NEW VERMIFUGE

摘要

PROBLEM TO BE SOLVED: To provide a new endoparasite controlling agent exhibiting excellent control effects on endoparasites of homoiothermal animals with a low dose.;SOLUTION: The new endoparasite controlling agent contains an acylhydrazone derivative represented by formula (I) {wherein, R₁ represents alkyl, alkenyl, alkynyl, phenyl or heterocycle; R₂ represents phenyl or heterocycle; and R₃ represents hydrogen atom, alkyl, carbonyl or NR₄R₅ (wherein, R₄ and R₅ represent each hydrogen atom or alkyl which may be substituted with halogen)} as an active ingredient.;COPYRIGHT: (C)2011,JPO&INPIT