Drug interactions
Artemether + Tiotropium-olodaterol
Severity: Moderate
Artemether 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 can prolong the QT interval, and high doses of beta2-agonists such as olodaterol may add to cardiac repolarization effects and cause hypokalemia. Together they may modestly raise the risk of ventricular arrhythmias, particularly in patients with other risk factors. Systemic exposure to inhaled olodaterol is low, so the clinical risk is usually small.
What this interaction means in plain words
Artemether 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 and beta2-mediated hypokalemia and cardiac stimulation.
What to do
Check baseline ECG and correct potassium and magnesium before and during combined use in patients with other QT risk factors. Do not exceed the recommended olodaterol dose.
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 with Tiotropium-olodaterol?
MediHelp rates the interaction as moderate. Artemether 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 can prolong the QT interval, and high doses of beta2-agonists such as olodaterol may add to cardiac repolarization effects and cause hypokalemia. Together they may modestly raise the risk of ventricular arrhythmias, particularly in patients with other risk factors. Systemic exposure to inhaled olodaterol is low, so the clinical risk is usually small.
How serious is the interaction between Artemether 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: Check baseline ECG and correct potassium and magnesium before and during combined use in patients with other QT risk factors. Do not exceed the recommended olodaterol dose.
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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