SAFE-GUARD® (fenbendazole) Canine Dewormer is for the treatment and control of Roundworms, Hookworms, Whipworms and Taenia Tapeworms in dogs. SAFE-GUARD Canine is the only over-the-counter dewormer for dogs that treats all 4 major intestinal parasites in dogs using only one drug compound, fenbendazole, minimizing your dog’s chemical exposure. The daily dose for SAFE-GUARD Canine is 50 mg/kg (22.7 mg/lb) of body weight.