Acute & maintenance treatment of schizophrenia & other psychoses where +ve (eg, delusions, hallucinations, disordered thinking, hostility, suspiciousness) &/or -ve (eg, flattened affect, emotional & social w/drawal, speech poverty) symptoms are prominent. Alleviates secondary affective symptoms commonly associated w/ schizophrenia & related disorders. Short-term treatment of acute manic episode associated w/ bipolar I disorder. Prevention of recurrence of manic, mixed or depressive episodes in bipolar I disorder.