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Drug interactions

Bupropion-naltrexone + Carbamazepine

Severity: Moderate

Bupropion-naltrexone and Carbamazepine: 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

Carbamazepine induces bupropion metabolism, lowering bupropion exposure and possibly reducing efficacy while altering metabolite levels.

What this interaction means in plain words

Bupropion-naltrexone and Carbamazepine 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.

Bupropion-naltrexone belongs to Miscellaneous; Carbamazepine belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Carbamazepine induces CYP2B6 and other enzymes, increasing bupropion clearance.

What to do

Monitor for reduced efficacy and adjust bupropion dose within labeled maximum if needed.

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 Bupropion-naltrexone with Carbamazepine?

MediHelp rates the interaction as moderate. Bupropion-naltrexone and Carbamazepine 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. Carbamazepine induces bupropion metabolism, lowering bupropion exposure and possibly reducing efficacy while altering metabolite levels.

How serious is the interaction between Bupropion-naltrexone and Carbamazepine?

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 for reduced efficacy and adjust bupropion dose within labeled maximum if needed.

What other medicines interact with Bupropion-naltrexone?

MediHelp also lists interactions of Bupropion-naltrexone with, for example, Hydrocodone, Hydromorphone, Isocarboxazid. The full list is on the Bupropion-naltrexone page.

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