Kentucky Performance Neigh-Lox Digestive Supplement for Horses, 3.5 Pound Container Don't let equine gastric ulcer syndrome (EGUS) derail your horse Long acting Neigh Lox neutralizes excess acid and coats the stomach lining for up to 8 hours. Our unique patented formula aids in the maintenance of a normal stomach environment that reduces the risk of gastric ulcers A single dose of Neigh Lox has 240 mEq of acid neutralizing capacity, which is equivalent to the amount of gastric acid typically produced over a 6 hour period In addition to its buffering capabilities, Neigh Lox also contains compounds that coat the lining of the stomach and adhere to gastric lesions, which maintains healthy mucosa and supports healing