Patient info

ATC codes

The ATC (Anatomical Therapeutic Chemical) classification sorts medicines by the organ or system they act on and by their effect and chemical group. It has 5 levels – from the main group, e.g. C Cardiovascular system, down to the active substance. Listed are the groups with UK medicines whose patient leaflet or SPC is on this site, with their number.

A Alimentary tract and metabolism drugs 1,624 medicines

B Blood and blood forming organ drugs 1,013 medicines

C Cardiovascular system drugs 1,712 medicines

D Dermatologicals 411 medicines

G Genito urinary system and sex hormones 815 medicines

H Systemic hormonal preparations, excl. sex hormones and insulins 442 medicines

J Antiinfectives for systemic use 1,393 medicines

L Antineoplastic and immunomodulating agents 1,791 medicines

M Musculo-skeletal system drugs 701 medicines

N Nervous system drugs 4,479 medicines

P Antiparasitic products, insecticides and repellents 82 medicines

R Respiratory system drugs 803 medicines

S Sensory organ drugs 363 medicines

V Various drug classes 338 medicines

Sources: the MHRA product information and the European Medicines Agency (patient leaflets and SPCs), the NHS Dictionary of Medicines and Devices (dm+d), NHS Business Services Authority (ATC codes); ATC/DDD classification: World Health Organization (WHO). Contains public sector information licensed under the Open Government Licence v3.0.