Drug interactions
Neomycin + Sodium picosulfate / magnesium oxide / anhydrous citric acid
Severity: Moderate
Neomycin 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. Oral neomycin suppresses colonic flora and may reduce bowel cleansing effectiveness, which can compromise colonoscopy preparation.
What this interaction means in plain words
Neomycin 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 needed to activate sodium picosulfate.
What to do
Avoid giving oral antibiotics shortly before or with the preparation where possible. If neomycin is part of a bowel preparation regimen, consider a different laxative regimen and confirm adequate cleansing.
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 Neomycin
- Amikacin + Neomycin Major
- Amphotericin b deoxycholate + Neomycin Major
- Capreomycin + Neomycin Major
- Cidofovir + Neomycin Major
- Colistin + Neomycin Major
- Ethacrynic acid + Neomycin Major
Frequently asked questions
Can I take Neomycin with Sodium picosulfate / magnesium oxide / anhydrous citric acid?
MediHelp rates the interaction as moderate. Neomycin 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. Oral neomycin suppresses colonic flora and may reduce bowel cleansing effectiveness, which can compromise colonoscopy preparation.
How serious is the interaction between Neomycin 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 oral antibiotics shortly before or with the preparation where possible. If neomycin is part of a bowel preparation regimen, consider a different laxative regimen and confirm adequate cleansing.
What other medicines interact with Neomycin?
MediHelp also lists interactions of Neomycin with, for example, Amikacin, Amphotericin b deoxycholate, Capreomycin. The full list is on the Neomycin page.
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