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Drug interactions

Deutetrabenazine + Fingolimod

Severity: Moderate

Deutetrabenazine and Fingolimod: 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

Fingolimod may cause bradycardia and QT prolongation, and deutetrabenazine can modestly prolong QT, mainly at higher exposures. Together they may increase torsades risk in patients with other risk factors.

What this interaction means in plain words

Deutetrabenazine and Fingolimod 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.

Deutetrabenazine belongs to Central Nervous System; Fingolimod belongs to Central Nervous System.

Evidence level: Low

Why it happens

Possible additive QT prolongation with fingolimod-induced bradycardia.

What to do

Check baseline ECG and electrolytes before combining. Monitor ECG during fingolimod initiation and correct hypokalemia and hypomagnesemia.

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 Deutetrabenazine with Fingolimod?

MediHelp rates the interaction as moderate. Deutetrabenazine and Fingolimod 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. Fingolimod may cause bradycardia and QT prolongation, and deutetrabenazine can modestly prolong QT, mainly at higher exposures. Together they may increase torsades risk in patients with other risk factors.

How serious is the interaction between Deutetrabenazine and Fingolimod?

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 baseline ECG and electrolytes before combining. Monitor ECG during fingolimod initiation and correct hypokalemia and hypomagnesemia.

What other medicines interact with Fingolimod?

MediHelp also lists interactions of Fingolimod with, for example, Adenovirus types 4 and 7 live, Bcg vaccine live, Pimozide. The full list is on the Fingolimod 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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