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Drug interactions

Ceritinib + Chlordiazepoxide

Severity: Moderate

Ceritinib and Chlordiazepoxide: 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

Ceritinib inhibits CYP3A4 and may raise chlordiazepoxide concentrations, increasing and prolonging sedation. The effect is predicted from mechanism rather than well documented for this pair.

What this interaction means in plain words

Ceritinib and Chlordiazepoxide 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.

Ceritinib belongs to Oncology; Chlordiazepoxide belongs to Central Nervous System.

Evidence level: Low

Why it happens

Inhibition of CYP3A4-mediated metabolism of chlordiazepoxide by ceritinib.

What to do

Monitor for oversedation and psychomotor impairment, and reduce the chlordiazepoxide dose if signs of excess effect appear.

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 Ceritinib with Chlordiazepoxide?

MediHelp rates the interaction as moderate. Ceritinib and Chlordiazepoxide 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. Ceritinib inhibits CYP3A4 and may raise chlordiazepoxide concentrations, increasing and prolonging sedation. The effect is predicted from mechanism rather than well documented for this pair.

How serious is the interaction between Ceritinib and Chlordiazepoxide?

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 oversedation and psychomotor impairment, and reduce the chlordiazepoxide dose if signs of excess effect appear.

What other medicines interact with Chlordiazepoxide?

MediHelp also lists interactions of Chlordiazepoxide with, for example, Alfentanil, Alprazolam, Amobarbital. The full list is on the Chlordiazepoxide page.

Full monographs, dosing and an interaction checker in the MediHelp app

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