[{"from": "human", "value": "Provide a description of this molecule. [C][C@][C][C][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][C][C][C@@H1][C@@][Ring1][O][Branch2][Ring1][=N][C@H1][Branch2][Ring1][Branch2][C][C@][Branch2][Ring1][C][C@H1][Ring1][=Branch1][C][C][C@@][Ring1][Branch1][Branch1][#Branch1][C][=Branch1][C][=O][C][O][O][C][O][F]"}, {"from": "gpt", "value": "The molecule is a synthetic mineralocorticoid used in conjunction with [hydrocortisone] to replace missing endogenous corticosteroids in patients with adrenal insufficiency. It is functionally similar to [aldosterone], the body's primary endogenous mineralocorticoid, and is structurally analogous to [cortisol], differing only by a fluorine atom at the 9-position of the steroid structure - this fluorination is thought to be crucial to fludrocortisone's significant mineralocorticoid potency."}]