Florinef Acetate (Fludrocortisone Acetate Tablets USP) contains fludrocortisone acetate, a synthetic adrenocortical steroid possessing very potent mineralocorticoid properties and high glucocorticoid activity; it is used only for its mineralocorticoid effects. The chemical name for fludrocortisone acetate is 9-fluoro-11?,17,21-trihydroxypregn-4-ene-3,20-dione 21-acetate; its graphic formula is: