Advantage Large Red is for dogs between 10-25 kg. It is for the treatment and prevention of fleas (Ctenocephalides spp) on large dogs. Larval flea stages are killed in the surroundings of Advantage treated pets. It reduces the incidence of flea allergy Dermatitis and controls lice (Trichodectes canis, Linognathus setosus). One application lasts for a month. It is convenient and easy to apply.