Drug interactions
Arformoterol + Mirtazapine
Severity: Moderate
Arformoterol and Mirtazapine: 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
Both agents can prolong the QT interval, and beta-agonists may also lower serum potassium. Together they may modestly raise the risk of arrhythmia, particularly in patients with other risk factors.
What this interaction means in plain words
Arformoterol and Mirtazapine 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; Mirtazapine belongs to Central Nervous System.
Why it happens
Additive QT prolongation, with beta2-agonist induced hypokalemia and tachycardia adding to the proarrhythmic risk.
What to do
Check baseline ECG and potassium and magnesium in patients with cardiac disease or other QT-prolonging drugs. Monitor for 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?
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Other interactions of Mirtazapine
- Isocarboxazid + Mirtazapine Contraindicated
- Mirtazapine + Phenelzine Contraindicated
- Mirtazapine + Pimozide Contraindicated
- Mirtazapine + Procarbazine Contraindicated
- Mirtazapine + Rasagiline Contraindicated
- Mirtazapine + Selegiline Contraindicated
Other interactions of Arformoterol
Frequently asked questions
Can I take Arformoterol with Mirtazapine?
MediHelp rates the interaction as moderate. Arformoterol and Mirtazapine 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. Both agents can prolong the QT interval, and beta-agonists may also lower serum potassium. Together they may modestly raise the risk of arrhythmia, particularly in patients with other risk factors.
How serious is the interaction between Arformoterol and Mirtazapine?
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 potassium and magnesium in patients with cardiac disease or other QT-prolonging drugs. Monitor for palpitations or syncope.
What other medicines interact with Mirtazapine?
MediHelp also lists interactions of Mirtazapine with, for example, Isocarboxazid, Phenelzine, Pimozide. The full list is on the Mirtazapine page.
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