Safe-Guard Canine Dewormer 3 x 2 gram Non-prescription formula (same as Panacur) contains 22.2% Fenbendazole for the treatment and control of roundworms, hookworms, whipworms, and tapeworms (Taenia) 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. (For a 10 lb. dog, order 3 of the 1 gm packets.)