Drug interactions
Eslicarbazepine + Fentanyl transmucosal
Severity: Moderate
Eslicarbazepine and Fentanyl transmucosal: 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 fentanyl exposure, leading to inadequate breakthrough analgesia or withdrawal. Stopping the inducer later may raise fentanyl levels and the risk of respiratory depression.
What this interaction means in plain words
Eslicarbazepine and Fentanyl transmucosal 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.
Why it happens
Induction of CYP3A4 increases the metabolism of fentanyl, including the swallowed portion.
What to do
Monitor analgesic effect and re-titrate the transmucosal fentanyl dose if needed. When eslicarbazepine is discontinued, reduce the dose and monitor for opioid toxicity.
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 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 Fentanyl transmucosal?
MediHelp rates the interaction as moderate. Eslicarbazepine and Fentanyl transmucosal 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 fentanyl exposure, leading to inadequate breakthrough analgesia or withdrawal. Stopping the inducer later may raise fentanyl levels and the risk of respiratory depression.
How serious is the interaction between Eslicarbazepine and Fentanyl transmucosal?
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 analgesic effect and re-titrate the transmucosal fentanyl dose if needed. When eslicarbazepine is discontinued, reduce the dose and monitor for opioid toxicity.
What other medicines interact with Eslicarbazepine?
MediHelp also lists interactions of Eslicarbazepine with, for example, Mavacamten, Rilpivirine, Artemether / lumefantrine. The full list is on the Eslicarbazepine page.
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