A Combination of Two Currently Approved Drugs to Enhance the Treatment of Schizophrenia

Study of a medication for the treatment of Schizophrenia in patients who are already taking Abilify, Risperdal, Seroquel, Zyprexa

Inclusion Criteria:

• Must have a clinical diagnosis of Schizophrenia
• Must be at least 18 years of age and not older than 55 years of age
• Must have been stable on a dose of Abilify, Risperdal, Seroquel, or Zyprexa for the past 8 weeks
• Women of childbearing potential must be using a medically accepted means of contraception
• Must be able to swallow capsules

Exclusion Criteria:

• Has serious health problems other than Schizophrenia
• Takes an antidepressant for depression
• Takes insulin for diabetes
• Have a history of alcohol or drug dependence (except for nicotine and caffeine) within the past 6 months