Advocate for Dogs prevents flea infestations as well as gastrointestinal worm infections. It controls intestinal worms including roundworms, whipworms, and hookworms. Advocate is a topical spot-on treatment that not only destroys multiple parasites, but also prevents heartworm infection in puppies and dogs. Furthermore, Advocate controls sarcoptic mange, Demodex mites, and ear mites present in dogs. This monthly topical treatment is also water-resistant and the fastest flea control product.