ATC Group: C03A Low-ceiling diuretics, thiazides

The World Health Organization's ATC classification organizes medical drugs based on therapeutic properties, chemical composition, and anatomy. It helps make essential medicines readily available globally and is widely used in the pharmaceutical industry.

Position of C03A in the ATC hierarchy

Level Code Title
1 C Cardiovascular system
2 C03 Diuretics
3 C03A Low-ceiling diuretics, thiazides

Group C03A contents

Code Title
C03AA Thiazides, plain
C03AB Thiazides and potassium in combination
C03AH Thiazides, combinations with psycholeptics and/or analgesics
C03AX Thiazides, combinations with other drugs

Active ingredients in C03A

Active Ingredient Description
Bendroflumethiazide

Bendroflumethiazide inhibits the renal tubular absorption of salt and water by its action at the beginning of the distal convoluted tubule. Sodium and chloride ions are excreted in equivalent proportions.

Chlorothiazide

Chlorothiazide is a diuretic and antihypertensive. Chlorothiazide is indicated as adjunctive therapy in edema associated with congestive heart failure, hepatic cirrhosis, and corticosteroid and estrogen therapy.

Cyclopenthiazide
Hydrochlorothiazide

Hydrochlorothiazide is a diuretic with antihypertensive properties. It acts by inhibiting the renal tubular re-absorption of sodium and chloride ions, which are excreted with an accompanying volume of water. Potassium excretion is also promoted.

Hydroflumethiazide

Hydroflumethiazide is a benzothiadiazine with diuretic and antihypertensive action.

Methyclothiazide
Trichlormethiazide

Related product monographs

Title Information Source Document Type  
AMILORETIC Tablet Health Products Regulatory Authority (ZA) MPI, Generic
BENDROFLUMETHIAZIDE Tablet Medicines & Healthcare Products Regulatory Agency (GB) MPI, EU: SmPC
DIDRALIN Tablet Υπουργείο Υγείας (CY) MPI, EU: SmPC
RIDAQ 12.5 mg Tablet Health Products Regulatory Authority (ZA) MPI, Generic
RIDAQ 25 mg / 50 mg Tablet Health Products Regulatory Authority (ZA) MPI, Generic