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. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism. Approximately 1% of dogs had vomiting associated with the use of this product. Safe-Guard Canine Dewormer has no known interactions.