in order to illustrate the activity of the aforementioned substances in the more classic tests of antisecretory activity , an in vivo test of inhibition of gastric secretion in pylorus-ligated rats and the in vitro tests of h2-receptor blocking activity ( isolated guinea-pig atrium ) , anticholinergic activity ( isolated guinea-pig ileum ) and carbonic anhydrase ( canine blood ) were included .
C0038351
gastric
C0034196
pylorus