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Drug interactions

Calcium carbonate + Cefuroxime

Severity: Moderate

Calcium carbonate and Cefuroxime: moderate 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

Cefuroxime axetil absorption falls when gastric pH is raised, which may reduce antibiotic exposure. Clinical failure is possible but not common with spaced dosing.

What this interaction means in plain words

Calcium carbonate and Cefuroxime can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Calcium carbonate belongs to Gastrointestinal Tract; Cefuroxime belongs to Anti Bacterial.

Evidence level: Moderate

Why it happens

Elevated gastric pH reduces absorption of cefuroxime axetil.

What to do

Give cefuroxime axetil with food and separate from calcium carbonate by about 2 hours.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Calcium carbonate with Cefuroxime?

MediHelp rates the interaction as moderate. Calcium carbonate and Cefuroxime can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Cefuroxime axetil absorption falls when gastric pH is raised, which may reduce antibiotic exposure. Clinical failure is possible but not common with spaced dosing.

How serious is the interaction between Calcium carbonate and Cefuroxime?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give cefuroxime axetil with food and separate from calcium carbonate by about 2 hours.

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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