EQUINE: 

Type C feed is to be fed at the rate of 0.1 or 0.2 pounds per 100 pounds of body weight to provide 2.27 or 4.54 mg fenbendazole per pound of body weight.

For the control of large strongyles, small strongyles, and pinworms the recommended dose is 5 mg fenbendazole per kg body weight (2.27 mg fenbendazole per pound) in a ONE (1) DAY treatment. For the control of ascarids the recommended dose is 10 mg fenbendazole per kg body weight (4.54 mg fenbendazole per pound) in a ONE (1) DAY treatment. All horses must be eating normally to ensure that each animal consumes an adequate amount of medicated feed. Do not underdose.  Ensure each animal receives a complete dose based on a current body weight.  Underdosing may result in ineffective treatment and encourage the development of parasite resistance.