Drug interactions
Arformoterol + Budesonide-formoterol
Severity: Major
Arformoterol and Budesonide-formoterol: major 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 is the active enantiomer of formoterol, so combining them duplicates long-acting beta-2 agonist therapy. This increases tachycardia, tremor, hypokalemia and QT prolongation risk without added benefit.
What this interaction means in plain words
Arformoterol and Budesonide-formoterol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Arformoterol belongs to Respiratory; Budesonide-formoterol belongs to Respiratory.
Why it happens
Therapeutic duplication with additive beta-2 agonist cardiovascular and metabolic effects.
What to do
Do not use two long-acting beta-2 agonists together; stop one. Monitor heart rate, potassium and ECG if overlap occurred.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Budesonide-formoterol
Other interactions of Arformoterol
Frequently asked questions
Can I take Arformoterol with Budesonide-formoterol?
MediHelp rates the interaction as major. Arformoterol and Budesonide-formoterol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Arformoterol is the active enantiomer of formoterol, so combining them duplicates long-acting beta-2 agonist therapy. This increases tachycardia, tremor, hypokalemia and QT prolongation risk without added benefit.
How serious is the interaction between Arformoterol and Budesonide-formoterol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not use two long-acting beta-2 agonists together; stop one. Monitor heart rate, potassium and ECG if overlap occurred.
What other medicines interact with Budesonide-formoterol?
MediHelp also lists interactions of Budesonide-formoterol with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Budesonide-formoterol page.
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