Colored or almost white crystalline powder; odorless and bitter. It is insoluble in water, slightly soluble in ethanol, ethyl acetate and slightly soluble in acetone. It is used in various acute severe bacterial infections, severe allergic diseases, collagen diseases (lupus erythematosus, periarteritis nodosa, etc.), rheumatoid arthritis, nephrotic syndrome, severe bronchial asthma, thrombocytopenic purpura, etc. Granulocytopenia, acute lymphoblastic leukemia, various adrenocortical dysfunction, exfoliative dermatitis, pemphigus, neurodermatitis, eczema, etc.