21-Deacetoxy Deflazacort is white or almost white crystalline powder. It is the raw material and intermediate of corticosteroid medicine. It has anti-inflammatory and anti allergic effects, which is 10-20 times as much as prednisolone. It is used in adrenocortical hypofunction, autoimmune diseases, allergic diseases and hematological diseases. Difcote should not be used for general infection; It should be used with caution to avoid the spread and aggravation of virus infection due to the inhibition of immune system function.