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Drug interactions

Bupropion + Citalopram

Severity: Moderate

Bupropion and Citalopram: 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

Bupropion may raise citalopram levels through CYP2D6 inhibition, though CYP2D6 is only a minor pathway for citalopram. Both drugs can also lower seizure threshold.

What this interaction means in plain words

Bupropion and Citalopram 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 belongs to Central Nervous System; Citalopram belongs to Central Nervous System.

Evidence level: Low

Why it happens

Minor CYP2D6 inhibition by bupropion and additive seizure-threshold lowering.

What to do

Use the lowest effective doses and monitor for seizures, QT-related symptoms, and serotonergic effects.

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 with Citalopram?

MediHelp rates the interaction as moderate. Bupropion and Citalopram 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 may raise citalopram levels through CYP2D6 inhibition, though CYP2D6 is only a minor pathway for citalopram. Both drugs can also lower seizure threshold.

How serious is the interaction between Bupropion and Citalopram?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and monitor for seizures, QT-related symptoms, and serotonergic effects.

What other medicines interact with Bupropion?

MediHelp also lists interactions of Bupropion with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Bupropion page.

Full monographs, dosing and an interaction checker in the MediHelp app

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