Drug interactions
Calcium gluconate + Etidronate
Severity: Moderate
Calcium gluconate and Etidronate: 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 can bind etidronate in the gut and reduce its absorption. The result may be diminished efficacy of the bisphosphonate.
What this interaction means in plain words
Calcium gluconate and Etidronate 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; Etidronate belongs to Musculoskeletal.
Why it happens
Divalent calcium cations chelate etidronate in the gastrointestinal tract, forming poorly absorbable complexes.
What to do
Keep oral calcium gluconate at least 2 hours apart from etidronate, which should be taken fasting. Intravenous calcium gluconate is not affected by this mechanism.
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 Etidronate
- Aluminum hydroxide + Etidronate Moderate
- Calcium acetate + Etidronate Moderate
- Calcium carbonate + Etidronate Moderate
- Calcium chloride + Etidronate Moderate
- Calcium citrate + Etidronate Moderate
- Calcium + Etidronate Moderate
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 Etidronate?
MediHelp rates the interaction as moderate. Calcium gluconate and Etidronate 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 can bind etidronate in the gut and reduce its absorption. The result may be diminished efficacy of the bisphosphonate.
How serious is the interaction between Calcium gluconate and Etidronate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Keep oral calcium gluconate at least 2 hours apart from etidronate, which should be taken fasting. Intravenous calcium gluconate is not affected by this mechanism.
What other medicines interact with Etidronate?
MediHelp also lists interactions of Etidronate with, for example, Aluminum hydroxide, Calcium acetate, Calcium carbonate. The full list is on the Etidronate page.
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