Frontline Spot On for cats kills fleas and ticks and controls biting lice on both cats and dogs. It is fast acting and kills fleas within 24 hours and ticks within 48 hours. Frontline is long lasting killing fleas for up to 5 weeks in cats and 2 months in dogs. It will also kill ticks for up to a month in cats and dogs. After application your pet can swim or be bathed as usual from 48 hours after application. Cats should treated for fleas every 5 weeks and fleas and ticks every month. Suitable for use on kittens over 8 weeks of age weighing over 1kg. Read more…Directions:Part the coat between the shoulder blades until the skin is visible. Place the tip of the spot-on pipette on the skin and squeeze gently to empty its contents onto the skin, preferably at two spots, one at the base of the skull and a second 2-3cm's further back. 1 pipette of 0. 5 ml per cat (approximately 7. 5 - 15 mg/kg).