ATC drug classification of Canadian drugs

A - Alimentary tract and metabolism

B - Blood and blood forming organs

C - Cardiovascular system

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