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Drug interactions

Arformoterol + Atomoxetine

Severity: Moderate

Arformoterol and Atomoxetine: 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

Arformoterol, a long-acting beta-agonist, may cause tachycardia, hypokalemia and QT prolongation, while atomoxetine raises heart rate and blood pressure. Combined cardiovascular effects are possible, though less likely with inhaled dosing.

What this interaction means in plain words

Arformoterol and Atomoxetine 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.

Arformoterol belongs to Respiratory; Atomoxetine belongs to Central Nervous System.

Evidence level: Low

Why it happens

Additive sympathomimetic cardiovascular effects and potential QT prolongation.

What to do

Monitor heart rate, blood pressure and potassium in patients with cardiovascular disease. Report palpitations or syncope.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Arformoterol with Atomoxetine?

MediHelp rates the interaction as moderate. Arformoterol and Atomoxetine 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. Arformoterol, a long-acting beta-agonist, may cause tachycardia, hypokalemia and QT prolongation, while atomoxetine raises heart rate and blood pressure. Combined cardiovascular effects are possible, though less likely with inhaled dosing.

How serious is the interaction between Arformoterol and Atomoxetine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor heart rate, blood pressure and potassium in patients with cardiovascular disease. Report palpitations or syncope.

What other medicines interact with Atomoxetine?

MediHelp also lists interactions of Atomoxetine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Atomoxetine page.

Full monographs, dosing and an interaction checker in the MediHelp app

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