Anatomical Therapeutic Chemical • N01AF03 • thiopental

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

N01 Anesthetics

N01A Anesthetics, general

N01AA Ethers

N01AB Halogenated hydrocarbons

N01AF Barbiturates, plain

N01AF03 thiopental

N01AG Barbiturates in combination with other drugs

N01AH Opioid anesthetics

N01AX Other general anesthetics

N01B Anesthetics, local

N02 Analgesics

N03 Antiepileptics

N04 Anti-parkinson drugs

N05 Psycholeptics

N06 Psychoanaleptics

N07 Other nervous system drugs

P Antiparasitic products, insecticides and repellents

R Respiratory system

S Sensory organs

V Various