(Corta Flx) U-Gard Solution is a calcium magnesium supplement to soothe and coat the gastrointestinal tract. U-Gard has been clinically proven effective in decreasing the severity of gastric ulcers in horses. Synergistic formula allows the body's natural healing process to take place. U-Gard Solution contains calcium carbonate, magnesium hydroxide, kaolin, pectin and more. Feed 2 oz. twice daily with horse's feed.