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Drug interactions

Amlodipine-hydrochlorothiazide-valsartan + Calcium citrate

Severity: Minor

Amlodipine-hydrochlorothiazide-valsartan and Calcium citrate: minor 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

Calcium supplements may modestly reduce the antihypertensive effect of amlodipine. Hydrochlorothiazide lowers urinary calcium excretion, so high-dose calcium can contribute to hypercalcemia.

What this interaction means in plain words

Amlodipine-hydrochlorothiazide-valsartan and Calcium citrate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Evidence level: Low

Why it happens

Higher extracellular calcium partly opposes calcium channel blockade, and thiazides reduce renal calcium excretion.

What to do

Monitor blood pressure and serum calcium during long-term high-dose supplementation.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Amlodipine-hydrochlorothiazide-valsartan with Calcium citrate?

MediHelp rates the interaction as minor. Amlodipine-hydrochlorothiazide-valsartan and Calcium citrate have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Calcium supplements may modestly reduce the antihypertensive effect of amlodipine. Hydrochlorothiazide lowers urinary calcium excretion, so high-dose calcium can contribute to hypercalcemia.

How serious is the interaction between Amlodipine-hydrochlorothiazide-valsartan and Calcium citrate?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure and serum calcium during long-term high-dose supplementation.

What other medicines interact with Amlodipine-hydrochlorothiazide-valsartan?

MediHelp also lists interactions of Amlodipine-hydrochlorothiazide-valsartan with, for example, Aliskiren, Dofetilide, Sparsentan. The full list is on the Amlodipine-hydrochlorothiazide-valsartan page.

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