Oral combination of lufenuron and nitenpyram against fleas

A - Human Necessities – 01 – N

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A01N 47/34 (2006.01) A01N 43/40 (2006.01)

Patent

CA 2345132

A veterinary preparation for fleas is described, which consists of an amount that is effective against fleas of a combination of a compound of formula (I), wherein R1 is hydrogen, C1-C6-alkyl or C3-C7-cycloalkyl; R2 is hydrogen, C1-C6- alkyl or C3-C7-cycloalkyl; R3 is hydrogen or C1-C6-alkyl; and A is heterocycly which is unsubstituted or substituted once or repeatedly by identical or different halogen atoms; and a compound of formula (II), wherein X is halogen, X1 is hydrogen or halogen; X2 is hydrogen or halogen; Y is partially or completely halogenated C1-C6-alkoxy, or partially or completely halogenated C1- C6-alkoxy which is interrupted by one oxygen atom, or partially or completely halogenated C2-C6-alkenyl; Y1 is hydrogen or halogen; Y2 is hydrogen or halogen; Y3 is hydrogen or halogen; Z1 is hydrogen or C1-C3-alkyl; and Z2 is hydrogen or C1-C3-alkyl; and a physiologically acceptable formulation excipient.

L'invention porte sur une préparation vétérinaire pour les puces qui comprend une quantité efficace, pour éliminer les puces, d'une combinaison d'un composé de la formule (I) dans laquelle R¿1? est un hydrogène, C¿1?-C¿6?-alkyl ou C¿3?-C¿7?-cycloalkyl; R¿2? est un hydrogène, C¿1?-C¿6?-alkyl ou C¿3?-C¿7?-cycloalkyl; R¿3? est un hydrogène ou C¿1?-C¿6?-alkyl; et A est un hétérocycly qui est non substitué ou substitué une seule fois ou régulièrement par des atomes d'halogène identiques ou différents; et un composé de la formule (II) dans laquelle X est un halogène, X¿1? est un hydrogène ou un halogène; X¿2? est un hydrogène ou un halogène; Y est un C¿1?-C¿6?-alkoxy partiellement ou totalement halogéné, ou un C¿1?-C¿6?-alkoxy partiellement ou totalement halogéné qui est interrompu par un atome d'oxygène, ou un C¿2?-C¿6?-alcényl partiellement ou totalement halogéné; Y¿1? est un hydrogène ou un halogène; Y¿2? est un hydrogène ou un halogène; Y¿3? est un hydrogène ou un halogène; Z¿1? est un hydrogène ou C¿1?-C¿3?; et Z¿2? est un hydrogène ou C¿1?-C¿3?-alkyl; et un excipient de formulation physiologiquement acceptable.

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