Oral veterinary compounds used by animals to control ectoparasites and endocrine parasites, including at least one systemic activator, plus one vehicle for which the drug is acceptable. In addition, there are ways to eliminate, control and prevent parasite infections and infections in animals, including by managing the current components to animals in need. Claim 1: a chewable soft veterinary ingredient for the treatment and / or prevention of parasite infection or infection in animals, characterized by (a) (I) at least one formulation of active isozoline (1), wherein:...A3,A8308；A⁵ and A⁶ are independently selected from the group consisting of CR³ and N, provided that at most 3 of A¹,...A3,A8308；A83099a and a8310n； B1,B and B are independently selected from CR2 and N； W is or s is； R: is lease No. c833218331；C₂₋₆ alkenyl,1. C 83228331 asphalt；C₃₋₆ cycloalkyl,C₄₋₇ alkylcycloalkyl or C₄₋₇ cycloalkylalkyl,a. Each substitute is replaced by one or more substitutes selected independently between r8310；Each R2 is an independent h, halogen, tar c832131；C₁₋₆ haloalkyl,C₁₋₆ alkoxy,C₁₋₆ haloalkoxy,C₁₋₆thio alkyl, C₁₋₆thio haloalkyl, C₁₋₆sulfinyl alkyl, C₁₋₆sulfinyl haloalkyl, C₁₋₆sulfonyl alkyl, C₁₋₆sulfonyl haloalkyl, C₁₋₆amino alkyl, C₂₋₆amino dialkyl, C₂₋₄carbonyl alkoxy, -CN or -NO₂ ；Each cubic meter is an independent matrix of H, halogen and c83218c832636；C₁₋₆ haloalkyl,C₃₋₆ cycloalkyl,Halogenated ring 12C₁₋₆ alkoxy,C₁₋₆ haloalkoxy,a. Is crazy forward!R8308es h, c1832131, block 832626；C₂₋₆ alkenyl,1. C 83228331 asphalt；C₃₋₆ cycloalkyl,C83324c83318327a hydraulic oil；C₄₋₇ cycloalkylalkyl,C₂₋₇ alkylcarbonyl or C₂₋₇ alkoxycarbonyl；R⁵ is H, OR¹⁰,1 or 1；or C₁₋₆ alkyl,C₂₋₆ alkenyl,1. C 83228331 asphalt；C₃₋₆ cycloalkyl,C₄₋₇ alkylcycloalkyl or C₄₋₇ cycloalkylalkyl,a. Select one or more substitutes from r83 11 to replace each substitute；O r83088 and r83099 are combined with nitrogen to form a ring containing 2 to 6 carbon atoms, and another atom can be selected among N, s and O gr
