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Drug interactions

Bupropion + Sparsentan

Severity: Moderate

Bupropion and Sparsentan: 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

Sparsentan induces CYP2B6, the main enzyme converting bupropion to hydroxybupropion. Bupropion exposure may fall, which can reduce its antidepressant or smoking-cessation efficacy.

What this interaction means in plain words

Bupropion and Sparsentan 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; Sparsentan belongs to Genitourinary.

Evidence level: Moderate

Why it happens

Induction of CYP2B6 by sparsentan increases the metabolic clearance of bupropion.

What to do

Monitor clinical response to bupropion and consider a dose increase within labeled limits if efficacy is lost. Reassess the dose if sparsentan is discontinued.

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 Sparsentan?

MediHelp rates the interaction as moderate. Bupropion and Sparsentan 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. Sparsentan induces CYP2B6, the main enzyme converting bupropion to hydroxybupropion. Bupropion exposure may fall, which can reduce its antidepressant or smoking-cessation efficacy.

How serious is the interaction between Bupropion and Sparsentan?

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 clinical response to bupropion and consider a dose increase within labeled limits if efficacy is lost. Reassess the dose if sparsentan is discontinued.

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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