If your horse has become a picky eater and has lost weight, has a sour attitude or a drop in performance, it might be suffering from indigestion. Neigh-Lox buffers acids and coats to protect the stomach lining. Ingredients include ground wheat, steamrolled oats, dihydroxy-aluminum sodium carbonate (DASC), aluminum phosphate, soybean oil, dicalcium phosphate, and calcium carbonate.