Drug interactions
Risedronate + Sodium citrate / citric acid
Severity: Minor
Risedronate and Sodium citrate / citric acid: minor 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 citrate-based alkalinizing solutions may reduce the absorption of risedronate if taken together. The effect is not well documented but could reduce the bisphosphonate's efficacy.
What this interaction means in plain words
Risedronate and Sodium citrate / citric acid have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Possible reduction in absorption through changes in gastric pH and complexation; not well established.
What to do
Take risedronate first, on an empty stomach with plain water, and delay oral sodium citrate/citric acid for at least 2 hours.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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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 gluconate + Risedronate Moderate
Frequently asked questions
Can I take Risedronate with Sodium citrate / citric acid?
MediHelp rates the interaction as minor. Risedronate and Sodium citrate / citric acid have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Oral citrate-based alkalinizing solutions may reduce the absorption of risedronate if taken together. The effect is not well documented but could reduce the bisphosphonate's efficacy.
How serious is the interaction between Risedronate and Sodium citrate / citric acid?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Take risedronate first, on an empty stomach with plain water, and delay oral sodium citrate/citric acid for at least 2 hours.
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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