Drug interactions
Istradefylline + Netupitant-palonosetron
Severity: Moderate
Istradefylline and Netupitant-palonosetron: 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
Istradefylline at higher doses can inhibit CYP3A4 and may raise netupitant exposure. Netupitant, as a CYP3A4 inhibitor, may also increase istradefylline levels, which could add to dyskinesia or other adverse effects.
What this interaction means in plain words
Istradefylline and Netupitant-palonosetron 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.
Istradefylline belongs to Central Nervous System; Netupitant-palonosetron belongs to Gastrointestinal Tract.
Why it happens
CYP3A4 inhibition by both drugs, with istradefylline effect being dose dependent.
What to do
Monitor for adverse effects of both drugs; keep istradefylline at the lowest effective dose and watch for worsening dyskinesia.
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?
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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 Istradefylline
Frequently asked questions
Can I take Istradefylline with Netupitant-palonosetron?
MediHelp rates the interaction as moderate. Istradefylline and Netupitant-palonosetron 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. Istradefylline at higher doses can inhibit CYP3A4 and may raise netupitant exposure. Netupitant, as a CYP3A4 inhibitor, may also increase istradefylline levels, which could add to dyskinesia or other adverse effects.
How serious is the interaction between Istradefylline and Netupitant-palonosetron?
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 for adverse effects of both drugs; keep istradefylline at the lowest effective dose and watch for worsening dyskinesia.
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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