CPV code 33691000 designates Antiparasitic products, insecticides and repellents in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
33691000 sits under 33690000 (Various medicinal products) and groups 3 more specific sub-codes. When classifying a tender, choose the narrowest code that still covers the full subject of the contract.