Drug interactions
Eslicarbazepine + Quinidine
Severity: Moderate
Eslicarbazepine and Quinidine: 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
Eslicarbazepine is a weak-to-moderate CYP3A4 inducer and may reduce quinidine exposure. This could reduce antiarrhythmic efficacy.
What this interaction means in plain words
Eslicarbazepine and Quinidine 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.
Eslicarbazepine belongs to Central Nervous System; Quinidine belongs to Anti Parasitic.
Why it happens
Induction of CYP3A4 metabolism of quinidine by eslicarbazepine.
What to do
Monitor quinidine levels and ECG when starting or stopping eslicarbazepine and adjust the dose.
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 Quinidine
- Adagrasib + Quinidine Contraindicated
- Arsenic trioxide + Quinidine Contraindicated
- Artemether / lumefantrine + Quinidine Contraindicated
- Chloroquine + Quinidine Contraindicated
- Dofetilide + Quinidine Contraindicated
- Dronedarone + Quinidine Contraindicated
Other interactions of Eslicarbazepine
- Eslicarbazepine + Mavacamten Contraindicated
- Eslicarbazepine + Rilpivirine Contraindicated
- Artemether / lumefantrine + Eslicarbazepine Major
- Avapritinib + Eslicarbazepine Major
- Bedaquiline + Eslicarbazepine Major
- Benzhydrocodone / acetaminophen + Eslicarbazepine Major
Frequently asked questions
Can I take Eslicarbazepine with Quinidine?
MediHelp rates the interaction as moderate. Eslicarbazepine and Quinidine 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. Eslicarbazepine is a weak-to-moderate CYP3A4 inducer and may reduce quinidine exposure. This could reduce antiarrhythmic efficacy.
How serious is the interaction between Eslicarbazepine and Quinidine?
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 quinidine levels and ECG when starting or stopping eslicarbazepine and adjust the dose.
What other medicines interact with Quinidine?
MediHelp also lists interactions of Quinidine with, for example, Adagrasib, Arsenic trioxide, Artemether / lumefantrine. The full list is on the Quinidine page.
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