Drug interactions
Bendroflumethiazide + Salbutamol
Severity: Moderate
Bendroflumethiazide 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
Both drugs lower serum potassium, and their combination can cause clinically significant hypokalemia, particularly with high-dose or nebulised salbutamol. Hypokalemia increases the risk of cardiac arrhythmias and muscle weakness.
What this interaction means in plain words
Bendroflumethiazide 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.
Why it happens
Thiazide-induced renal potassium loss combined with beta-2 agonist-driven intracellular potassium shift.
What to do
Monitor serum potassium, especially during acute asthma or COPD treatment or high-dose salbutamol use, and replace potassium as needed.
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
Frequently asked questions
Can I take Bendroflumethiazide with Salbutamol?
MediHelp rates the interaction as moderate. Bendroflumethiazide 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. Both drugs lower serum potassium, and their combination can cause clinically significant hypokalemia, particularly with high-dose or nebulised salbutamol. Hypokalemia increases the risk of cardiac arrhythmias and muscle weakness.
How serious is the interaction between Bendroflumethiazide 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 serum potassium, especially during acute asthma or COPD treatment or high-dose salbutamol use, and replace potassium as needed.
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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