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

 P ANTIPARASITIC PRODUCTS, INSECTICIDES AND REPELLENTS

   P01 ANTIPROTOZOALS

   P02 ANTHELMINTICS

   P03 ECTOPARASITICIDES, INCL. SCABICIDES, INSECTICIDES AND REPELLENTS

     P03A ECTOPARASITICIDES, INCL. SCABICIDES

       P03AA Sulfur containing products

         P03AA01 Dixanthogen

         P03AA02 Potassium polysulfide

         P03AA03 Mesulfen

         P03AA04 Disulfiram

         P03AA05 Thiram

         P03AA54 Disulfiram, combinations

       P03AB Chlorine containing products

       P03AC Pyrethrines, incl. synthetic compounds

       P03AX Other ectoparasiticides, incl. scabicides

     P03B INSECTICIDES AND REPELLENTS

 R RESPIRATORY SYSTEM

 S SENSORY ORGANS

 V VARIOUS