Fight the misery of biting fleas with Advantage II. A monthly topical flea prevention and treatment for cats and kittens (at least 8 weeks old and 2 lbs. or more) that kills fleas through contact so they don?t have to bite your cat to die. Kills and prevents Kills fleas, flea eggs and flea larvae to prevent re-infestations. Easy-to-apply topical Easier than a flea collar. Goes on in seconds. Apply directly to cat?s skin ? no prescription and no hard-to-swallow pills. 30-day continuous protection Apply Advantage II monthly. Starts killing fleas on your cat in 12 hours, waterproof after 24 hours. No prescription needed Available over the counter whenever you need it. Advantage II flea treatment for cats goes on in seconds, starts killing fleas within 12 hours and is waterproof after 24 hours. Simply reapply every 30 days.