Drug interactions
Calcium carbonate + Nadolol
Severity: Minor
Calcium carbonate and Nadolol: 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
Calcium salts given orally at the same time as nadolol may modestly reduce its absorption. This could weaken beta-blockade, although the effect is generally small for nadolol.
What this interaction means in plain words
Calcium carbonate and Nadolol 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; Nadolol belongs to Cardiovascular.
Why it happens
Possible binding or reduced gastrointestinal absorption of nadolol in the presence of calcium; the mechanism is not firmly established.
What to do
Separate doses by about 2 hours if convenient. Monitor heart rate and blood pressure if calcium supplementation is started or stopped.
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 Nadolol
- Acebutolol + Nadolol Major
- Adrenaline-articaine + Nadolol Major
- Albuterol + Nadolol Major
- Amifostine + Nadolol Major
- Amiodarone + Nadolol Major
- Arformoterol + Nadolol Major
Frequently asked questions
Can I take Calcium carbonate with Nadolol?
MediHelp rates the interaction as minor. Calcium carbonate and Nadolol 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 salts given orally at the same time as nadolol may modestly reduce its absorption. This could weaken beta-blockade, although the effect is generally small for nadolol.
How serious is the interaction between Calcium carbonate and Nadolol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Separate doses by about 2 hours if convenient. Monitor heart rate and blood pressure if calcium supplementation is started or stopped.
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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