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ATC code L04 Immunosuppressants is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the WHO for the classification of drugs and other medical products. Subgroup L04 is part of the anatomical group L Antineoplastic and immunomodulating agents.[1]

ATC codes
L Antineoplastic and immunomodulating agents
L01 Antineoplastic agents
L02 Endocrine therapy
L03 Immunostimulants
L04 Immunosuppressants

Codes for veterinary use (ATCvet codes) can be created by placing the letter Q in front of the human ATC code: for example, QL04.[2]

National issues of the ATC classification may include additional codes not present in this list, which follows the WHO version.

L04A ImmunosuppressantsEdit

L04AA Selective immunosuppressantsEdit

L04AA02 Muromonab-CD3
L04AA03 Antilymphocyte immunoglobulin (horse)
L04AA04 Antithymocyte immunoglobulin (rabbit)
L04AA06 Mycophenolic acid
L04AA10 Sirolimus
L04AA13 Leflunomide
L04AA15 Alefacept
L04AA18 Everolimus
L04AA19 Gusperimus
L04AA21 Efalizumab
L04AA22 Abetimus
L04AA23 Natalizumab
L04AA24 Abatacept
L04AA25 Eculizumab
L04AA26 Belimumab
L04AA27 Fingolimod
L04AA28 Belatacept
L04AA29 Tofacitinib
L04AA31 Teriflunomide
L04AA32 Apremilast
L04AA33 Vedolizumab
L04AA34 Alemtuzumab
L04AA35 Begelomab
L04AA36 Ocrelizumab
L04AA37 Baricitinib
L04AA38 Ozanimod
L04AA39 Emapalumab
L04AA40 Cladribine

L04AB Tumor necrosis factor alpha (TNF-α) inhibitorsEdit

L04AB01 Etanercept
L04AB02 Infliximab
L04AB03 Afelimomab
L04AB04 Adalimumab
L04AB05 Certolizumab pegol
L04AB06 Golimumab

L04AC Interleukin inhibitorsEdit

L04AC01 Daclizumab
L04AC02 Basiliximab
L04AC03 Anakinra
L04AC04 Rilonacept
L04AC05 Ustekinumab
L04AC07 Tocilizumab
L04AC08 Canakinumab
L04AC09 Briakinumab
L04AC10 Secukinumab
L04AC11 Siltuximab
L04AC12 Brodalumab
L04AC13 Ixekizumab
L04AC14 Sarilumab
L04AC15 Sirukumab
L04AC16 Guselkumab
L04AC17 Tildrakizumab

L04AD Calcineurin inhibitorsEdit

L04AD01 Ciclosporin
L04AD02 Tacrolimus
L04AD03 Voclosporin

L04AX Other immunosuppressantsEdit

L04AX01 Azathioprine
L04AX02 Thalidomide
L04AX03 Methotrexate
L04AX04 Lenalidomide
L04AX05 Pirfenidone
L04AX06 Pomalidomide


  1. ^ "ATC/DDD Index 2019: code L04". WHO Collaborating Centre for Drug Statistics Methodology.
  2. ^ "ATCvet Index 2019: code QL04". WHO Collaborating Centre for Drug Statistics Methodology.