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Drug interactions

Fexinidazole + Fluvoxamine

Severity: Moderate

Fexinidazole and Fluvoxamine: 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 inhibit CYP1A2 and so could raise fluvoxamine levels. Fexinidazole also prolongs the QT interval, and fluvoxamine has a small QT liability, so the pair may increase arrhythmia risk.

What this interaction means in plain words

Fexinidazole and Fluvoxamine 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 may inhibit CYP1A2, and both drugs have additive QT-prolonging potential.

What to do

Check an ECG and electrolytes before and during treatment if the combination is necessary, and monitor for fluvoxamine adverse 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 Fexinidazole with Fluvoxamine?

MediHelp rates the interaction as moderate. Fexinidazole and Fluvoxamine 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 inhibit CYP1A2 and so could raise fluvoxamine levels. Fexinidazole also prolongs the QT interval, and fluvoxamine has a small QT liability, so the pair may increase arrhythmia risk.

How serious is the interaction between Fexinidazole and Fluvoxamine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check an ECG and electrolytes before and during treatment if the combination is necessary, and monitor for fluvoxamine adverse effects.

What other medicines interact with Fluvoxamine?

MediHelp also lists interactions of Fluvoxamine with, for example, Agomelatine, Alosetron, Fezolinetant. The full list is on the Fluvoxamine page.

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

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

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