Frontline Spot On Flea & Tick Treatment For Cats 6 Pipettes For the effective treatment & prevention of infestations by fleas & ticks in cats & as part of a treatment strategy for Flea Allergy Dermatitis, where this has been diagnosed by a veterinary surgeon, in this case apply monthly. The product also controls infestations with biting lice on cats. Suitable for cats over 8 weeks of age, weighing at least 1kg