Drug interactions
Prednisolone + Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol
Severity: Moderate
Prednisolone and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol: 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
Both prednisolone and bowel preparations can lower serum potassium through different routes. Fluid and electrolyte losses from bowel cleansing may add to corticosteroid-induced potassium wasting, raising arrhythmia risk in vulnerable patients.
What this interaction means in plain words
Prednisolone and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol 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
Additive potassium depletion from corticosteroid renal potassium wasting and gastrointestinal fluid and electrolyte losses.
What to do
Check electrolytes before and after bowel preparation in patients on long-term prednisolone, particularly with heart disease or other hypokalemic drugs. Correct potassium and ensure adequate hydration.
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 Prednisolone
- Bcg vaccine live + Prednisolone Contraindicated
- Measles mumps and rubella vaccine live + Prednisolone Contraindicated
- Measles mumps rubella and varicella vaccine live + Prednisolone Contraindicated
- Measles vaccine + Prednisolone Contraindicated
- Mifepristone + Prednisolone Contraindicated
- Prednisolone + Radium-223 dichloride Contraindicated
Frequently asked questions
Can I take Prednisolone with Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol?
MediHelp rates the interaction as moderate. Prednisolone and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol 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. Both prednisolone and bowel preparations can lower serum potassium through different routes. Fluid and electrolyte losses from bowel cleansing may add to corticosteroid-induced potassium wasting, raising arrhythmia risk in vulnerable patients.
How serious is the interaction between Prednisolone and Sodium sulfate / potassium chloride / magnesium sulfate / polyethylene glycol?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check electrolytes before and after bowel preparation in patients on long-term prednisolone, particularly with heart disease or other hypokalemic drugs. Correct potassium and ensure adequate hydration.
What other medicines interact with Prednisolone?
MediHelp also lists interactions of Prednisolone with, for example, Bcg vaccine live, Measles mumps and rubella vaccine live, Measles mumps rubella and varicella vaccine live. The full list is on the Prednisolone page.
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