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 Digestive Support for Horses protects the stomach lining from gastric acid to help prevent ulcer formation and maintain normal stomach function. Feed horses and yearlings 8-12 oz daily. Feed young horses 4-6 oz daily. Pellets.