SAFE-GUARD(R) (fenbendazole) Medicated Dewormer for Beef Cattle (20% Protein Block) is indicated for the removal and control of: lungworms; stomach worms (barberpole worm, brown stomach worm, small stomach worm); intestinal worms (hookworm, thread-necked intestinal worm, small intestinal worms, bankrupt worms, and nodular worms). | Merck Safe-Guard Beef Cattle Medicated Dewormer Protein Block | Size 25 lb