Metyrapone, sold under the brand name Metopirone, is a medication which is used in the diagnosis of adrenal insufficiency and occasionally in the treatment of Cushing's syndrome (hypercortisolism)...Wikipedia

Manufacturer's Website: Metopirone                                                                                                            Average retail cost: $6,706/120 caps

Osilodrostat, sold under the brand name Isturisa, is a medication for the treatment of adults with Cushing's disease who either cannot undergo pituitary gland surgery or have undergone the surgery but still have the disease...Wikipedia

Manufacturer's Website: Isturisa                                                                                                                      Average retail cost: $20,939/40 tablets

Levoketoconazole, sold under the brand name Recorlev, is a steroidogenesis inhibitor that is used for the treatment of Cushing's syndrome...Wikipedia

Manufacturer's Website: Recorlev                                                                                                                Average retail cost: *

* This drug is only available at select specialty pharmacies, which usually means it may be expensive.