Drug interactions
Netupitant-palonosetron + Venetoclax
Severity: Major
Netupitant-palonosetron and Venetoclax: major 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
Netupitant is a moderate CYP3A4 inhibitor and can increase venetoclax exposure. Higher venetoclax levels raise the risk of toxicity such as neutropenia and, in the initiation phase, tumor lysis syndrome.
What this interaction means in plain words
Netupitant-palonosetron and Venetoclax can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Netupitant-palonosetron belongs to Gastrointestinal Tract; Venetoclax belongs to Miscellaneous.
Why it happens
Netupitant inhibits CYP3A4, reducing the first-pass and systemic metabolism of venetoclax.
What to do
Avoid during venetoclax dose initiation and ramp-up if possible, using an antiemetic without CYP3A inhibition. If used, reduce the venetoclax dose by at least 50% per labeling and monitor for neutropenia and tumor lysis.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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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 Venetoclax
- Clarithromycin + Venetoclax Contraindicated
- Itraconazole + Venetoclax Contraindicated
- Ketoconazole + Venetoclax Contraindicated
- Posaconazole + Venetoclax Contraindicated
- Venetoclax + Voriconazole Contraindicated
- Amiodarone + Venetoclax Major
Frequently asked questions
Can I take Netupitant-palonosetron with Venetoclax?
MediHelp rates the interaction as major. Netupitant-palonosetron and Venetoclax can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Netupitant is a moderate CYP3A4 inhibitor and can increase venetoclax exposure. Higher venetoclax levels raise the risk of toxicity such as neutropenia and, in the initiation phase, tumor lysis syndrome.
How serious is the interaction between Netupitant-palonosetron and Venetoclax?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid during venetoclax dose initiation and ramp-up if possible, using an antiemetic without CYP3A inhibition. If used, reduce the venetoclax dose by at least 50% per labeling and monitor for neutropenia and tumor lysis.
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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