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

     N06B PSYCHOSTIMULANTS, AGENTS USED FOR ADHD AND NOOTROPICS

     N06C PSYCHOLEPTICS AND PSYCHOANALEPTICS IN COMBINATION

     N06D ANTI-DEMENTIA DRUGS

       N06DA Anticholinesterases

         N06DA01 Tacrine [DG:DG00982]

         N06DA02 Donepezil [DG:DG00983]

         N06DA03 Rivastigmine [DG:DG00984]

         N06DA04 Galantamine [DG:DG00985]

         N06DA05 Ipidacrine

         N06DA52 Donepezil and memantine

         N06DA53 Donepezil, memantine and Ginkgo folium

       N06DX Other anti-dementia drugs

   N07 OTHER NERVOUS SYSTEM DRUGS

 P ANTIPARASITIC PRODUCTS, INSECTICIDES AND REPELLENTS

 R RESPIRATORY SYSTEM

 S SENSORY ORGANS

 V VARIOUS