Anatomical Therapeutic Chemical • H03AAN1 • levothyroxine+potassium iodide

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

H01 Pituitary and hypothalamic hormones and analogues

H02 Corticosteroids for systemic use

H03 Thyroid therapy

H03A Thyroid preparations

H03AA Thyroid hormones

H03AA01 levothyroxine

H03AA03 levothyroxine + liothyronine

H03AAN1 levothyroxine + potassium iodide

H03B Antithyroid preparations

H03C Iodine therapy

H04 Pancreatic hormones

H05 Calcium homeostasis

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