Assertion: antacid's effect | /r/HasProperty | brief
Facets:
value: in vivo
type: OTHER
Source sentences:
text: The acid neutralizing effect of such conventional antacids is known to be brief in vivo, which is ascribable to two principal causes: the normal gastric emptying rate which causes the composition to be transferred to the intestines before its acid neutralizing and buffering capacities have been exhausted, and "acid rebound" or increased acid secretion induced by increased release of gastrin from the so-called G cells of the antrum which are pH sensitive, the increased production of gastrin occurring at a pH of the gastric contents of about 4-5 or more.