Tick & flea spot-on treatment for dogs. Advantix provides monthly protection against fleas, ticks and other nasties before they bite. Only Advantix is specially formulated to repel and kill deadly Australian Paralysis ticks. This easy-to-use spot-on is applied fortnightly, reducing the risk of ticks harming your dog. Advantix kills fleas fast. Its rapid killing power stops fleas feeding within 3 to 5 minutes, killing adult fleas and their larvae within 20 minutes. Another benefit is that it also kills fleas in your dog's surroundings, helping to break the flea life cycle. Plus the super ingredients in Advantix make it the only treatment that also protects your dog from irritating biting insects. Advantix repels and kills sand flies and the mosquitoes responsible for heartworm transmission. Advantix is water-resistant too, so it keeps working even after swimming or shampooing.