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Drug interactions

Epinephrine + Lumefantrine

Severity: Moderate

Epinephrine and Lumefantrine: 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

Lumefantrine can prolong the QT interval, and epinephrine can provoke arrhythmias and lower potassium. Together they may increase the risk of torsades de pointes.

What this interaction means in plain words

Epinephrine and Lumefantrine 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

Additive QT prolongation and proarrhythmic effects.

What to do

Do not withhold epinephrine in emergencies. For non-urgent use, check ECG and correct potassium and magnesium.

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 Epinephrine with Lumefantrine?

MediHelp rates the interaction as moderate. Epinephrine and Lumefantrine 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. Lumefantrine can prolong the QT interval, and epinephrine can provoke arrhythmias and lower potassium. Together they may increase the risk of torsades de pointes.

How serious is the interaction between Epinephrine and Lumefantrine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not withhold epinephrine in emergencies. For non-urgent use, check ECG and correct potassium and magnesium.

What other medicines interact with Epinephrine?

MediHelp also lists interactions of Epinephrine with, for example, Isocarboxazid, Phenelzine, Tranylcypromine. The full list is on the Epinephrine page.

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

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