HDID-1 mice (n = 7–11/sex/dose) were tested in a 2-day ethanol DID, followed in subsequent weeks with water DID and saccharin DID. (a) The 50 mg/kg and 100 mg/kg doses of mifepristone significantly reduced ethanol intake (g/kg) in the 4-hour drinking session on Day 2, relative to vehicle. (b) The 50 mg/kg dose of mifepristone significantly reduced BECs relative to vehicle. In contrast, no dose of mifepristone reduced (c) water or (d) saccharin intake (ml/kg) relative to vehicle. BEC = blood ethanol concentration. Dotted line visually represents 0.8 mg/ml, the level of intoxication. All data collapsed on sex. (* = p < 0.05, *** = p < 0.001, **** = p < 0.0001)