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

 M MUSCULO-SKELETAL SYSTEM

 N NERVOUS SYSTEM

   N01 ANESTHETICS

   N02 ANALGESICS

   N03 ANTIEPILEPTICS

   N04 ANTI-PARKINSON DRUGS

   N05 PSYCHOLEPTICS

   N06 PSYCHOANALEPTICS

     N06A ANTIDEPRESSANTS

       N06AA Non-selective monoamine reuptake inhibitors [DG:DG01730]

       N06AB Selective serotonin reuptake inhibitors

       N06AF Monoamine oxidase inhibitors, non-selective

         N06AF01 Isocarboxazid

         N06AF02 Nialamide

         N06AF03 Phenelzine [DG:DG00948]

         N06AF04 Tranylcypromine [DG:DG00949]

         N06AF05 Iproniazide [DG:DG00950]

         N06AF06 Iproclozide

       N06AG Monoamine oxidase A inhibitors [DG:DG01558]

       N06AX Other antidepressants

     N06B PSYCHOSTIMULANTS, AGENTS USED FOR ADHD AND NOOTROPICS

     N06C PSYCHOLEPTICS AND PSYCHOANALEPTICS IN COMBINATION

     N06D ANTI-DEMENTIA DRUGS

   N07 OTHER NERVOUS SYSTEM DRUGS

 P ANTIPARASITIC PRODUCTS, INSECTICIDES AND REPELLENTS

 R RESPIRATORY SYSTEM

 S SENSORY ORGANS

 V VARIOUS