Chlorthalidone

Generic Name
Chlorthalidone
Brand Names
Edarbyclor, Tenoretic, Thalitone
Drug Type
Small Molecule
Chemical Formula
C14H11ClN2O4S
CAS Number
77-36-1
Unique Ingredient Identifier
Q0MQD1073Q
Background

Chlorthalidone is a thiazide-like diuretic used for the treatment of hypertension and for management of edema caused by conditions such as heart failure or renal impairment. Chlorthalidone improves blood pressure and swelling by preventing water absorption from the kidneys through inhibition of the Na+/Cl− symporter in the distal convoluted tubule cells in t...

Indication

Chlorthalidone is indicated in the management of hypertension either as the sole therapeutic agent or to enhance the effect of other antihypertensive drugs in the more severe forms of hypertension.

Chlorthalidone is indicated as adjunctive therapy in edema associated with congestive heart failure, hepatic cirrhosis, and corticosteroid and estrogen therapy....

Associated Conditions
Calcium Nephrolithiasis, Edema, Hypertension
Associated Therapies
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medicalxpress.com
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Study links polygenic scores to hypertension treatment outcomes

A genetic risk score predicts how Black individuals with hypertension respond to chlorthalidone and their likelihood of developing treatment-resistant hypertension. Lower ΔSBP scores correlate with better chlorthalidone response, while higher scores increase the risk of treatment resistance.
jamanetwork.com
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Utility of a Systolic Blood Pressure Polygenic Risk Score With Chlorthalidone Response

A high systolic blood pressure (SBP) polygenic risk score (PRS) was associated with reduced response to chlorthalidone treatment and increased risk for treatment-resistant hypertension in a study of 3745 Black individuals. The lowest SBP PRS quintile showed a 3.5 mm Hg greater reduction in SBP at 6 months compared to the middle quintile. SBP PRS may help personalize hypertension treatment choices.
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