Gastric ulceration is widespread among foals and performance horses. Weaning, sale preparation, training, showing, shipping and other stress related activities can all lead to digestive problems. Neigh-Lox protects the stomach lining from gastric acid to help prevent ulcer formation. Feeding directions: weanlings (6-12 months) add 2 oz. to each grain meal; yearlings (12-24 months) add 4 oz. to each grain meal; horses in training, add 4 oz. to each grain meal.