Pantoprazole sodium refers to 5-difluoromethoxy-2 - [(3,4-dimethoxy-2-pyridyl) methyl] sulfinyl-1h-benzimidazole sodium salt. It is an H +, K + - ATPase inhibitor , which can inhibit gastric acid secretion stimulated by various factors such as histamine, gastrin and acetylcholine. It is used to treat diseases related to gastric acid secretion disorders. It has high cure rate, rapid effect and Less adverse reactions.