Safe-Guard is indicated for use in dairy and beef cattle for the removal and control lungworms, stomach worms, barberpole worms, brown stomach worms, small stomach worms, intestinal worms, hookworms, thread-necked intestinal worms, bankrupt worms and nodular worms. 5 lbs treats 1,000 lbs, 50 lb bag treats 10 - 1,000 lb cows.