Abstract
The article provides brief epidemiological data on non-alcoholic fatty liver disease and non-alcoholic steatohepatitis, emphasizing the danger of steatohepatitis, progression of which may cause the development of hepatocellular carcinoma. The properties of ursodeoxycholic acid, which are the basis for its use in a treatment of non-alcoholic steatohepatitis, are analyzed in detail, such as cytoprotective, antioxidant, antifibrotic ones, effects on apoptosis, etc. The authors presented the results of the main evidence-based studies demonstrating the effectiveness of ursodeoxycholic acid and its combinations with other drugs in the treatment of non-alcoholic steatohepatitis.