RT Journal Article SR Electronic T1 Ranitidine v. cimetidine in peptic ulcer JF Drug and Therapeutics Bulletin JO Drug Ther Bull FD BMJ Publishing Group Ltd SP 57 OP 59 DO 10.1136/dtb.20.15.57 VO 20 IS 15 YR 1982 UL http://dtb.bmj.com/content/20/15/57.abstract AB For five years cimetidine (Tagamet - SKF) has been the only histamine H2-receptor antagonist available for the treatment of peptic ulceration.1 It has now been joined by ranitidine (Zantac - Glaxo), an H2-receptor antagonist which like cimetidine decreases gastric acid secretion both basal and in response to all stimuli.2, 3 Neither drug affects the H1 receptors in bronchial, vascular or intestinal smooth muscle. Is there anything to choose between them?