Methods and compositions for protecting animals against attack and infestation by helminth, acarid and anthropod endo- and ectoparasites.

摘要

This invention relates to methods and compositions for treating, controlling, preventing and protecting warm-blooded animals from infestation and infection by helminths, acarids and arthropod endo- and ectoparasites by administering or applying to the animals a nitropyrrole or pyrrole carbonitrile compound.