[A single evening dose of 300 mg ranitidine in the treatment of acute attacks of gastric and duodenal ulcers. Evaluation of 1,208 patients].

The aim of this study was to evaluate, on a wide population of outpatients, the efficacy of ranitidine 300 mg given once a day at bedtime in duodenal and gastric ulcer. Healing rates observed on 1,208 patients were 85.2% (703/825) in duodenal ulcer, 79.5% (268/337) in gastric ulcer and 71.7% (33/46) in double localization, duodenal and gastric. Analysis of predictive factors of treatment failure showed no influence of smoking on the efficacy of ranitidine neither in duodenal nor gastric ulcer.