Since 1948, hydrocortisone (cortisol), the principal glucocorticoid (GC) of the human adrenal cortex has been successfully used at phar macological concentrations for the suppression of clinical manifesta tions of rheumatoid arthritis. Numerous compounds with GC activity have also been developed and used. Fifty years after their initial clinical use, GCs are still the most im portant and frequently prescribed class of anti-inflammatory drugs for various inflammatory disorders. They are administered either orally, parenterally (intravenous, intramuscular, intrathecal), or topically (cu...