Dosage regimens for at least one compound chosen from Iurasidone and pharmaceutically acceptable salts, solvates, clathrates, and stereoisomers thereof are disclosed as are kits and methods for treatment and/or prevention of at least one CNS disorder such as, for example, mixed depression and bipolar disorder, and management of at least one CNS disorder, such as improving quality of life and reversing impairment in learning and memory associated with schizophrenia, comprising administering to a patient a therapeutically or prophylactically effective amount of at least one compound chosen from lurasidone and pharmaceutically acceptable salts, solvates, clathrates, and stereoisomers thereof.
