Safe-guard's Beef & Dairy Cattle Dewormer is for the removal and control of Lungworms: (Dictyocaulus viviparus). Stomach worms: Barberpole worms (Haemonchus contortus/placei), Brown stomach worms (Ostertagia ostertagi), Small stomach worm (Trichostrongylus axei). Intestinal worms: Hookworms (Bunostomum phlebotomum), Thread-necked intestinal worms (Nematodirus helvetianus), Small intestinal worms (Cooperia punctata & C. oncophora), Bankrupt worms (Trichostrongylus colubriformis), Nodular worms (Oesophagostomum radiatum). | Merck Safe-Guard 290gm Beef and Dairy Cattle Dewormer | Size 290 gram