It Acts As A Competitive Antagonist Of Histamine H2 Receptors That Reduces Gastric Acid Secretion. Indicated In The Treatment Of Gastritis, Gastric Ulcer, Duodenal Ulcer, Esophagitis, Gastroesophageal Reflux, Drug Gastritis, Or In Any State Where An Effective Control Of Gastric Acid Secretion Is Required. "Canines: 2 Mg / Kg Every 12 Hours For 14-21 Days, Equivalent To 1 Tablet / 22 Kg Of Weight. Felines: 3.5 Mg / Kg Every 12 Hours For 14-21 Days, Equivalent To 1 Tablet / 12 Kg Of Weight."