Which medications in the drug class Diuretics, Thiazide are used in the treatment of Hypercalciuria?

Updated: Apr 23, 2019
  • Author: Stephen W Leslie, MD, FACS; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

Diuretics, Thiazide

Thiazide diuretics are used in patients with hypercalciuria that is not adequately controlled with dietary modifications alone. Thiazide diuretics are also used upon evidence of bone demineralization if a patient’s diet includes less than the DRI of calcium.

Thiazides work by increasing calcium reabsorption at the level of the distal renal tubule and, thus, lowering urinary calcium. Hydrochlorothiazide (HCTZ) is the agent most commonly used, but other thiazide or thiazide-type diuretics can be administered, including trichlormethiazide and chlorthalidone.

Despite the common use of thiazides, no long-term clinical trials have been performed documenting their efficacy and safety in children. Parents should be notified of this and understand the risks and benefits before initiating therapy.

Hydrochlorothiazide (Microzide)

HCTZ is the most frequently used thiazide in the reduction of urinary calcium levels.

Chlorthalidone

This agent reduces calcium excretion through direct tubular effects.


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