Nutritional support for horses prone to gastric ulcers. This unique formula combines natural supplemental calcium and magnesium, commonly know as antacids, with the protective prop. Horses of all classes and ages feed 1 to 2 tablespoons per 1000lbs of body weight. Size is 4 Pound. Dimensions are 0.75 X 0.75 X 0.8 Each Ounce Contains: L-Tryptophan 500mg, Thiamine 500mg, Calcium 20mg, Magnesium 2.4 Mg. UPC Code = 694244904622