Discus, sion The exact mode of action of these substituted biurets on inhibition of gastric secretion and incidence of ulcer formation is not clear. Various classes of compounds will inhibit these gastric parameters in the ligated rat (ie., anticholinergics, antispasmodics, carbonic anhydrase inhibitors, CNS depressants). While no data are available on possible inhibition of carbonic anhydrase, no evidence of diuresis (qualitative observed with ...