The invention relates to compositions for controlling parasites on animals, comprising an active ingredient from the group of the phenylpyrazoles and vitamin E or a derivative thereof, such as vitamin E acetate in particular, and also, optionally, a further active ingredient from the group of the pyrethroids, and/or, optionally, further active ingredients and/or excipients. The invention relates more particularly to the use of such compositions for controlling ectoparasites such as, especially, fleas, ticks and sand flies on domestic animals such as, especially, on dogs, cats and ferrets.