TOPICALLY ACCEPTABLE WATER PREPARATION FOR LOCALIZED EXTERNAL APPLICATION ON ANIMALS AND CONTAINING A WATER-SOLUBLE PYRETHROID, AND PROCEDURES TO COMBAT PASTER INSECT OR

摘要

An aqueous pour-on formulation for localized external application to animals comprises an aqueous carrier, an effective amount of a water-insoluble anti-parasitic agent suspended or dispersed in the aqueous carrier, and a colored dye to enable the application to be observed. Preferred water-insoluble agents include pyrethroids, organophosphorus compounds, formamidines, thiazoles and avermectins. Use of an aqueous system avoids skin reactions sometimes found when non-aqueous solvent systems are used.