Applied topically once a month, protecting your cat against fleas and gastrointestinal worms has never been easier. Advocate® targets several parasites with one topical treatment each month. Kills fleas on contact with your treated pet's skin and hair. Helps break the flea lifecycle, as larvae are killed through contact with your pet. Protects your cat against roundworm and Lungworm. Helps control ear mites in cats. Advocate® for cats is safe for use on kittens from 9 weeks of age.