Use of a 1-N-(halo-3-pyridylmethyl)-N-methylamino-1-alkylamino-2-nitroethylene derivative for preparing a topical veterinary pharmaceutical composition for combating external parasites
The present invention relates to the use, as active ingredient, of a 1-N-(halo-3-pyridylmethyl)-N-methylamino-1-alkylamino-2-nitroethylene derivative for preparing a veterinary pharmaceutical composition for topical use in the treatment of external parasites, in particular fleas, in domestic animals, in particular in dogs and cats, intended to be applied at least every 2 weeks.
