Fludrocortisone is a corticosteroid and is used to replace the steroid hormone that your body lacks. Corticosteroids are medications which act in the same way as steroid hormones and are used to replace the body’s own production when the adrenal glands (that produces steroid hormones) are not working normally.
Fludrocortisone is used to treat Addison’s disease, which is a long-term condition where your body does not make enough steroid hormones.