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The new H2-receptor antagonist, ranitidine, has been compared with cimetidine and metiamide as an inhibitor of gastric acid secretion in the dog. All three compounds were effective both intravenously or by mouth in inhibiting secretion induced by histamine, pentagastrin, or bethanechol. This inhibition was mainly attributable to a reduction in the volume of secretion, although there was also a significant reduction in the concentration of acid secreted. Metiamide was slightly less active than cimetidine, but ranitidine was four to nine times more potent than cimetidine, depending on the secretagogue used. The antisecretory activity of ranitidine does not result from a limitation in blood flow to the gastric mucosa.
M J Daly, and
J M Humphray, and
R Stables
April 1980,
Agents and actions,
M J Daly, and
J M Humphray, and
R Stables
August 1980,
British journal of clinical pharmacology,
M J Daly, and
J M Humphray, and
R Stables
June 1981,
Scandinavian journal of gastroenterology. Supplement,
M J Daly, and
J M Humphray, and
R Stables
March 1983,
British medical journal (Clinical research ed.),
M J Daly, and
J M Humphray, and
R Stables
April 1983,
British medical journal (Clinical research ed.),
M J Daly, and
J M Humphray, and
R Stables
April 1983,
British medical journal (Clinical research ed.),
M J Daly, and
J M Humphray, and
R Stables
July 1986,
Archives internationales de pharmacodynamie et de therapie,
M J Daly, and
J M Humphray, and
R Stables
November 1974,
European journal of pharmacology,
M J Daly, and
J M Humphray, and
R Stables
February 1983,
British medical journal (Clinical research ed.),
M J Daly, and
J M Humphray, and
R Stables
February 1979,
Lancet (London, England),
