Drug interactions
Calcium chloride + Etidronate
Severity: Moderate
Calcium chloride 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 chloride can bind etidronate in the gut and reduce its absorption. This may weaken the therapeutic effect of etidronate.
What this interaction means in plain words
Calcium chloride 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.
Why it happens
Divalent calcium cations chelate etidronate in the gastrointestinal tract, forming poorly absorbable complexes.
What to do
Take etidronate on an empty stomach and keep oral calcium products at least 2 hours away from the dose. Parenteral calcium does not share this absorption interaction.
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 citrate + Etidronate Moderate
- Calcium gluconate + Etidronate Moderate
- Calcium + Etidronate Moderate
Frequently asked questions
Can I take Calcium chloride with Etidronate?
MediHelp rates the interaction as moderate. Calcium chloride 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 chloride can bind etidronate in the gut and reduce its absorption. This may weaken the therapeutic effect of etidronate.
How serious is the interaction between Calcium chloride 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: Take etidronate on an empty stomach and keep oral calcium products at least 2 hours away from the dose. Parenteral calcium does not share this absorption interaction.
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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