Background . Severe forms of COVID-19 are associated with the development of a cytokine storm that is characterized by an increased secretion of anti-inflammatory cytokines. Thus, one of the leading strategies of treatment for patients with severe forms of COVID-19 is a decrease in the concentration of anti-inflammatory cytokines and inhibition of their effect on the organism. Objective : to perform a comparative analysis of clinical and economic constituents of the application of an IL-6 inhibitor tocilizumab and systemic glucocorticosteroid dexamethasone for the therapy of severe conditions in patients with COVID-19 based on the published data review. Material and methods . The authors analyzed the data obtained from PubMed/MEDLINE databases on the study dedicated to the application of tocilizumab and dexamethasone for the therapy of severe conditions in patients with COVID-19. A statistical evaluation of the influence of these drugs on the 28-day survival rate of patients with a severe form of COVID-19 was performed. The statistical tools included methods of the attribute-based statistic (attribute-based efficiency, relative efficiency (RE), populational attributive efficiency (PAE)). For the visualization of the clinical efficiency of the compared drugs, the authors applied beta-distribution. Markov’s model was used for modeling of the mortality rate. The modeling included the study of a hypothetical cohort of patients (1,000 patients with COVID-19). Besides, the authors evaluated the economic constitutive of the therapy with tocilizumab and dexamethasone. The cost-effectiveness analysis was performed. Results . The indication of dexamethasone statistically significantly increases the survival rate by 3.1% and tocilizumab – by 22.5%. RE was 1.04 (95% CI 0.040–2.042) for dexamethasone and 1.66 (95% CI 0.400–2.917) for tocilizumab. The lower border of 95% CI for both drugs was within the range of values