Ulc-R-Aid with Colostrashield for Horses is designed to nutritionally support horses of all ages with gastric ulcers. Combines natural supplemental calcium and magnesium, commonly known as antacids, with the protective healing properties of Colostrashield, “mother nature’s protective shield", which contains over 37 important natural immune factors and more than 8 growth factors that aid in combating illness while protecting against infection.