Immediate Release (IR) to Sustained Release (SR) Switching Study: Study of Switching from IR Seroquel to SR Seroquel in Outpatients with Schizophrenia

Exclusion Criteria

• - Meeting the criteria for any other (than schizophrenia) Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) Axis I diagnosis, concomitant organic mental disorder or mental retardation.
• - Patients with substance abuse or dependence, as defined by DSM-IV, and not in full remission. A urine drug screen test will be performed. The investigator will evaluate the results along with medical history to determine if the patient meets DSM-IV criteria for substance abuse or dependence.
• - Risk of transmitting human immunodeficiency virus (HIV) or hepatitis B, via blood or other body fluids, as judged by the investigator.
• - Patients who, in the opinion of the investigator, pose an imminent risk of suicide or a danger to self or others.