[The prevention of stress-related postoperative and drug-induced erosive-ulcerative lesions of the upper digestive tract].

Based on the studies made in 84 patients with calculous cholecystitis and 12 patients with calcifying pancreatitis, an efficiency was shown of infusional administration of pyrencepine or ranitidine to prevent stress postoperative erosive-and-ulcerous lesions of gastroduodenal zone. Gastrocepine is shown to be superior to ranitidine and can be withdrawn without a maintenance dose, as well as becouse its cytoprotective effects with respect of the gastric and duodenal mucosa.