Objective. This article describes the first experience of using an oxygenated salt intestinal solution (SIS) in the complex intensive care of functional intestinal failure (FIF) developed due to pancreonecrosis in a child aged 10 years 11 months after a blunt abdominal injury and burdened with concomitant alimentary factor. Complex treatment was aimed to eliminate increasing endotoxicosis, pain syndrome, suspected secondary ischemia of the affected organs of the pancreaticoduodenal zone, restoration of motor and barrier functions of the intestine. In this connection, adjustments were made to the early enteral nutrition and enteral correction method using an oxygenated salt enteral solution (with a description of the oxygenation method), which allowed for 12 h to eliminate intestinal paresis, with the production of stool. According to the intestinal lavage method, repeated use of SIR-RA led to the significant persistent improvement in the patients condition and a decrease in inflammatory markers, which subsequently allowed the transition to adequate enteral nutrition. The patient was subsequently transferred to a specialized surgical Department and discharged from the hospital, and recovered with no signs of endocrine pancreatic insufficiency. Positive treatment results of a patient with pancreonecrosis complicated by FIF were made possible by improving intensive therapy tactics using an oxygenated salt enteral solution. The scheme of gradual enteral correction developed and used by us is an essential component of complex therapy of pancreonecrosis and functional intestinal insufficiency. The use of an oxygenated salt enteral solution helps to restore the main functions of the gastrointestinal tract.