Peptizole is the latest product now available to help treat and prevent gastric ulcers in horses. It contains omeprazole which reduces gastric acid secretion in the stomach. A dose is given from the graduated syringe once daily for up to 28 days. One full syringe will provide a full dose for a horse of 700kg bodyweight. If Peptizole is being given as a preventative, rather then treatment of an existing ulcer, then a quarter dose is given each day. Syringes are graduated in 50kg bodyweight divisions.