Abstract:This study deals with the antrulcer effect of water extract and ether extract of Cinnamomum cassia on four types of experimental gastric ulcer and with the antidiarrhea effect on two types of medicine-induced diarrhea in mice. These extracts have choleretic effect in anesthetized rats, and are analgesic as well. This is the pharmacologic basis of spleenstomach warming and analgesic action of Cinnamomum cassia.