Drug interactions
Arformoterol + Propafenone
Severity: Moderate
Arformoterol and Propafenone: 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, can cause hypokalemia, tachycardia and QT prolongation, which may add to propafenone's proarrhythmic potential. Risk is greater in patients with heart disease or electrolyte disturbances.
What this interaction means in plain words
Arformoterol and Propafenone 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; Propafenone belongs to Cardiovascular.
Why it happens
Additive proarrhythmic effects from beta-agonist induced hypokalemia and QT prolongation with propafenone's conduction effects.
What to do
Monitor ECG, heart rate and serum potassium during co-therapy. Correct hypokalemia promptly.
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 Propafenone
- Dofetilide + Propafenone Contraindicated
- Dronedarone + Propafenone Contraindicated
- Nilotinib + Propafenone Contraindicated
- Nirmatrelvir / ritonavir + Propafenone Contraindicated
- Nirmatrelvir + Propafenone Contraindicated
- Pimozide + Propafenone Contraindicated
Other interactions of Arformoterol
Frequently asked questions
Can I take Arformoterol with Propafenone?
MediHelp rates the interaction as moderate. Arformoterol and Propafenone 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, can cause hypokalemia, tachycardia and QT prolongation, which may add to propafenone's proarrhythmic potential. Risk is greater in patients with heart disease or electrolyte disturbances.
How serious is the interaction between Arformoterol and Propafenone?
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 ECG, heart rate and serum potassium during co-therapy. Correct hypokalemia promptly.
What other medicines interact with Propafenone?
MediHelp also lists interactions of Propafenone with, for example, Dofetilide, Dronedarone, Nilotinib. The full list is on the Propafenone page.
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