The first and only product proven to prevent equine gastric ulcer syndrome (egus), also known as stomach ulcers in horses. No other product is fda-approved to prevent stomach ulcers in horses. The main ingredient - omeprazole - suppresses acid production in a horse s stomach. Cinnamon-flavored oral paste is well accepted by horses. Once-a-day dosing is convenient to administer. Each tube contains 4 daily doses for horses weighing between 600 and 1,200 pounds. 2 doses recommended for over 1,200 pSize is 4 Dose. Dimensions are 9.75 X 2 X 1 Active Ingredient: Omeprazole. UPC Code = 350604600191