Four gram dose of this powder is used to treat hookworms, roundworms, Taenia Tapeworms, and whipworms in dogs. The active ingredient fenbendazole is approved by the FDA to safely treat and prevent. Works by binding to the parasitic proteins, which leads to damaging the structure and the transport function of its cells. Give once per day for three consecutive days; use one gram per 10 pounds of body weight. Can be mixed with food for easy administration.