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Drug interactions

Cefuroxime + Sodium picosulfate / magnesium oxide / anhydrous citric acid

Severity: Moderate

Cefuroxime and Sodium picosulfate / magnesium oxide / anhydrous citric acid: moderate interaction.

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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 must be converted by colonic bacteria to its active laxative form. Antibiotics that disrupt colonic flora may reduce this conversion and give a poorer bowel cleansing before colonoscopy.

What this interaction means in plain words

Cefuroxime 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.

Evidence level: Moderate

Why it happens

Antibiotic-induced alteration of colonic bacteria reduces activation of the picosulfate prodrug.

What to do

Where possible avoid starting oral antibiotics shortly before bowel preparation, or consider a non-prodrug preparation. Check the quality of bowel cleansing at colonoscopy.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Cefuroxime with Sodium picosulfate / magnesium oxide / anhydrous citric acid?

MediHelp rates the interaction as moderate. Cefuroxime 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 must be converted by colonic bacteria to its active laxative form. Antibiotics that disrupt colonic flora may reduce this conversion and give a poorer bowel cleansing before colonoscopy.

How serious is the interaction between Cefuroxime 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: Where possible avoid starting oral antibiotics shortly before bowel preparation, or consider a non-prodrug preparation. Check the quality of bowel cleansing at colonoscopy.

What other medicines interact with Cefuroxime?

MediHelp also lists interactions of Cefuroxime with, for example, Aluminum hydroxide, Amikacin, Bcg vaccine live. The full list is on the Cefuroxime page.

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