Drug interactions
Mobocertinib + Netupitant-palonosetron
Severity: Major
Mobocertinib and Netupitant-palonosetron: 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 may raise mobocertinib concentrations through CYP3A4 inhibition. Mobocertinib causes dose-related QTc prolongation and arrhythmia risk, and palonosetron also has minor QT effects.
What this interaction means in plain words
Mobocertinib and Netupitant-palonosetron 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.
Why it happens
Netupitant inhibits CYP3A4 metabolism of mobocertinib, and QT effects may be additive.
What to do
Use an alternative antiemetic without CYP3A4 inhibition if possible. If it is unavoidable, reduce the mobocertinib dose per labeling and monitor ECG and electrolytes.
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
Frequently asked questions
Can I take Mobocertinib with Netupitant-palonosetron?
MediHelp rates the interaction as major. Mobocertinib and Netupitant-palonosetron 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 may raise mobocertinib concentrations through CYP3A4 inhibition. Mobocertinib causes dose-related QTc prolongation and arrhythmia risk, and palonosetron also has minor QT effects.
How serious is the interaction between Mobocertinib and Netupitant-palonosetron?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use an alternative antiemetic without CYP3A4 inhibition if possible. If it is unavoidable, reduce the mobocertinib dose per labeling and monitor ECG and electrolytes.
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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