Abstract:The experimental rcseatch has shown that neither pinellia processed by ginger juice and alum nor pinellia boiledby ginger juice have any rnarked intluence on the secretion of PGE2 in rat gastric juice, or on the activity of gastric pro-teinase in rats. Both the processed produets of pinellia can obviousiy inhibit the gastric and intestinal motility in mice.Raw pinellia can strongly inhibit the secretion of PGE2 gastric acidity and gastric proteinase in rats, but acts not soheayily on their gastrie secretion and appears rather harmful to the gastric mucosa in rats. Raw pinellia can also obvi-ously accelerate the gastric and intestinal motility in rats.