Used primarily in medication abortion regimens, typically in combination with misoprostol, to terminate early pregnancies. It works by blocking progesterone, a hormone necessary for maintaining pregnancy. Also used for managing hyperglycemia in patients with Cushing’s syndrome who have type 2 diabetes or glucose intolerance, particularly when surgery is not an option or has failed. Investigated for potential use in treating certain hormone-sensitive cancers, psychiatric disorders involving cortisol dysregulation, and other endocrine-related conditions.