Drug interactions
Calcium gluconate + Risedronate
Severity: Moderate
Calcium gluconate and Risedronate: 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 salts bind risedronate in the gut and substantially reduce its absorption. This can reduce the bone-protective effect of the bisphosphonate.
What this interaction means in plain words
Calcium gluconate and Risedronate 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; Risedronate belongs to Musculoskeletal.
Why it happens
Chelation of risedronate by divalent calcium cations in the gastrointestinal tract, reducing absorption.
What to do
Take risedronate at least 30 minutes before oral calcium gluconate, on an empty stomach with plain water. Intravenous calcium gluconate is not affected by 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 Risedronate
- Aluminum hydroxide + Risedronate Moderate
- Calcium acetate + Risedronate Moderate
- Calcium carbonate + Risedronate Moderate
- Calcium chloride + Risedronate Moderate
- Calcium citrate + Risedronate Moderate
- Calcium + Risedronate 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 Risedronate?
MediHelp rates the interaction as moderate. Calcium gluconate and Risedronate 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 salts bind risedronate in the gut and substantially reduce its absorption. This can reduce the bone-protective effect of the bisphosphonate.
How serious is the interaction between Calcium gluconate and Risedronate?
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 risedronate at least 30 minutes before oral calcium gluconate, on an empty stomach with plain water. Intravenous calcium gluconate is not affected by this absorption interaction.
What other medicines interact with Risedronate?
MediHelp also lists interactions of Risedronate with, for example, Aluminum hydroxide, Calcium acetate, Calcium carbonate. The full list is on the Risedronate page.
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