Drug interactions
Calcium carbonate + Spironolactone
Severity: Minor
Calcium carbonate 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 has little clinically meaningful effect on calcium handling and is not known to lower calcium levels in practice. Any change in urinary calcium is small and would not usually affect therapy.
What this interaction means in plain words
Calcium carbonate 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.
Calcium carbonate belongs to Gastrointestinal Tract; Spironolactone belongs to Cardiovascular.
Why it happens
No well-established mechanism; spironolactone may slightly alter urinary calcium excretion.
What to do
No specific action is needed; check serum calcium as part of routine monitoring.
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 Calcium carbonate
Other interactions of Spironolactone
- Amiloride + Spironolactone Contraindicated
- Eplerenone + Spironolactone Contraindicated
- Spironolactone + Triamterene Contraindicated
- Abiraterone + Spironolactone Major
- Aceclofenac + Spironolactone Major
- Acemetacin + Spironolactone Major
Frequently asked questions
Can I take Calcium carbonate with Spironolactone?
MediHelp rates the interaction as minor. Calcium carbonate 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 has little clinically meaningful effect on calcium handling and is not known to lower calcium levels in practice. Any change in urinary calcium is small and would not usually affect therapy.
How serious is the interaction between Calcium carbonate 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: No specific action is needed; check serum calcium as part of routine monitoring.
What other medicines interact with Calcium carbonate?
MediHelp also lists interactions of Calcium carbonate with, for example, Acalabrutinib, Alendronate, Amlodipine-hydrochlorothiazide-valsartan. The full list is on the Calcium carbonate page.
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