Drug interactions
Propafenone + Salbutamol
Severity: Moderate
Propafenone and Salbutamol: 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
Propafenone can prolong QRS and QT intervals and is proarrhythmic, while salbutamol may provoke tachyarrhythmias and hypokalemia. Combined use could raise the likelihood of ventricular arrhythmias, especially in structural heart disease.
What this interaction means in plain words
Propafenone and Salbutamol 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.
Propafenone belongs to Cardiovascular; Salbutamol belongs to Respiratory.
Why it happens
Additive proarrhythmic effects through conduction slowing, QT prolongation, and beta-agonist-induced hypokalemia.
What to do
Monitor ECG and serum potassium, correcting deficits promptly. Use the lowest effective salbutamol dose and watch for new palpitations.
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 Salbutamol
Other interactions of Propafenone
- Dofetilide + Propafenone Contraindicated
- Dronedarone + Propafenone Contraindicated
- Nilotinib + Propafenone Contraindicated
- Nirmatrelvir / ritonavir + Propafenone Contraindicated
- Nirmatrelvir + Propafenone Contraindicated
- Pimozide + Propafenone Contraindicated
Frequently asked questions
Can I take Propafenone with Salbutamol?
MediHelp rates the interaction as moderate. Propafenone and Salbutamol 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. Propafenone can prolong QRS and QT intervals and is proarrhythmic, while salbutamol may provoke tachyarrhythmias and hypokalemia. Combined use could raise the likelihood of ventricular arrhythmias, especially in structural heart disease.
How serious is the interaction between Propafenone and Salbutamol?
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 and serum potassium, correcting deficits promptly. Use the lowest effective salbutamol dose and watch for new palpitations.
What other medicines interact with Salbutamol?
MediHelp also lists interactions of Salbutamol with, for example, Arsenic trioxide, Carvedilol, Droperidol. The full list is on the Salbutamol page.
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