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Drug interactions

Clofazimine + Ozanimod

Severity: Moderate

Clofazimine and Ozanimod: 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

Ozanimod may slow heart rate at initiation, while clofazimine prolongs the QT interval. Bradycardia plus QT prolongation can increase the risk of torsades de pointes.

What this interaction means in plain words

Clofazimine and Ozanimod 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.

Clofazimine belongs to Anti Bacterial; Ozanimod belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive effects of ozanimod-related bradycardia and clofazimine-related QT prolongation.

What to do

Obtain an ECG before starting ozanimod and seek cardiology advice before initiating in patients taking clofazimine. Monitor heart rate and QTc afterwards.

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 Clofazimine with Ozanimod?

MediHelp rates the interaction as moderate. Clofazimine and Ozanimod 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. Ozanimod may slow heart rate at initiation, while clofazimine prolongs the QT interval. Bradycardia plus QT prolongation can increase the risk of torsades de pointes.

How serious is the interaction between Clofazimine and Ozanimod?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain an ECG before starting ozanimod and seek cardiology advice before initiating in patients taking clofazimine. Monitor heart rate and QTc afterwards.

What other medicines interact with Clofazimine?

MediHelp also lists interactions of Clofazimine with, for example, Adagrasib, Amisulpride, Azithromycin. The full list is on the Clofazimine page.

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

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