The invention relates to agents for the control of parasites on animals, comprising an active substance from the group of the phenylpyrazoles and vitamin E or a derivative thereof, such as particularly vitamin E acetate, as well as optionally a further active substance from the group of the pyrethroids and/or optionally additionally further active and/or auxiliary substances. In particular, the invention relates to the use of such agents for the control of ectoparasites such as, in particular, fleas, ticks and sand flies in pets such as, in particular, in dogs, cats and ferrets.
