ATC Group: C09DA Angiotensin II antagonists and diuretics

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 C09DA in the ATC hierarchy

Level Code Title
1 C Cardiovascular system
2 C09 Agents acting on the renin-angiotensin system
3 C09D Angiotensin II antagonists, combinations
4 C09DA Angiotensin II antagonists and diuretics

Group C09DA contents

Code Title
C09DA01 Losartan and diuretics
C09DA02 Eprosartan and diuretics
C09DA03 Valsartan and diuretics
C09DA04 Irbesartan and diuretics
C09DA06 Candesartan and diuretics
C09DA07 Telmisartan and diuretics
C09DA08 Olmesartan medoxomil and diuretics
C09DA09

Active ingredients in C09DA

Active Ingredient

The combination of irbesartan and hydrochlorothiazide has an additive antihypertensive effect, reducing blood pressure to a greater degree than either component alone. Irbesartan is a potent, orally active, selective angiotensin-II receptor (AT1 subtype) antagonist. Hydrochlorothiazide is a thiazide diuretic. The combination of hydrochlorothiazide and irbesartan produces dose-related additive reductions in blood pressure across their therapeutic dose ranges.

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