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

     P02B ANTITREMATODALS

     P02C ANTINEMATODAL AGENTS

       P02CA Benzimidazole derivatives

       P02CB Piperazine and derivatives

       P02CC Tetrahydropyrimidine derivatives

       P02CE Imidazothiazole derivatives

         P02CE01 Levamisole [DG:DG01026]

       P02CF Avermectines

       P02CX Other antinematodals

     P02D ANTICESTODALS

   P03 ECTOPARASITICIDES, INCL. SCABICIDES, INSECTICIDES AND REPELLENTS

 R RESPIRATORY SYSTEM

 S SENSORY ORGANS

 V VARIOUS