Efficacy of diazinon in an otic solution for the treatment of otodectic mange on dogs
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abstract
Diazinon is an organophospate used on the ectoparasite control especially in production animals. The objective of this study was to evaluate the efficacy of an otic solution containing this insecticide on the treatment of Otodectes cynotis infestations in dogs. Ten naturally infested beagle dogs were examined by bilateral otoscopy three days before treatment and on the treatment day. The dogs were randomly divided into two groups, which five were the control group and the other five treated. On the treated group 1 ml of the otic solution was applied in each ear for seven following days, corresponding to 10 mg of diazinon per ear everyday. All animals were examined by otoscopy on days +1, +4, +10, +17 +24 e +31 after treatment. The control dogs showed mites during the whole period of observation. On the treated group the otic solution had a 100% efficacy on each day of observation until day +31. 2007 Sociedad Chilena de Parasitologa. Organo Oficial de la Federacin Latinoamericana de Parasitlogos.
