Any DSM-IV Axis I disorder other than cocaine abuse or dependence, or dependence or daily use of psychoactive drugs other than nicotine or caffeine. A history of violence and/or currently on probation, parole or awaiting trial. Pregnant as determined by serum pregnancy screen, lactating or having delivered a child in the past 12 months. Seropositive tests for the human immunodeficiency virus (HIV) or hepatitis B. History of seizure disorder.