CORTA-FLX U-GARD Solution Field trails show that U-Gard is highly effective on gastric ulcers that may be caused by the stress of training, competition, stall confinement and diets high in carbohydrates. Contains calcium and magnesium which aid in acid reduction. Clinically proven to be effective in helping decrease the severity of gastric ulcers. Suitable for horses, ponies and foals. Shake well before using. For an average 1,100 lb horse, feed 2 ounces twice daily with the horse's regular feed or give orally. Fee other according to body weight, less for smaller horses, ponies and foals, and more for larger breeds.