Drug interactions
Amiloride + Salbutamol
Severity: Minor
Amiloride and Salbutamol: minor 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
Salbutamol shifts potassium into cells and can lower serum potassium, whereas amiloride retains potassium. The effects are opposing, so the combination is not harmful by itself and may even offset hypokalemia, but potassium can fluctuate unpredictably in patients with renal impairment or high-dose beta-agonist use.
What this interaction means in plain words
Amiloride and Salbutamol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Amiloride belongs to Cardiovascular; Salbutamol belongs to Respiratory.
Why it happens
Beta2-agonist-driven intracellular potassium shift opposes amiloride's inhibition of renal potassium excretion.
What to do
No routine adjustment is needed. Check serum potassium in patients with renal impairment or those receiving high-dose or nebulized salbutamol.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Salbutamol
Other interactions of Amiloride
- Amiloride + Eplerenone Contraindicated
- Amiloride + Spironolactone Contraindicated
- Amiloride + Triamterene Contraindicated
- Aceclofenac + Amiloride Major
- Acemetacin + Amiloride Major
- Amiloride + Amlodipine-benazepril Major
Frequently asked questions
Can I take Amiloride with Salbutamol?
MediHelp rates the interaction as minor. Amiloride and Salbutamol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Salbutamol shifts potassium into cells and can lower serum potassium, whereas amiloride retains potassium. The effects are opposing, so the combination is not harmful by itself and may even offset hypokalemia, but potassium can fluctuate unpredictably in patients with renal impairment or high-dose beta-agonist use.
How serious is the interaction between Amiloride and Salbutamol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine adjustment is needed. Check serum potassium in patients with renal impairment or those receiving high-dose or nebulized salbutamol.
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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