Drug interactions
Lurbinectedin + Netupitant-palonosetron
Severity: Major
Lurbinectedin 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 is a moderate CYP3A4 inhibitor and can raise lurbinectedin exposure, which is mainly cleared by CYP3A4. Higher exposure may worsen myelosuppression and hepatotoxicity.
What this interaction means in plain words
Lurbinectedin 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.
Lurbinectedin belongs to Oncology; Netupitant-palonosetron belongs to Gastrointestinal Tract.
Why it happens
Netupitant inhibits CYP3A4-mediated metabolism of lurbinectedin.
What to do
Prefer an antiemetic regimen without a CYP3A4 inhibitor, such as a different 5-HT3 antagonist with dexamethasone. If unavoidable, monitor blood counts and liver tests closely and reduce the lurbinectedin dose per labeling.
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 Lurbinectedin
Frequently asked questions
Can I take Lurbinectedin with Netupitant-palonosetron?
MediHelp rates the interaction as major. Lurbinectedin 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 is a moderate CYP3A4 inhibitor and can raise lurbinectedin exposure, which is mainly cleared by CYP3A4. Higher exposure may worsen myelosuppression and hepatotoxicity.
How serious is the interaction between Lurbinectedin 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: Prefer an antiemetic regimen without a CYP3A4 inhibitor, such as a different 5-HT3 antagonist with dexamethasone. If unavoidable, monitor blood counts and liver tests closely and reduce the lurbinectedin dose per labeling.
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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