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

       L04AB Tumor necrosis factor alpha (TNF-alpha) inhibitors

       L04AC Interleukin inhibitors

       L04AD Calcineurin inhibitors

       L04AX Other immunosuppressants

         L04AX01 Azathioprine [DG:DG00743]

         L04AX02 Thalidomide

         L04AX03 Methotrexate [DG:DG00681]

         L04AX04 Lenalidomide [DG:DG00744]

         L04AX05 Pirfenidone

         L04AX06 Pomalidomide

         L04AX07 Dimethyl fumarate

         L04AX08 Darvadstrocel

 M MUSCULO-SKELETAL SYSTEM

 N NERVOUS SYSTEM

 P ANTIPARASITIC PRODUCTS, INSECTICIDES AND REPELLENTS

 R RESPIRATORY SYSTEM

 S SENSORY ORGANS

 V VARIOUS