Patent ID: 6140350
Filing Date: 2000-10-31
Classification: A61K,A61P,C07D

Abstract:
A method for controlling ectoparasites through blood of a host animal which comprises applying at least one neonicotinoid compound given in the following formula (1): ##STR2## wherein, A represents 6-chloro-3-pyridyl, 2-chloro-5-thiazolyl, tetrahydrofuran-2-yl, tetrahydrofuran-3-yl, 5-methyltetrahydrofuran-3-yl, 3-pyridyl, 6-bromo-3-pyridyl, 3-cyanophenyl, 2-methyl-5-thiazolyl, 2-phenyl-5-thiazolyl or 2-bromo-5-thiazolyl group; R.sub.1 represents hydrogen atom, methyl, ethyl, formyl or acetyl group; R.sub.2 represents methyl, amino, methylamino, N,N-dimethylamino, ethylamino, N,N-diethylamino, N-ethyl-N-methylamino, 1-pyrrolidinyl, (6-chloro-3-pyridyl)methylamino or N-methyl-N-(6-chloro-3-pyridyl)methylamino group; Y represents cyano, nitro or trifluoroacetyl group; and m represents an integer of 0 or 1; to the host animal, wherein the method is an oral administration, injection administration or implantation.