Advantix for dogs is a fast-acting, water resistant, easy to apply spot-on that repels ticks, mosquitoes, sandflies and stable flies and kills fleas and ticks on contact, so there's no need for them to bite! Reinfesting fleas stop biting in 3-5 minutes and are killed within 1 hour. Larval flea stages are killed in the pet's surroundings, and it reduces the incidence of flea allergy dermatitis. Protects against biting and sucking lice. Apply fortnightly to control paralysis ticks, or monthly for all other ticks and insects. Safe to use on puppies from 7 weeks of age and any weight. Also safe to use on pregnant and lactating dogs.