Corticosteroids are adrenal hormones with important physiological roles, including regulation of glucose metabolism, protein catabolism, alteration of calcium metabolism, regulation of bone turnover, suppression of the immune system, and downregulation of the process. inflammation. Because of their diverse effects, corticosteroids have been used in the treatment of respiratory diseases such as asthma, chronic obstructive pulmonary disease, idiopathic pneumothorax, and infectious disorders.