D.I. TRUKHAN, I.A. GRISHECHKINA, Omsk State Medical University ACTUAL ASPECTS OF ANTI-SECRETOR THERAPY OF GASTROESOPHAGEAL REFLUX DISEASEIn recent years, GERD has attracted increased attention, which is associated with a clear tendency to increase the incidence of the disease. Adequate treatment of GERD is necessary, as this disease worsens the quality of life of patients, and prolonged existence and progression of esophagitis can lead to the development of strictures, Barrett's esophagus and esophageal cancer. The main, basic link in the treatment of GERD is effective antisecretory therapy. Inhibitors of proton pump are currently the basis for the treatment of acid-dependent diseases. Although all PPIs are very effective, the antisecretory effect of various drugs of this class may differ in different patients. Pharmacokinetics and metabolism of rabeprazole significantly differ from those of other PPIs. The clearance of rabeprazole is largely non-enzymatic and depends little on the functioning of the cytochrome P450 (CYP) 2C19 system, which makes predictable the effect of rabeprazole and its safety for patients taking several drugs at the same time. A distinctive effect of rabeprazole is the activation of rabeprazole over a wide pH range.