Glucocorticoids are potent anti-inflammatories, regardless of the inflammation's cause; their primary anti-inflammatory mechanism is lipocortin-1 (annexin-1) synthesis. Lipocortin-1 both suppresses phospholipase A2 , thereby blocking eicosanoid production, and inhibits various leukocyte inflammatory events ( epithelial adhesion , emigration , chemotaxis , phagocytosis , respiratory burst , etc.). In other words, glucocorticoids not only suppress immune response, but also inhibit the two main products of inflammation, prostaglandins and leukotrienes . They inhibit prostaglandin synthesis at the level of phospholipase A2 as well as at the level of cyclooxygenase /PGE isomerase (COX-1 and COX-2),  the latter effect being much like that of NSAIDs , potentiating the anti-inflammatory effect.
There are two major types of hormones produced by the adrenal gland , the mineralocorticoids and the glucocorticoids. This monograph discusses prednisone which is a synthetic glucocorticoid or corticosteroid. There are many different corticosteroid drugs available and different medical conditions are treated with different corticosteroid drugs based on the individual drug’s pharmacology (potency, speed of onset, duration of action). The other types of hormones produced by the adrenal gland are called mineralocorticoids. They primarily control salt and water balance in the body.