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

     N03A ANTIEPILEPTICS

       N03AA Barbiturates and derivatives

       N03AB Hydantoin derivatives

       N03AC Oxazolidine derivatives

       N03AD Succinimide derivatives

       N03AE Benzodiazepine derivatives

       N03AF Carboxamide derivatives

         N03AF01 Carbamazepine

         N03AF02 Oxcarbazepine

         N03AF03 Rufinamide

         N03AF04 Eslicarbazepine [DG:DG00848]

       N03AG Fatty acid derivatives

       N03AX Other antiepileptics

   N04 ANTI-PARKINSON DRUGS

   N05 PSYCHOLEPTICS

   N06 PSYCHOANALEPTICS

   N07 OTHER NERVOUS SYSTEM DRUGS

 P ANTIPARASITIC PRODUCTS, INSECTICIDES AND REPELLENTS

 R RESPIRATORY SYSTEM

 S SENSORY ORGANS

 V VARIOUS