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, EXCL. SEX HORMONES AND INSULINS

 J ANTIINFECTIVES FOR SYSTEMIC USE

 L ANTINEOPLASTIC AND IMMUNOMODULATING AGENTS

   L01 ANTINEOPLASTIC AGENTS

   L02 ENDOCRINE THERAPY

   L03 IMMUNOSTIMULANTS

   L04 IMMUNOSUPPRESSANTS

     L04A IMMUNOSUPPRESSANTS

       L04AA Selective immunosuppressants

         L04AA02 Muromonab-CD3

         L04AA03 Antilymphocyte immunoglobulin (horse)

         L04AA04 Antithymocyte immunoglobulin (rabbit)

         L04AA06 Mycophenolic acid [DG:DG00739]

         L04AA10 Sirolimus

         L04AA13 Leflunomide

         L04AA15 Alefacept

         L04AA18 Everolimus

         L04AA19 Gusperimus [DG:DG00740]

         L04AA21 Efalizumab

         L04AA22 Abetimus

         L04AA23 Natalizumab

         L04AA24 Abatacept

         L04AA25 Eculizumab

         L04AA26 Belimumab

         L04AA27 Fingolimod [DG:DG00741]

         L04AA28 Belatacept

         L04AA29 Tofacitinib [DG:DG00742]

         L04AA31 Teriflunomide

         L04AA32 Apremilast

         L04AA33 Vedolizumab

         L04AA34 Alemtuzumab

         L04AA35 Begelomab

         L04AA36 Ocrelizumab

         L04AA37 Baricitinib

         L04AA38 Ozanimod [DG:DG02827]

         L04AA39 Emapalumab

         L04AA40 Cladribine

       L04AB Tumor necrosis factor alpha (TNF-alpha) inhibitors

       L04AC Interleukin inhibitors

       L04AD Calcineurin inhibitors

       L04AX Other immunosuppressants

 M MUSCULO-SKELETAL SYSTEM

 N NERVOUS SYSTEM

 P ANTIPARASITIC PRODUCTS, INSECTICIDES AND REPELLENTS

 R RESPIRATORY SYSTEM

 S SENSORY ORGANS

 V VARIOUS