Drug interactions
Dexamethasone + Sodium picosulfate / magnesium oxide / anhydrous citric acid
Severity: Moderate
Dexamethasone 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
Bowel preparations cause fluid loss and electrolyte shifts, and corticosteroids can add to potassium loss. Together they may increase the risk of hypokalemia and related arrhythmias.
What this interaction means in plain words
Dexamethasone 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
Additive potassium and fluid loss from osmotic bowel cleansing and corticosteroid mineralocorticoid effect.
What to do
Ensure adequate hydration and check electrolytes, especially potassium, in patients on long-term or high-dose dexamethasone or with cardiac risk. Correct deficits 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 Dexamethasone
- Bcg vaccine live + Dexamethasone Contraindicated
- Dexamethasone + Mifepristone Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexamethasone + Smallpox vaccine live Contraindicated
- Dexamethasone + Varicella virus vaccine live Contraindicated
- Dexamethasone + Yellow fever vaccine Contraindicated
Frequently asked questions
Can I take Dexamethasone with Sodium picosulfate / magnesium oxide / anhydrous citric acid?
MediHelp rates the interaction as moderate. Dexamethasone 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. Bowel preparations cause fluid loss and electrolyte shifts, and corticosteroids can add to potassium loss. Together they may increase the risk of hypokalemia and related arrhythmias.
How serious is the interaction between Dexamethasone 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: Ensure adequate hydration and check electrolytes, especially potassium, in patients on long-term or high-dose dexamethasone or with cardiac risk. Correct deficits before the procedure.
What other medicines interact with Dexamethasone?
MediHelp also lists interactions of Dexamethasone with, for example, Bcg vaccine live, Mifepristone, Rilpivirine. The full list is on the Dexamethasone page.
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