Prednisone

Prednisone is a glucocorticoid prodrug that is converted by 11beta-hydroxysteroid dehydrogenase in the liver into the active form, prednisolone. It is used to treat certain inflammatory diseases (such as severe allergic reactions) and (at higher doses) some types of cancer, but has many significant adverse effects. It is usually taken orally but can be delivered by intramuscular injection or intravenous injection.