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Level 3
  
P - Antiparasitic products, insecticides and repellentsP02 - AnthelminticsP02C - Antinematodal agents
  
P02CA - Benzimidazole derivativesP02CB - Piperazine and derivativesP02CC - Tetrahydropyrimidine derivativesP02CE - Imidazothiazole derivativesP02CF - AvermectinesP02CX - Other antinematodals
  
 
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