after oral administration to conscious heidenhain pouch dogs , ed50 values for the inhibition of near maximal gastric acid secretion stimulated by histamine were 7.1 , 5.4 , 0.74 and 0.69 mumol/kg for cimetidine , etintidine , ranitidine and tiotidine , respectively .
C1372721
inhibition
C0034665
ranitidine