Drug interactions
Ceftriaxone + Sodium picosulfate / magnesium oxide / anhydrous citric acid
Severity: Moderate
Ceftriaxone and Sodium picosulfate / magnesium oxide / anhydrous citric acid: 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
Sodium picosulfate is a prodrug that requires colonic bacteria to be converted to its active laxative form. Antibacterials can suppress this flora and may lead to a weaker bowel-cleansing effect before colonoscopy.
What this interaction means in plain words
Ceftriaxone and Sodium picosulfate / magnesium oxide / anhydrous citric acid 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
Antibiotic suppression of colonic bacteria reduces conversion of sodium picosulfate to its active metabolite.
What to do
Avoid giving the antibiotic during the bowel preparation period where possible. If the antibiotic is essential, confirm adequate bowel cleansing before the procedure.
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 Ceftriaxone
- Calcium chloride + Ceftriaxone Contraindicated
- Calcium gluconate + Ceftriaxone Contraindicated
- Calcium + Ceftriaxone Contraindicated
- Ceftriaxone + Lactated ringer's Contraindicated
- Ceftriaxone + Ringer's solution Contraindicated
- Calcium acetate + Ceftriaxone Major
Frequently asked questions
Can I take Ceftriaxone with Sodium picosulfate / magnesium oxide / anhydrous citric acid?
MediHelp rates the interaction as moderate. Ceftriaxone and Sodium picosulfate / magnesium oxide / anhydrous citric acid 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. Sodium picosulfate is a prodrug that requires colonic bacteria to be converted to its active laxative form. Antibacterials can suppress this flora and may lead to a weaker bowel-cleansing effect before colonoscopy.
How serious is the interaction between Ceftriaxone and Sodium picosulfate / magnesium oxide / anhydrous citric acid?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid giving the antibiotic during the bowel preparation period where possible. If the antibiotic is essential, confirm adequate bowel cleansing before the procedure.
What other medicines interact with Ceftriaxone?
MediHelp also lists interactions of Ceftriaxone with, for example, Calcium chloride, Calcium gluconate, Calcium. The full list is on the Ceftriaxone page.
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