Drug interactions
Dobutamine + Spironolactone
Severity: Minor
Dobutamine 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
Spironolactone retains potassium while dobutamine, through beta2 stimulation, shifts potassium into cells and can lower serum levels. The net effect on potassium is unpredictable and usually clinically small. It is mostly relevant in acutely ill patients with unstable electrolytes.
What this interaction means in plain words
Dobutamine 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.
Dobutamine belongs to Cardiovascular; Spironolactone belongs to Cardiovascular.
Why it happens
Opposing effects on serum potassium: aldosterone antagonism versus beta2-mediated cellular uptake.
What to do
Monitor serum potassium during dobutamine infusion in patients on 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 Dobutamine
Frequently asked questions
Can I take Dobutamine with Spironolactone?
MediHelp rates the interaction as minor. Dobutamine 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. Spironolactone retains potassium while dobutamine, through beta2 stimulation, shifts potassium into cells and can lower serum levels. The net effect on potassium is unpredictable and usually clinically small. It is mostly relevant in acutely ill patients with unstable electrolytes.
How serious is the interaction between Dobutamine 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 dobutamine infusion in patients on 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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