Drug interactions
Olmesartan + Sodium sulfate / potassium sulfate / magnesium sulfate
Severity: Moderate
Olmesartan and Sodium sulfate / potassium sulfate / magnesium sulfate: 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
Sulfate-based bowel preparations cause fluid loss and electrolyte shifts. With olmesartan this increases the risk of volume depletion, hypotension and acute kidney injury.
What this interaction means in plain words
Olmesartan and Sodium sulfate / potassium sulfate / magnesium sulfate 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
Osmotic diarrhea and electrolyte shifts reduce renal perfusion, which is poorly tolerated with angiotensin receptor blockade.
What to do
Ensure adequate hydration before and during preparation and consider holding olmesartan on the day of the procedure in high-risk patients. Check renal function and electrolytes if symptoms develop.
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 Olmesartan
- Aliskiren + Olmesartan Contraindicated
- Olmesartan + Sparsentan Contraindicated
- Aldesleukin + Olmesartan Major
- Amifostine + Olmesartan Major
- Amiloride + Olmesartan Major
- Amlodipine-benazepril + Olmesartan Major
Frequently asked questions
Can I take Olmesartan with Sodium sulfate / potassium sulfate / magnesium sulfate?
MediHelp rates the interaction as moderate. Olmesartan and Sodium sulfate / potassium sulfate / magnesium sulfate 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. Sulfate-based bowel preparations cause fluid loss and electrolyte shifts. With olmesartan this increases the risk of volume depletion, hypotension and acute kidney injury.
How serious is the interaction between Olmesartan and Sodium sulfate / potassium sulfate / magnesium sulfate?
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 before and during preparation and consider holding olmesartan on the day of the procedure in high-risk patients. Check renal function and electrolytes if symptoms develop.
What other medicines interact with Olmesartan?
MediHelp also lists interactions of Olmesartan with, for example, Aliskiren, Sparsentan, Aldesleukin. The full list is on the Olmesartan page.
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