Gastric-Acidity-Controlled Rabbits : Control of Gastric pH of Rabbits by the Use of Antacids(Pharmaceutical)

概要

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A method for controlling the gastric pH of rabbits to low acidity (pH >4) by using different antacids was investigated, and the physiological state of rabbits during gastric-acidity control and repeated bioavailability tests was also examined in terms of hemocytological and clinico-biochemical parameters. Neither dried aluminum hydroxide gel (DAH) nor synthetic aluminum silicate (SAS) could elevate the gastric pH to more than 4. In the case of sodium bicarbonate (SBB), the gastric pH increased transiently to around 6 immediately after ingestion of the diet containing SBB and then decreased rapidly to the region of high acidity (pH<3). On the other hand, magnesium aluminosilicate (MAS) could maintain the gastric pH in the range from 4 to 6 over a period of 3h after ingestion of the diet containing MAS. Thus, we conclude that MAS is the preferred antacid for maintaining the gastric pH at low acidity over a long period. Analysis of hemocytological and clinico-biochemical data suggested that the physiological state of rabbits is hardly affected by gastric-acidity control and repeated bioavailability tests.
社団法人日本薬学会の論文
1987-04-25