Drug interactions
Sodium sulfate / potassium sulfate / magnesium sulfate + Tetracycline
Severity: Moderate
Sodium sulfate / potassium sulfate / magnesium sulfate and Tetracycline: 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
Magnesium in this bowel preparation chelates tetracycline in the gut and can reduce its absorption. Rapid bowel transit may further limit absorption, risking subtherapeutic antibiotic levels.
What this interaction means in plain words
Sodium sulfate / potassium sulfate / magnesium sulfate and Tetracycline 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 tetracycline by magnesium and accelerated gastrointestinal transit.
What to do
Take tetracycline at least 2 hours before or 6 hours after each dose of the preparation. Consider delaying antibiotic dosing until bowel preparation is completed.
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 Tetracycline
- Acitretin + Tetracycline Contraindicated
- Methoxyflurane + Tetracycline Contraindicated
- Isotretinoin + Tetracycline Major
- Palovarotene + Tetracycline Major
- Strontium ranelate + Tetracycline Major
- Tetracycline + Tretinoin Major
Frequently asked questions
Can I take Sodium sulfate / potassium sulfate / magnesium sulfate with Tetracycline?
MediHelp rates the interaction as moderate. Sodium sulfate / potassium sulfate / magnesium sulfate and Tetracycline 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. Magnesium in this bowel preparation chelates tetracycline in the gut and can reduce its absorption. Rapid bowel transit may further limit absorption, risking subtherapeutic antibiotic levels.
How serious is the interaction between Sodium sulfate / potassium sulfate / magnesium sulfate and Tetracycline?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Take tetracycline at least 2 hours before or 6 hours after each dose of the preparation. Consider delaying antibiotic dosing until bowel preparation is completed.
What other medicines interact with Tetracycline?
MediHelp also lists interactions of Tetracycline with, for example, Acitretin, Methoxyflurane, Isotretinoin. The full list is on the Tetracycline page.
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