Drug interactions
Netupitant / palonosetron + Palbociclib
Severity: Moderate
Netupitant / palonosetron and Palbociclib: moderate 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 may increase palbociclib concentrations. Greater exposure could intensify neutropenia.
What this interaction means in plain words
Netupitant / palonosetron and Palbociclib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Netupitant inhibits CYP3A4, reducing palbociclib clearance.
What to do
Monitor blood counts and reduce the palbociclib dose if neutropenia occurs. Use is generally limited to occasional antiemetic dosing.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Netupitant / palonosetron and Palbociclib, 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 Palbociclib
Frequently asked questions
Can I take Netupitant / palonosetron with Palbociclib?
MediHelp rates the interaction as moderate. Netupitant / palonosetron and Palbociclib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Netupitant is a moderate CYP3A4 inhibitor and may increase palbociclib concentrations. Greater exposure could intensify neutropenia.
How serious is the interaction between Netupitant / palonosetron and Palbociclib?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood counts and reduce the palbociclib dose if neutropenia occurs. Use is generally limited to occasional antiemetic dosing.
What other medicines interact with Palbociclib?
MediHelp also lists interactions of Palbociclib with, for example, Apalutamide, Atazanavir, Carbamazepine. The full list is on the Palbociclib 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.
