The frequency of acute sources of bleeding has recently increased (47%) in the general picture of gastrointestinal bleedings which makes the improvement of diagnosing "acute" sources of hemorrhage and the development of more perfect methods of nonoperative hemostasis very actual. The authors believe that "Kaprofer" used in most of patients with bleedings from acute ulcers and ruptures of the gastro-esophageal zone mucosa (95%) allows the hemorrhage to be arrested. The treatment can be continued without operative interventions. Search for new hemostatic drugs must be performed in order to obtain reliable and long-term effects of drugs with a minimum aggressive action upon the mucosa.