Dataset from A 52-wk Prospective, Randomized, Double-blind, Multicenter Study of Relapse Following Transition From Oral Antipsychotic Medication to 2 Different Doses (25 or 50 mg Every 2 Wks) of Risperidone Long-acting Microspheres (Risperdal� CONSTA�) in Adults With Schizophrenia or Schizoaffective Disorder

The purpose of this study is to assess the time for patients to relapse when switched from an oral antipsychotic to one of two doses of long-acting risperidone injection (shots). Risperidone has been used successfully to treat schizophrenia and schizoaffective disorder.