- Palonosetron + Tranylcypromine Major
- Almotriptan + Palonosetron Moderate
- Amitriptyline + Palonosetron Moderate
Other interactions of Desvenlafaxine
- Desvenlafaxine + Isocarboxazid Contraindicated
- Desvenlafaxine + Methylene blue Contraindicated
- Desvenlafaxine + Phenelzine Contraindicated
- Desvenlafaxine + Rasagiline Contraindicated
- Desvenlafaxine + Safinamide Contraindicated
- Desvenlafaxine + Selegiline Contraindicated
Frequently asked questions
Can I take Desvenlafaxine with Palonosetron?
MediHelp rates the interaction as moderate. Desvenlafaxine and 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 rarely when 5-HT3 antagonists are given with serotonergic antidepressants such as SNRIs. The risk is low but the outcome can be serious.
How serious is the interaction between Desvenlafaxine and 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 toxicity signs, particularly after dose changes. Stop the drugs and provide supportive care if it occurs.
What other medicines interact with Palonosetron?
MediHelp also lists interactions of Palonosetron with, for example, Apomorphine, Isocarboxazid, Phenelzine. The full list is on the Palonosetron page.
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