Betamethasone 9,11-epoxide (aka betamethasone impurity E) is an impurity of the preparation of Betamethasone. Betamethasone and several derivatives are approved for the treatment of various disorders where the use of corticosteroids is indicated.

Dexamethasone palmitate (a derivative of Dexamethasone), anti-inflammatory, antirheumatic, glucocorticoid receptor agonist, is reported as an ingredient of Limethason in Japan and Lipotalon in Germany. Limethason (Dexamethasone palmitate) inhibits the function of leukocytes and tissue macrophages. It restricts the migration of leukocytes in the area of inflammation. Limethason (Dexamethasone palmitate) decreases capillary permeability caused by histamine release. It inhibits the activity of fibroblasts and collagen formation. Limethason inhibits the activity of phospholipase A2, which leads to suppression of the synthesis of prostaglandins and leukotrienes. Limethason (Dexamethasone palmitate) is indicated for rheumatoid arthritis.