Drug interactions
Calcium gluconate + Minocycline
Severity: Moderate
Calcium gluconate and Minocycline: 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 chelate minocycline in the gut and reduce its absorption, with a possible loss of antibacterial effect. Intravenous calcium gluconate does not share this concern.
What this interaction means in plain words
Calcium gluconate and Minocycline 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; Minocycline belongs to Anti Bacterial.
Why it happens
Chelation of minocycline by calcium ions in the gastrointestinal tract reduces absorption.
What to do
Separate oral doses, giving minocycline 2 hours before or 4 hours after calcium. No separation is needed with intravenous calcium.
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?
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Other interactions of Minocycline
- Acitretin + Minocycline Contraindicated
- Isotretinoin + Minocycline Contraindicated
- Cholera vaccine + Minocycline Major
- Methoxyflurane + Minocycline Major
- Minocycline + Palovarotene Major
- Minocycline + Pexidartinib Major
Other interactions of Calcium gluconate
- Calcium gluconate + Ceftriaxone Contraindicated
- Calcium gluconate + Digoxin Major
- Alendronate + Calcium gluconate Moderate
- Amlodipine-atorvastatin + Calcium gluconate Moderate
- Amlodipine-hydrochlorothiazide-valsartan + Calcium gluconate Moderate
- Amlodipine-olmesartan-hydrochlorothiazide + Calcium gluconate Moderate
Frequently asked questions
Can I take Calcium gluconate with Minocycline?
MediHelp rates the interaction as moderate. Calcium gluconate and Minocycline 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 chelate minocycline in the gut and reduce its absorption, with a possible loss of antibacterial effect. Intravenous calcium gluconate does not share this concern.
How serious is the interaction between Calcium gluconate and Minocycline?
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 minocycline 2 hours before or 4 hours after calcium. No separation is needed with intravenous calcium.
What other medicines interact with Minocycline?
MediHelp also lists interactions of Minocycline with, for example, Acitretin, Isotretinoin, Cholera vaccine. The full list is on the Minocycline page.
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