Safe-Guard Canine Dewormer contains 22.2% Fenbendazole for the treatment and control of roundworms, hookworms, whipworms, and tapeworms in dogs and puppies over 6 weeks of age. Dosage is 1 gm per 10 lbs. body weight, mixed daily with food for 3 days. (Each Box cotains 3 of the 1 gm packets).