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Drug interactions

Eliglustat + Quinine

Severity: Major

Eliglustat 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

Quinine inhibits CYP2D6 and can raise eliglustat concentrations, with risk of PR, QRS and QT prolongation and arrhythmia. Quinine itself prolongs the QT interval, compounding the risk.

What this interaction means in plain words

Eliglustat 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.

Eliglustat belongs to Miscellaneous; Quinine belongs to Anti Parasitic.

Evidence level: Moderate

Why it happens

CYP2D6 inhibition by quinine increasing eliglustat exposure, with additive QT effects.

What to do

Avoid if possible; if used, reduce the eliglustat dose per labeling and monitor ECG.

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 Eliglustat with Quinine?

MediHelp rates the interaction as major. Eliglustat 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. Quinine inhibits CYP2D6 and can raise eliglustat concentrations, with risk of PR, QRS and QT prolongation and arrhythmia. Quinine itself prolongs the QT interval, compounding the risk.

How serious is the interaction between Eliglustat 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 if possible; if used, reduce the eliglustat dose per labeling and monitor ECG.

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

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