Original vet-strength flea and tick protection FRONTLINE Spot On is our original flea and tick spot-on formula, first used by vets, now available without a prescription. Once applied the treatment will protect your cat from fleas and ticks for up to a month, and treat lice. Kills fleas on your pet within 24 hours Kills ticks within 48 hours, helping to reduce the risk of tick-borne disease Kills lice Available in 1, 3 and 6 dose packs If your cat is unwell, please see your vet for advice before you apply a flea treatment. FRONTLINE Spot On cat is not suitable for use on rabbits. Use monthly to help protect your cat from fleas and ticks. FRONTLINE Spot On is a veterinary medicine with an exemplary safety profile. Suitable for cats from 8 weeks of age that weigh at least 1 kg. It can also be used in pregnancy and on nursing queens.