Adverse Events: Subjects will be screened for the following side effects of quetiapine which are dizziness (10%), postural hypotension (7%), dry mouth (7%), and dyspepsia (6%), tachycardia (7%) and somnolence (18%). Patients will be also be monitored for other rare events including seizures, tardive dyskinesia, and neuroleptic malignant syndrome (NMS). Other less common side effects (> 1%) include headache (19% vs placebo 17%), asthenia (3% vs 2%), abdominal pain (3% vs 1%), back pain (2% vs 1%), fever (2% vs 1%), constipation (9% vs 5%),w eight gain (2% vs 0%), rash (4% vs 3%), rhinitis (3% vs 1%), and ear pain (1% vs 0%).