Patent ID: 6083519
Filing Date: 2000-07-04
Classification: A01N

Abstract:
A method for distributing an active agent over a pet's body and/or in sebaceous glands of the pet and thereby control fleas and ticks on or eliminate fleas and ticks from the pet to ensure more than six months of efficacy of greater than 95% against fleas, as determined in a test providing the reinfestation of the pet with 100.+-.10 fleas, and more than three months of efficacy of greater than 90% against ticks, as determined in a test providing the reinfestation of the pet with 50.+-.3 ticks, comprising attaching to the pet a collar having a matrix into which is incorporated from 0.1 to 40% by weight, relative to the collar, of the active agent against fleas and ticks, wherein this active agent comprises at least one compound corresponding to formula (I) below in which R.sub.1 is CN, R.sub.2 is S(O).sub.n R.sub.3.R.sub.3 is haloalkyl, R.sub.4 is NH.sub.2, X is C-R .sub.12, R .sub.12 is a halogen atom, R.sub.11, is a halogen atom, R.sub.13 is haloalkyl, and n is an integer equal to 0, 1 or 2 ##STR3##