Drug interactions
Netupitant-palonosetron + Sufentanil sl
Severity: Major
Netupitant-palonosetron and Sufentanil sl: 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 inhibits CYP3A4, which metabolizes sufentanil, so sublingual sufentanil concentrations may rise. This can lead to increased or prolonged opioid effects, including potentially fatal respiratory depression.
What this interaction means in plain words
Netupitant-palonosetron and Sufentanil sl 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-mediated metabolism of sufentanil, raising its plasma concentrations.
What to do
Monitor closely for sedation and respiratory depression for an extended period after netupitant dosing. Reduce the sufentanil dose or use an alternative analgesic if signs of excess opioid effect appear.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Netupitant-palonosetron and Sufentanil sl, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
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 Netupitant-palonosetron with Sufentanil sl?
MediHelp rates the interaction as major. Netupitant-palonosetron and Sufentanil sl 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 inhibits CYP3A4, which metabolizes sufentanil, so sublingual sufentanil concentrations may rise. This can lead to increased or prolonged opioid effects, including potentially fatal respiratory depression.
How serious is the interaction between Netupitant-palonosetron and Sufentanil sl?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor closely for sedation and respiratory depression for an extended period after netupitant dosing. Reduce the sufentanil dose or use an alternative analgesic if signs of excess opioid effect appear.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
