Frontline spot on for cats is a treatment for the prevention of fleas and tick infestation in cats while also effectively controlling biting lice for cats frontline spot on kills 98 100 of fleas within 24 hours of use for up to 5 weeks with 6 pipettes provding 30 weeks of treatment and also prevents re infestation by adult and immature ticks for up to 1 monthfeaturesbullprotects against fleas and ticksbullkills 98 100 of fleas within 24 hoursbulleach pipette treatme