Drug interactions
Hydrochlorothiazide-olmesartan + Potassium citrate
Severity: Moderate
Hydrochlorothiazide-olmesartan and Potassium citrate: 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
Olmesartan reduces aldosterone-mediated potassium excretion, so potassium supplements can cause hyperkalemia, while hydrochlorothiazide tends to lower potassium and partly offsets this. Net potassium effect is unpredictable, and hyperkalemia is more likely in patients with renal impairment or diabetes.
What this interaction means in plain words
Hydrochlorothiazide-olmesartan and Potassium citrate 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.
Hydrochlorothiazide-olmesartan belongs to Cardiovascular; Potassium citrate belongs to Gastrointestinal Tract.
Why it happens
ARB-induced reduction of renal potassium excretion combined with potassium supplementation, partly offset by thiazide-induced potassium loss.
What to do
Check serum potassium and renal function before and shortly after starting potassium citrate, then periodically. Adjust or stop the supplement if potassium rises.
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 Hydrochlorothiazide-olmesartan
- Aliskiren + Hydrochlorothiazide-olmesartan Contraindicated
- Dofetilide + Hydrochlorothiazide-olmesartan Contraindicated
- Hydrochlorothiazide-olmesartan + Sparsentan Contraindicated
- Acemetacin + Hydrochlorothiazide-olmesartan Major
- Amifostine + Hydrochlorothiazide-olmesartan Major
- Amiloride + Hydrochlorothiazide-olmesartan Major
Other interactions of Potassium citrate
Frequently asked questions
Can I take Hydrochlorothiazide-olmesartan with Potassium citrate?
MediHelp rates the interaction as moderate. Hydrochlorothiazide-olmesartan and Potassium citrate 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. Olmesartan reduces aldosterone-mediated potassium excretion, so potassium supplements can cause hyperkalemia, while hydrochlorothiazide tends to lower potassium and partly offsets this. Net potassium effect is unpredictable, and hyperkalemia is more likely in patients with renal impairment or diabetes.
How serious is the interaction between Hydrochlorothiazide-olmesartan and Potassium citrate?
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 serum potassium and renal function before and shortly after starting potassium citrate, then periodically. Adjust or stop the supplement if potassium rises.
What other medicines interact with Hydrochlorothiazide-olmesartan?
MediHelp also lists interactions of Hydrochlorothiazide-olmesartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-olmesartan page.
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