Synonyms: Pregn-4-ene-3,20-dione,9-fluoro-11b,17,21-trihydroxy- (7CI,8CI);9-Fluoro-11b,17,21-trihydroxypregn-4-ene-3,20-dione;9-Fluorocortisol;9-Fluorohydrocortisone;9a-Fludrocortisone;9a-Fluorcortisol;9a-Fluoro-11b,17a,21-trihydroxy-4-pregnene-3,20-dione;9a-Fluoro-17-hydroxycorticosterone;9a-Fluorocortisol;9a-Fluorohydrocortisone;Alflorone;Astonin-H;Florinef;Fludrocortone;Fludrone;Fluohydrocortisone;Fluorocortisol;Fluorohydrocortisone;NSC 11318;