Drug interactions
Artemether / lumefantrine + Tiotropium-olodaterol
Severity: Moderate
Artemether / lumefantrine and Tiotropium-olodaterol: 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/lumefantrine can prolong the QT interval, and beta2-agonists can add to cardiovascular stimulation and lower potassium. The combination may increase the risk of ventricular arrhythmias, especially with electrolyte disturbance or heart disease. Inhaled olodaterol has low systemic exposure, which limits but does not remove the concern.
What this interaction means in plain words
Artemether / lumefantrine and Tiotropium-olodaterol 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 with beta2-agonist induced hypokalemia and cardiac stimulation.
What to do
Obtain an ECG and correct potassium and magnesium abnormalities in patients with cardiac risk factors. Monitor for palpitations or syncope during the antimalarial course.
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 Tiotropium-olodaterol
Frequently asked questions
Can I take Artemether / lumefantrine with Tiotropium-olodaterol?
MediHelp rates the interaction as moderate. Artemether / lumefantrine and Tiotropium-olodaterol 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/lumefantrine can prolong the QT interval, and beta2-agonists can add to cardiovascular stimulation and lower potassium. The combination may increase the risk of ventricular arrhythmias, especially with electrolyte disturbance or heart disease. Inhaled olodaterol has low systemic exposure, which limits but does not remove the concern.
How serious is the interaction between Artemether / lumefantrine and Tiotropium-olodaterol?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Obtain an ECG and correct potassium and magnesium abnormalities in patients with cardiac risk factors. Monitor for palpitations or syncope during the antimalarial course.
What other medicines interact with Tiotropium-olodaterol?
MediHelp also lists interactions of Tiotropium-olodaterol with, for example, Amisulpride, Arformoterol, Arsenic trioxide. The full list is on the Tiotropium-olodaterol page.
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