Drug interactions
Risedronate + Sodium bicarbonate
Severity: Minor
Risedronate and Sodium bicarbonate: 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 sodium bicarbonate raises gastric pH and may reduce risedronate absorption. It may also reduce the efficacy of the bisphosphonate if given close to the dose.
What this interaction means in plain words
Risedronate and Sodium bicarbonate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Risedronate belongs to Musculoskeletal; Sodium bicarbonate belongs to Gastrointestinal Tract.
Why it happens
Antacid-related change in gastric pH and possible complexation reducing risedronate absorption; the effect is not well characterized.
What to do
Take risedronate first, on an empty stomach with plain water, and delay sodium bicarbonate 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
Other interactions of Sodium bicarbonate
- Acetylsalicylic acid + Sodium bicarbonate Moderate
- Alendronate + Sodium bicarbonate Moderate
- Amantadine + Sodium bicarbonate Moderate
- Carbonyl iron + Sodium bicarbonate Moderate
- Cefditoren + Sodium bicarbonate Moderate
- Cefpodoxime + Sodium bicarbonate Moderate
Frequently asked questions
Can I take Risedronate with Sodium bicarbonate?
MediHelp rates the interaction as minor. Risedronate and Sodium bicarbonate 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 sodium bicarbonate raises gastric pH and may reduce risedronate absorption. It may also reduce the efficacy of the bisphosphonate if given close to the dose.
How serious is the interaction between Risedronate and Sodium bicarbonate?
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 sodium bicarbonate 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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