呋喃硝胺(ranitidine,简称ran),又称AH19065,是最近合成的组织胺H_2受体阻滞剂。1979年以来,国外对该药进行了一系列研究,并已移用于临床,证明是一种有希望的药物,引起了人们的重视。动物实验证明ran有较甲氰咪胍(简称cim)更为强大的抑制胃酸分泌作用。将ran以0.1～1.0毫克/公斤/小时的速度由静脉输入喂食了标准试验餐的小猎犬,使试验餐后胃酸分泌减少47.2 Ranitidine (ranitidine, referred to as ran), also known as AH19065, is a recently synthesized histamine H_2 receptor blocker. Since 1979, a series of researches on this medicine have been carried out in foreign countries and have been diverted to clinical use, which proves to be a promising drug that has attracted people’s attention. Animal experiments show that ran has a more powerful inhibition of gastric acid secretion than cimetidine (cim). Ran was fed a standard test meal Beagle dog intravenously at a rate of 0.1 to 1.0 mg / kg / hr to reduce postprandial gastric acid secretion by 47.2