ORAL COMBINATION OF LUFENURON AND NITENPYRAM AGAINST THUMBS.

摘要

A veterinary flea control composition comprising an amount that is effective against fleas of a combination of a compound of formula (I) in which R 1 is hydrogen, alkyl of 1 to 6 carbon atoms or cycloalkyl of 3 to 7 carbon atoms; R2 is hydrogen, alkyl of 1 to 6 carbon atoms or cycloalkyl of 3 to 7 carbon atoms; R3 is hydrogen or alkyl of 1 to 6 carbon atoms; and A is heterocyclyl that is not substituted or is substituted once or repeatedly by identical or different halogen atoms; and a compound of formula (II) in which X is halogen; X1 is hydrogen or halogen; X2 is hydrogen or halogen; Y is alkyl of 1 to 6 partially or completely halogenated carbon atoms, or alkyl of 1 to 6 completely halogenated carbon atoms that is interrupted by an oxygen atom, or alkenyl of 2 to 6 partially or completely halogenated carbon atoms; Y1 is hydrogen or halogen; Y2 is hydrogen or halogen; Y3 is hydrogen or halogen; Z1 is hydrogen or alkyl of 1 to 3 carbon atoms; and Z2 is hydrogen or alkyl of 1 to 3 carbon atoms; and a physiologically acceptable formulation excipient.