Frontline Combo Cat contains fipronil 50 mg, (S)-methoprene 60 mg, butylhydroxyanisole (E320) and butylhydroxytoluene (E321) in a pipette of 0.5 ml solution Indicated to be used monthly against infestations with fleas, and for the treatment of ticks and/or biting lice. Prevention of the multiplication of fleas by inhibiting the development of eggs, larvae and pupae originating from eggs laid by adult fleas for 6 weeks after application. Can be used as part of a treatment strategy for the control of Flea Allergy Dermatitis (FAD).