Drug interactions
Minocycline + Sodium picosulfate / magnesium oxide / anhydrous citric acid
Severity: Moderate
Minocycline 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
The magnesium in the bowel preparation can bind oral minocycline in the gut and reduce its absorption. Antibiotics may also disrupt the colonic bacteria needed to convert sodium picosulfate to its active form, which can weaken the bowel-cleansing effect.
What this interaction means in plain words
Minocycline 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
Chelation of minocycline by magnesium cations in the gut, plus antibiotic suppression of colonic flora that activate picosulfate.
What to do
Give minocycline at least 2 hours before or 6 hours after the bowel preparation. Where possible, avoid oral antibiotic therapy during bowel prep and 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 Minocycline
- Acitretin + Minocycline Contraindicated
- Isotretinoin + Minocycline Contraindicated
- Cholera vaccine + Minocycline Major
- Methoxyflurane + Minocycline Major
- Minocycline + Palovarotene Major
- Minocycline + Pexidartinib Major
Frequently asked questions
Can I take Minocycline with Sodium picosulfate / magnesium oxide / anhydrous citric acid?
MediHelp rates the interaction as moderate. Minocycline 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. The magnesium in the bowel preparation can bind oral minocycline in the gut and reduce its absorption. Antibiotics may also disrupt the colonic bacteria needed to convert sodium picosulfate to its active form, which can weaken the bowel-cleansing effect.
How serious is the interaction between Minocycline 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: Give minocycline at least 2 hours before or 6 hours after the bowel preparation. Where possible, avoid oral antibiotic therapy during bowel prep and confirm adequate bowel cleansing before the procedure.
What other medicines interact with Minocycline?
MediHelp also lists interactions of Minocycline with, for example, Acitretin, Isotretinoin, Cholera vaccine. The full list is on the Minocycline page.
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