The treatment and prevention of infestations by fleas (Ctenocephalides spp.), ticks (Rhipicephalus spp., Dermacentor spp. and Ixodes spp.) in cats, and as part of a treatment strategy for Flea Allergy Dermatitis, where this has been previously diagnosed by a veterinary surgeon. The product controls infestations with Felicola subrostratus biting lice on cats. FRONTLINE Spot On Cat can be used in kittens from 8 weeks of age and weighing at least 1kg.