Drug interactions
Calcium carbonate + Nimodipine
Severity: Minor
Calcium carbonate and Nimodipine: 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
No clinically meaningful effect of antacid-induced gastric pH change on nimodipine exposure has been established. The interaction is largely theoretical.
What this interaction means in plain words
Calcium carbonate and Nimodipine 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; Nimodipine belongs to Cardiovascular.
Why it happens
Proposed pH-dependent absorption change is theoretical and not well established.
What to do
No special action is needed beyond routine blood pressure monitoring during nimodipine therapy.
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 Nimodipine
- Apalutamide + Nimodipine Major
- Carbamazepine + Nimodipine Major
- Ceritinib + Nimodipine Major
- Clarithromycin + Nimodipine Major
- Cobicistat + Nimodipine Major
- Darunavir + Nimodipine Major
Frequently asked questions
Can I take Calcium carbonate with Nimodipine?
MediHelp rates the interaction as minor. Calcium carbonate and Nimodipine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. No clinically meaningful effect of antacid-induced gastric pH change on nimodipine exposure has been established. The interaction is largely theoretical.
How serious is the interaction between Calcium carbonate and Nimodipine?
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 special action is needed beyond routine blood pressure monitoring during nimodipine therapy.
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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