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Drug interactions

Bupropion + Propranolol

Severity: Moderate

Bupropion and Propranolol: 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

Propranolol is partly metabolized by CYP2D6, so bupropion may raise its levels. This may cause bradycardia and hypotension, though other pathways limit the effect.

What this interaction means in plain words

Bupropion and Propranolol 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; Propranolol belongs to Cardiovascular.

Evidence level: Low

Why it happens

CYP2D6 inhibition by bupropion reduces propranolol clearance.

What to do

Monitor heart rate and blood pressure and reduce the propranolol dose if excessive beta-blockade occurs.

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 Propranolol?

MediHelp rates the interaction as moderate. Bupropion and Propranolol 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. Propranolol is partly metabolized by CYP2D6, so bupropion may raise its levels. This may cause bradycardia and hypotension, though other pathways limit the effect.

How serious is the interaction between Bupropion and Propranolol?

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 heart rate and blood pressure and reduce the propranolol dose if excessive beta-blockade occurs.

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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