Drug interactions
Ibandronate + Magnesium hydroxide
Severity: Moderate
Ibandronate and Magnesium hydroxide: 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 ibandronate binds to divalent cations such as magnesium in the gut, forming poorly absorbable complexes. Taking it with magnesium-containing antacids can substantially reduce bisphosphonate absorption and weaken its effect on bone.
What this interaction means in plain words
Ibandronate and Magnesium hydroxide 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.
Ibandronate belongs to Musculoskeletal; Magnesium hydroxide belongs to Gastrointestinal Tract.
Why it happens
Chelation of ibandronate by magnesium in the gastrointestinal tract reduces its absorption.
What to do
Take oral ibandronate on an empty stomach with plain water and wait at least 60 minutes before taking magnesium hydroxide or any other cation-containing product.
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 Magnesium hydroxide
Other interactions of Ibandronate
- Aluminum hydroxide + Ibandronate Moderate
- Calcium acetate + Ibandronate Moderate
- Calcium carbonate + Ibandronate Moderate
- Calcium chloride + Ibandronate Moderate
- Calcium citrate + Ibandronate Moderate
- Calcium gluconate + Ibandronate Moderate
Frequently asked questions
Can I take Ibandronate with Magnesium hydroxide?
MediHelp rates the interaction as moderate. Ibandronate and Magnesium hydroxide 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 ibandronate binds to divalent cations such as magnesium in the gut, forming poorly absorbable complexes. Taking it with magnesium-containing antacids can substantially reduce bisphosphonate absorption and weaken its effect on bone.
How serious is the interaction between Ibandronate and Magnesium hydroxide?
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 oral ibandronate on an empty stomach with plain water and wait at least 60 minutes before taking magnesium hydroxide or any other cation-containing product.
What other medicines interact with Magnesium hydroxide?
MediHelp also lists interactions of Magnesium hydroxide with, for example, Ciprofloxacin, Dolutegravir, Gemifloxacin. The full list is on the Magnesium hydroxide page.
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