Drug interactions
Artemether + Primaquine
Severity: Moderate
Artemether and Primaquine: 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 and primaquine can both prolong the QT interval. Used together, as in malaria treatment and radical cure, they may add to the risk of arrhythmia, especially with electrolyte disturbances or other QT-prolonging drugs.
What this interaction means in plain words
Artemether and Primaquine 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 prolongation of cardiac repolarization.
What to do
Check baseline ECG where risk factors exist and correct potassium and magnesium. Avoid adding other QT-prolonging drugs.
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 Primaquine
- Pimozide + Primaquine Contraindicated
- Amiodarone + Primaquine Major
- Amisulpride + Primaquine Major
- Anagrelide + Primaquine Major
- Arsenic trioxide + Primaquine Major
- Asenapine + Primaquine Major
Frequently asked questions
Can I take Artemether with Primaquine?
MediHelp rates the interaction as moderate. Artemether and Primaquine 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 and primaquine can both prolong the QT interval. Used together, as in malaria treatment and radical cure, they may add to the risk of arrhythmia, especially with electrolyte disturbances or other QT-prolonging drugs.
How serious is the interaction between Artemether and Primaquine?
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 baseline ECG where risk factors exist and correct potassium and magnesium. Avoid adding other QT-prolonging drugs.
What other medicines interact with Primaquine?
MediHelp also lists interactions of Primaquine with, for example, Pimozide, Amiodarone, Amisulpride. The full list is on the Primaquine page.
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