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Drug interactions

Itraconazole + Oxcarbazepine

Severity: Moderate

Itraconazole and Oxcarbazepine: 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

Oxcarbazepine is a weak-to-moderate CYP3A4 inducer and can lower itraconazole concentrations, risking subtherapeutic antifungal exposure. The effect is generally smaller than with carbamazepine.

What this interaction means in plain words

Itraconazole and Oxcarbazepine 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.

Itraconazole belongs to Anti Fungals; Oxcarbazepine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Oxcarbazepine induces CYP3A4, accelerating itraconazole metabolism.

What to do

Monitor clinical response and consider itraconazole trough concentrations; switch to an alternative if levels are low.

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 Itraconazole with Oxcarbazepine?

MediHelp rates the interaction as moderate. Itraconazole and Oxcarbazepine 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. Oxcarbazepine is a weak-to-moderate CYP3A4 inducer and can lower itraconazole concentrations, risking subtherapeutic antifungal exposure. The effect is generally smaller than with carbamazepine.

How serious is the interaction between Itraconazole and Oxcarbazepine?

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 clinical response and consider itraconazole trough concentrations; switch to an alternative if levels are low.

What other medicines interact with Itraconazole?

MediHelp also lists interactions of Itraconazole with, for example, Alfuzosin, Alprazolam, Avanafil. The full list is on the Itraconazole page.

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

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