Cortisone

Cortisone is a 21-carbon steroid hormone. Its chemical name is 17-hydroxy-11-dehydrocorticosterone. It is one of the main hormones released by the adrenal gland in response to stress. 
In chemical structure, it is closely related to cortisol. It is used to treat a variety of ailments and can be administered in various ways. Cortisone suppresses the immune system. This reduces inflammation, pain and swelling at the site of the injury. Long-term use of cortisone has risks.
Tadeus Reichstein, E.C. Kendall and P.S. Hench were awarded the Nobel Prize in Physiology or Medicine in 1950 for their discovery of cortisone.