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Drug interactions

Eslicarbazepine + Fentanyl transdermal

Severity: Moderate

Eslicarbazepine and Fentanyl transdermal: 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, with loss of pain control or withdrawal symptoms. After the inducer is withdrawn, fentanyl exposure can climb and cause respiratory depression.

What this interaction means in plain words

Eslicarbazepine and Fentanyl transdermal 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.

Evidence level: Moderate

Why it happens

Induction of CYP3A4 increases the metabolism of fentanyl.

What to do

Monitor pain control and withdrawal signs, and adjust the patch dose if needed. After stopping eslicarbazepine, reduce the dose and monitor 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?

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 Eslicarbazepine with Fentanyl transdermal?

MediHelp rates the interaction as moderate. Eslicarbazepine and Fentanyl transdermal 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, with loss of pain control or withdrawal symptoms. After the inducer is withdrawn, fentanyl exposure can climb and cause respiratory depression.

How serious is the interaction between Eslicarbazepine and Fentanyl transdermal?

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 pain control and withdrawal signs, and adjust the patch dose if needed. After stopping eslicarbazepine, reduce the dose and monitor 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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