Drug interactions
Artemether + Memantine-donepezil
Severity: Moderate
Artemether and Memantine-donepezil: 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
Artemether may prolong the QT interval, and donepezil has similar effects. Using both can increase the risk of ventricular arrhythmias.
What this interaction means in plain words
Artemether and Memantine-donepezil 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.
Why it happens
Additive QT prolongation.
What to do
Check a baseline ECG and electrolytes and monitor QTc during the short antimalarial course. Consider withholding donepezil during treatment if risk factors are present.
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?
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Other interactions of Memantine-donepezil
- Dronedarone + Memantine-donepezil Contraindicated
- Memantine-donepezil + Thioridazine Contraindicated
- Amantadine + Memantine-donepezil Major
- Amiodarone + Memantine-donepezil Major
- Amisulpride + Memantine-donepezil Major
- Amitriptyline + Memantine-donepezil Major
Frequently asked questions
Can I take Artemether with Memantine-donepezil?
MediHelp rates the interaction as moderate. Artemether and Memantine-donepezil 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. Artemether may prolong the QT interval, and donepezil has similar effects. Using both can increase the risk of ventricular arrhythmias.
How serious is the interaction between Artemether and Memantine-donepezil?
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 a baseline ECG and electrolytes and monitor QTc during the short antimalarial course. Consider withholding donepezil during treatment if risk factors are present.
What other medicines interact with Memantine-donepezil?
MediHelp also lists interactions of Memantine-donepezil with, for example, Dronedarone, Thioridazine, Amantadine. The full list is on the Memantine-donepezil page.
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