Buckley's Zev EQUINE COUGH REMEDY Zev is an effective remedy for several different types of respiratory problems in the horse. Zev may be used for the treatment of stable coughs and upper respiratory ailments, broken wind or heaves and nasal congestion. As an appetizer, Zev aids in the horse's digestive system and helps increase the nutritional value of every meal. Increased nutritional value results in a brighter coat, clearer eyes and improved breathing. Zev is an easy and effective way to keep valued champions in winning shape or pleasure horses in peak condition.