Drug interactions
Isoproterenol + Spironolactone
Severity: Minor
Isoproterenol and Spironolactone: 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
Isoproterenol shifts potassium into cells via beta2 stimulation and may lower serum potassium, whereas spironolactone promotes potassium retention. The net effect is unpredictable and usually small.
What this interaction means in plain words
Isoproterenol and Spironolactone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Isoproterenol belongs to Respiratory; Spironolactone belongs to Cardiovascular.
Why it happens
Opposing effects on potassium: beta2-mediated cellular uptake versus aldosterone antagonism.
What to do
Monitor serum potassium during isoproterenol infusion in patients taking spironolactone and correct abnormalities as needed.
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 Spironolactone
- Amiloride + Spironolactone Contraindicated
- Eplerenone + Spironolactone Contraindicated
- Spironolactone + Triamterene Contraindicated
- Abiraterone + Spironolactone Major
- Aceclofenac + Spironolactone Major
- Acemetacin + Spironolactone Major
Other interactions of Isoproterenol
Frequently asked questions
Can I take Isoproterenol with Spironolactone?
MediHelp rates the interaction as minor. Isoproterenol and Spironolactone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Isoproterenol shifts potassium into cells via beta2 stimulation and may lower serum potassium, whereas spironolactone promotes potassium retention. The net effect is unpredictable and usually small.
How serious is the interaction between Isoproterenol and Spironolactone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor serum potassium during isoproterenol infusion in patients taking spironolactone and correct abnormalities as needed.
What other medicines interact with Spironolactone?
MediHelp also lists interactions of Spironolactone with, for example, Amiloride, Eplerenone, Triamterene. The full list is on the Spironolactone page.
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