Anatomical Therapeutic Chemical • C03XA • Vasopressin antagonists

A Alimentary tract and metabolism

B Blood and blood forming organs

C Cardiovascular system

C01 Cardiac therapy

C02 Antihypertensives

C03 Diuretics

C03A Low-ceiling diuretics, thiazides

C03B Low-ceiling diuretics, excluding thiazides

C03C High-ceiling diuretics

C03D Potassium-sparing agents

C03E Diuretics and potassium-sparing agents in combination

C03X Other diuretics

C03XA Vasopressin antagonists

C03XA01 tolvaptan

C04 Peripheral vasodilators

C05 Vasoprotectives

C07 Beta blocking agents

C08 Calcium channel blockers

C09 Agents acting on the renin-angiotensin system

C10 Lipid modifying agents

D Dermatologicals

G Genito urinary system and sex hormones

H Systemic hormonal preparations, excluding sex hormones and insulins

J Antiinfectives for systemic use

L Antineoplastic and immunomodulating agents

M Musculo-skeletal system

N Nervous system

P Antiparasitic products, insecticides and repellents

R Respiratory system

S Sensory organs

V Various