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Drug interactions

Calcium gluconate + Gemifloxacin

Severity: Moderate

Calcium gluconate and Gemifloxacin: 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

Oral calcium gluconate may bind gemifloxacin in the gut and lower its absorption, risking subtherapeutic antibiotic concentrations. Intravenous calcium gluconate does not share this absorption issue.

What this interaction means in plain words

Calcium gluconate and Gemifloxacin 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 gluconate belongs to Gastrointestinal Tract; Gemifloxacin belongs to Anti Bacterial.

Evidence level: Moderate

Why it happens

Chelation of gemifloxacin by calcium cations in the gastrointestinal lumen.

What to do

Separate oral doses, giving gemifloxacin at least 2 hours before or 3 hours after calcium gluconate.

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 gluconate with Gemifloxacin?

MediHelp rates the interaction as moderate. Calcium gluconate and Gemifloxacin 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. Oral calcium gluconate may bind gemifloxacin in the gut and lower its absorption, risking subtherapeutic antibiotic concentrations. Intravenous calcium gluconate does not share this absorption issue.

How serious is the interaction between Calcium gluconate and Gemifloxacin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Separate oral doses, giving gemifloxacin at least 2 hours before or 3 hours after calcium gluconate.

What other medicines interact with Gemifloxacin?

MediHelp also lists interactions of Gemifloxacin with, for example, Arsenic trioxide, Dofetilide, Ibutilide. The full list is on the Gemifloxacin page.

Full monographs, dosing and an interaction checker in the MediHelp app

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