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  • Title: Effects of N-(3-[3-(1-piperidinylmethyl)phenoxy]propyl)-acetoxyacetamide hydrochloride (TZU-0460), a histamine H2-receptor antagonist, on gastric acid secretion and ulcer formation.
    Author: Tarutani M, Sakuma H, Shiratsuchi K, Mieda M.
    Journal: Arzneimittelforschung; 1985; 35(5):844-8. PubMed ID: 2862875.
    Abstract:
    N-(3-[3-(1-Piperidinylmethyl)phenoxy]propyl)-acetoxyacetamide++ + hydrochloride (TZU-0460) was compared with cimetidine for the effects on gastric acid secretion in dog and rat and on ulcer formation in rat. TZU-0460 as well as cimetidine, given i.v. or p.o., produced a dose-dependent inhibition of acid secretion stimulated by histamine, pentagastrin or carbachol in Heidenhain gastric pouch dogs and gastric lumen-perfused rats. In dog, the relative potencies of TZU-0460 to cimetidine, given p.o. and i.v., were 6.2 and 5.1, respectively, in acid secretion stimulated by histamine, and those gained by i.v. route were 3.5 by pentagastrin and 4.2 by carbachol. In rat, however, relative potencies of TZU-0460 to cimetidine, given i.v., were 2.8, 2.2 and 1.6 in acid secretion stimulated by histamine, pentagastrin and carbachol, respectively. TZU-0460, given p.o., prevented the formation of gastric ulcers induced by exposure to stress, pylorus-ligation, both pylorus-ligation and acetylsalicyclic acid, indometacin or reserpine in rats. TZU-0460 was about twice as active as cimetidine on these experimental models of gastric ulcers. TZU-0460, given p.o., prevented the formation of duodenal ulcer induced by cysteamine in rats, whereas cimetidine failed to prevent it significantly.
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