Synonyms: Pregna-1,4-diene-3,20-dione,6a,9-difluoro-11b,17,21-trihydroxy-, 21-acetate17-butyrate (8CI);Butyric acid, 17-ester with 6a,9-difluoro-11b,17,21-trihydroxypregna-1,4-diene-3,20-dione21-acetate (8CI);6a,9-Difluoro-11b,17,21-trihydroxypregna-1,4-diene-3,20-dione 21-acetate 17-butyrate;6a,9-Difluoroprednisolone 21-acetate17-butyrate;6a,9a-Difluoroprednisolone 21-acetate17-butyrate;CM 9155;Epitopic;Myser;W 6309;