Drug interactions
Ertapenem + Sodium picosulfate / magnesium oxide / anhydrous citric acid
Severity: Moderate
Ertapenem 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 needs colonic bacteria to convert it into its active laxative form. A broad-spectrum carbapenem such as ertapenem can suppress colonic flora and may reduce the bowel-cleansing effect before colonoscopy.
What this interaction means in plain words
Ertapenem 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-induced reduction of colonic bacteria impairs conversion of sodium picosulfate to its active metabolite.
What to do
Watch for inadequate bowel preparation in patients on the antibiotic and consider extra preparation or rescheduling if cleansing is poor. Where possible, avoid starting the antibiotic during the preparation window.
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 Ertapenem
- Ertapenem + Valproic acid Contraindicated
- Ertapenem + Typhoid vaccine live Major
- Cholera vaccine + Ertapenem Moderate
- Ertapenem + Microbiota Moderate
- Bcg vaccine live + Ertapenem Minor
- Ertapenem + Probenecid Minor
Frequently asked questions
Can I take Ertapenem with Sodium picosulfate / magnesium oxide / anhydrous citric acid?
MediHelp rates the interaction as moderate. Ertapenem 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 needs colonic bacteria to convert it into its active laxative form. A broad-spectrum carbapenem such as ertapenem can suppress colonic flora and may reduce the bowel-cleansing effect before colonoscopy.
How serious is the interaction between Ertapenem 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: Watch for inadequate bowel preparation in patients on the antibiotic and consider extra preparation or rescheduling if cleansing is poor. Where possible, avoid starting the antibiotic during the preparation window.
What other medicines interact with Ertapenem?
MediHelp also lists interactions of Ertapenem with, for example, Valproic acid, Typhoid vaccine live, Cholera vaccine. The full list is on the Ertapenem page.
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