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Drug interactions

Netupitant-palonosetron + Tezacaftor

Severity: Moderate

Netupitant-palonosetron and Tezacaftor: 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 may increase tezacaftor exposure, potentially increasing adverse effects. Labeling recommends adjusting the dosing regimen with moderate CYP3A inhibitors.

What this interaction means in plain words

Netupitant-palonosetron and Tezacaftor 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.

Evidence level: Moderate

Why it happens

Netupitant inhibits CYP3A4, reducing tezacaftor metabolism.

What to do

Adjust the tezacaftor/ivacaftor regimen per product labeling for moderate CYP3A inhibitors. Monitor for adverse effects.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Netupitant-palonosetron with Tezacaftor?

MediHelp rates the interaction as moderate. Netupitant-palonosetron and Tezacaftor 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 may increase tezacaftor exposure, potentially increasing adverse effects. Labeling recommends adjusting the dosing regimen with moderate CYP3A inhibitors.

How serious is the interaction between Netupitant-palonosetron and Tezacaftor?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Adjust the tezacaftor/ivacaftor regimen per product labeling for moderate CYP3A inhibitors. Monitor for adverse effects.

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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