Diagnostic and Statistical Manual of Mental Disorders - Fourth Edition (DSM-IV) diagnosis of schizophrenia and\\or schizoaffective disorder.
Age between 18 to 64.
PANSS negative symptom score higher than 19.
SAS total score lower than 12.
CDSS suicidal risk lower than 2
You may not be if
Epilepsy
Meets DSM-IV criteria for mental retardation.
Medical condition which confounds presentation or treatment (e.g. uncontrolled diabetes mellitus, history of kidney stones, acute drug toxicity, dementia, delirium, stroke, etc.)
Meets DSM-IV criteria for alcohol or drug dependence in last 6 months.
Meets DSM-IV criteria for alcohol or drug abuse in last one month.
Treatment with clozapine.
Current positive pregnancy test or not using acceptable method of birth control.
Meets DSM-IV criteria for current anxiety or mood disorders