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Drug interactions

Bupropion + Fexinidazole

Severity: Moderate

Bupropion and Fexinidazole: 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

Fexinidazole may induce CYP2B6, the enzyme that converts bupropion to hydroxybupropion. This may reduce bupropion exposure and its antidepressant or smoking-cessation effect. The fexinidazole course is short, so effects are likely temporary.

What this interaction means in plain words

Bupropion and Fexinidazole 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: Low

Why it happens

Fexinidazole induces CYP2B6, increasing bupropion metabolism.

What to do

Monitor for reduced bupropion response during and shortly after fexinidazole treatment. Consider whether bupropion dosing needs adjusting if symptoms recur.

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 Fexinidazole?

MediHelp rates the interaction as moderate. Bupropion and Fexinidazole 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. Fexinidazole may induce CYP2B6, the enzyme that converts bupropion to hydroxybupropion. This may reduce bupropion exposure and its antidepressant or smoking-cessation effect. The fexinidazole course is short, so effects are likely temporary.

How serious is the interaction between Bupropion and Fexinidazole?

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 bupropion response during and shortly after fexinidazole treatment. Consider whether bupropion dosing needs adjusting if symptoms recur.

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.

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