Drug interactions
Mitotane + Netupitant-palonosetron
Severity: Major
Mitotane and Netupitant-palonosetron: major interaction.
Last updated Sources: US FDA label
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
Mitotane is a strong CYP3A4 inducer with a very long half-life, so its effect persists for weeks after stopping. It can substantially lower netupitant concentrations and reduce protection against chemotherapy-induced nausea and vomiting.
What this interaction means in plain words
Mitotane 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.
Mitotane belongs to Oncology; Netupitant-palonosetron belongs to Gastrointestinal Tract.
Why it happens
Mitotane induces CYP3A4, increasing netupitant clearance.
What to do
Avoid netupitant-palonosetron in patients on mitotane and choose an antiemetic regimen not dependent on CYP3A4 exposure, such as other 5-HT3 antagonist with dexamethasone. Monitor for breakthrough emesis.
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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References
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 Mitotane
- Doravirine + Mitotane Contraindicated
- Fostemsavir + Mitotane Contraindicated
- Lorlatinib + Mitotane Contraindicated
- Abiraterone + Mitotane Major
- Apixaban + Mitotane Major
- Aprepitant + Mitotane Major
Frequently asked questions
Can I take Mitotane with Netupitant-palonosetron?
MediHelp rates the interaction as major. Mitotane 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. Mitotane is a strong CYP3A4 inducer with a very long half-life, so its effect persists for weeks after stopping. It can substantially lower netupitant concentrations and reduce protection against chemotherapy-induced nausea and vomiting.
How serious is the interaction between Mitotane 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: Avoid netupitant-palonosetron in patients on mitotane and choose an antiemetic regimen not dependent on CYP3A4 exposure, such as other 5-HT3 antagonist with dexamethasone. Monitor for breakthrough emesis.
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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