Drug interactions
Isavuconazonium + Oxcarbazepine
Severity: Major
Isavuconazonium and Oxcarbazepine: major interaction.
Last updated Sources: Health Canada product monograph
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 may lower isavuconazole concentrations, which could result in failure of antifungal therapy in serious invasive infections.
What this interaction means in plain words
Isavuconazonium and Oxcarbazepine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Isavuconazonium belongs to Anti Fungals; Oxcarbazepine belongs to Central Nervous System.
Why it happens
CYP3A4 induction increases clearance of isavuconazole, the active moiety.
What to do
Avoid the combination if possible, using a non-inducing anticonvulsant. If used, monitor isavuconazole levels and clinical response.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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References
Other interactions of Oxcarbazepine
- Cabotegravir + Oxcarbazepine Contraindicated
- Oxcarbazepine + Rilpivirine Contraindicated
- Artemether / lumefantrine + Oxcarbazepine Major
- Atazanavir + Oxcarbazepine Major
- Benzhydrocodone / acetaminophen + Oxcarbazepine Major
- Bictegravir + Oxcarbazepine Major
Other interactions of Isavuconazonium
- Amobarbital + Isavuconazonium Contraindicated
- Apalutamide + Isavuconazonium Contraindicated
- Carbamazepine + Isavuconazonium Contraindicated
- Cisapride + Isavuconazonium Contraindicated
- Efavirenz + Isavuconazonium Contraindicated
- Enzalutamide + Isavuconazonium Contraindicated
Frequently asked questions
Can I take Isavuconazonium with Oxcarbazepine?
MediHelp rates the interaction as major. Isavuconazonium and Oxcarbazepine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Oxcarbazepine may lower isavuconazole concentrations, which could result in failure of antifungal therapy in serious invasive infections.
How serious is the interaction between Isavuconazonium and Oxcarbazepine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination if possible, using a non-inducing anticonvulsant. If used, monitor isavuconazole levels and clinical response.
What other medicines interact with Oxcarbazepine?
MediHelp also lists interactions of Oxcarbazepine with, for example, Cabotegravir, Rilpivirine, Artemether / lumefantrine. The full list is on the Oxcarbazepine page.
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