Drug interactions
Artemether / lumefantrine + Trimipramine
Severity: Major
Artemether / lumefantrine and Trimipramine: 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
Both components of artemether/lumefantrine can prolong the QT interval, and trimipramine adds to this. The label advises against combining it with other QT-prolonging drugs because of arrhythmia risk.
What this interaction means in plain words
Artemether / lumefantrine and Trimipramine 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.
Why it happens
Additive QT prolongation; lumefantrine and trimipramine are also both CYP2D6 substrates or inhibitors.
What to do
Avoid if possible. If the combination is necessary, obtain an ECG and correct potassium and magnesium before and during treatment.
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?
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Other interactions of Trimipramine
- Disopyramide + Trimipramine Contraindicated
- Dofetilide + Trimipramine Contraindicated
- Ibutilide + Trimipramine Contraindicated
- Isocarboxazid + Trimipramine Contraindicated
- Pentamidine + Trimipramine Contraindicated
- Phenelzine + Trimipramine Contraindicated
Frequently asked questions
Can I take Artemether / lumefantrine with Trimipramine?
MediHelp rates the interaction as major. Artemether / lumefantrine and Trimipramine 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. Both components of artemether/lumefantrine can prolong the QT interval, and trimipramine adds to this. The label advises against combining it with other QT-prolonging drugs because of arrhythmia risk.
How serious is the interaction between Artemether / lumefantrine and Trimipramine?
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 the combination is necessary, obtain an ECG and correct potassium and magnesium before and during treatment.
What other medicines interact with Trimipramine?
MediHelp also lists interactions of Trimipramine with, for example, Disopyramide, Dofetilide, Ibutilide. The full list is on the Trimipramine page.
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