Drug interactions
Eslicarbazepine + Fentanyl intranasal
Severity: Moderate
Eslicarbazepine and Fentanyl intranasal: 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 lower fentanyl concentrations, causing reduced analgesia or withdrawal in opioid-dependent patients. When the inducer is stopped, fentanyl levels can rise and cause respiratory depression.
What this interaction means in plain words
Eslicarbazepine and Fentanyl intranasal 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 hepatic and intestinal metabolism of fentanyl.
What to do
Monitor analgesic response and withdrawal signs, and titrate fentanyl upward if needed. When eslicarbazepine is stopped, reduce the fentanyl dose and watch for sedation and respiratory depression.
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 intranasal?
MediHelp rates the interaction as moderate. Eslicarbazepine and Fentanyl intranasal 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 lower fentanyl concentrations, causing reduced analgesia or withdrawal in opioid-dependent patients. When the inducer is stopped, fentanyl levels can rise and cause respiratory depression.
How serious is the interaction between Eslicarbazepine and Fentanyl intranasal?
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 response and withdrawal signs, and titrate fentanyl upward if needed. When eslicarbazepine is stopped, reduce the fentanyl dose and watch for sedation and respiratory depression.
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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