Pyriprole (trade name Prac-tic) is for veterinary use on dogs against external parasites such as fleas and ticks.Pyriprole is a phenylpyrazole derivative similar to fipronil. Although recently introduced (in the 2000s) and still under patent protection it is a classic insecticide. So far it is only approved in the EU and a few other countries for use on dogs. It is not approved for use on cats or livestock.
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