Drug interactions
Hydrochlorothiazide-valsartan + Potassium chloride
Severity: Moderate
Hydrochlorothiazide-valsartan and 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
Valsartan decreases potassium excretion and supplemental potassium adds to the load, which may cause hyperkalemia, especially in renal impairment or diabetes. Hydrochlorothiazide partly counteracts this, so the net effect varies.
What this interaction means in plain words
Hydrochlorothiazide-valsartan and 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.
Hydrochlorothiazide-valsartan belongs to Cardiovascular; Potassium chloride belongs to Gastrointestinal Tract.
Why it happens
Aldosterone suppression by ARB reduces potassium excretion; thiazide kaliuresis partly offsets the added potassium.
What to do
Monitor serum potassium and creatinine within the first weeks and periodically thereafter; adjust or stop potassium supplements 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-valsartan
- Aliskiren + Hydrochlorothiazide-valsartan Contraindicated
- Dofetilide + Hydrochlorothiazide-valsartan Contraindicated
- Hydrochlorothiazide-valsartan + Sparsentan Contraindicated
- Aldesleukin + Hydrochlorothiazide-valsartan Major
- Amifostine + Hydrochlorothiazide-valsartan Major
- Amiloride + Hydrochlorothiazide-valsartan Major
Other interactions of Potassium chloride
Frequently asked questions
Can I take Hydrochlorothiazide-valsartan with Potassium chloride?
MediHelp rates the interaction as moderate. Hydrochlorothiazide-valsartan and 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. Valsartan decreases potassium excretion and supplemental potassium adds to the load, which may cause hyperkalemia, especially in renal impairment or diabetes. Hydrochlorothiazide partly counteracts this, so the net effect varies.
How serious is the interaction between Hydrochlorothiazide-valsartan and 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: Monitor serum potassium and creatinine within the first weeks and periodically thereafter; adjust or stop potassium supplements if potassium rises.
What other medicines interact with Hydrochlorothiazide-valsartan?
MediHelp also lists interactions of Hydrochlorothiazide-valsartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Hydrochlorothiazide-valsartan page.
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