Frontlline spot on for cats is for 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