Drug interactions
Losartan + Sodium sulfate / ?magnesium sulfate / potassium chloride
Severity: Moderate
Losartan and Sodium sulfate / ?magnesium sulfate / potassium chloride: 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
Oral sulfate bowel preparations cause fluid and electrolyte shifts and volume depletion. In patients taking an ARB such as losartan, this can increase the risk of acute kidney injury and electrolyte disturbance. Hypotension is also more likely.
What this interaction means in plain words
Losartan and Sodium sulfate / ?magnesium sulfate / potassium chloride 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
Bowel-prep-induced fluid loss and electrolyte shifts combine with ARB-mediated reduction of glomerular filtration pressure, increasing renal risk.
What to do
Ensure good hydration before and during bowel preparation. Consider withholding losartan on the day of the preparation in high-risk patients and check renal function and electrolytes afterward.
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 Losartan
- Aliskiren + Losartan Contraindicated
- Losartan + Sparsentan Contraindicated
- Amifostine + Losartan Major
- Amiloride + Losartan Major
- Amlodipine-benazepril + Losartan Major
- Amlodipine-hydrochlorothiazide-valsartan + Losartan Major
Frequently asked questions
Can I take Losartan with Sodium sulfate / ?magnesium sulfate / potassium chloride?
MediHelp rates the interaction as moderate. Losartan and Sodium sulfate / ?magnesium sulfate / potassium chloride 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. Oral sulfate bowel preparations cause fluid and electrolyte shifts and volume depletion. In patients taking an ARB such as losartan, this can increase the risk of acute kidney injury and electrolyte disturbance. Hypotension is also more likely.
How serious is the interaction between Losartan and Sodium sulfate / ?magnesium sulfate / potassium chloride?
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 good hydration before and during bowel preparation. Consider withholding losartan on the day of the preparation in high-risk patients and check renal function and electrolytes afterward.
What other medicines interact with Losartan?
MediHelp also lists interactions of Losartan with, for example, Aliskiren, Sparsentan, Amifostine. The full list is on the Losartan page.
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