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 [DG:DG01936]

       L04AC Interleukin inhibitors [DG:DG02019]

       L04AD Calcineurin inhibitors [DG:DG03129]

       L04AE Sphingosine-1-phosphate (S1P) receptor modulators

         L04AE01 Fingolimod [DG:DG00741]

         L04AE02 Ozanimod [DG:DG02827]

         L04AE03 Siponimod [DG:DG03018]

         L04AE04 Ponesimod

         L04AE05 Etrasimod [DG:DG02444]

       L04AF Janus-associated kinase (JAK) inhibitors

       L04AG Monoclonal antibodies

       L04AH Mammalian target of rapamycin (mTOR) kinase inhibitors

       L04AJ Complement inhibitors

       L04AK Dihydroorotate dehydrogenase (DHODH) 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