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Drug interactions

Fingolimod + Quinine

Severity: Major

Fingolimod and Quinine: major 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 slows heart rate and can prolong QT, and quinine also prolongs QT. Together they raise the risk of ventricular arrhythmias including torsades de pointes.

What this interaction means in plain words

Fingolimod and Quinine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Fingolimod belongs to Central Nervous System; Quinine belongs to Anti Parasitic.

Evidence level: Moderate

Why it happens

Additive QT prolongation combined with fingolimod-induced bradycardia.

What to do

Avoid the combination where possible. If unavoidable, monitor ECG, including after fingolimod initiation, and correct electrolytes.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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 Fingolimod with Quinine?

MediHelp rates the interaction as major. Fingolimod and Quinine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Fingolimod slows heart rate and can prolong QT, and quinine also prolongs QT. Together they raise the risk of ventricular arrhythmias including torsades de pointes.

How serious is the interaction between Fingolimod and Quinine?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible. If unavoidable, monitor ECG, including after fingolimod initiation, and correct electrolytes.

What other medicines interact with Quinine?

MediHelp also lists interactions of Quinine with, for example, Arsenic trioxide, Dofetilide, Dronedarone. The full list is on the Quinine 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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