preliminary studies in the zollinger-ellison syndrome and in patients intolerant of , or unresponsive to cimetidine , indicate that ranitidine controls the gastric hyperacidity and heals most ulcers , including those which failed to respond to months of treatment with cimetidine 1 to 1.6 g daily .
C0043515
zollinger-ellison syndrome
C0008783
cimetidine