A Study to Compare the Efficacy and Safety of Ziprasidone and Risperidone for the Treatment of Schizophrenia in Chinese Patients

Oral risperidone capsules 1 and 2 mg; doses were 1 mg once daily on Days 1-2, 2 mg once daily on Days 3-4, 3 mg once daily on Days 5-7, and 1, 2, or 3 mg twice daily during Weeks 2-6

Oral ziprasidone capsules 40, 60, and 80 mg; doses were 40 mg twice daily on Days 1-2, 60 mg twice daily on Days 3-7, and 40, 60, or 80 mg twice daily during Weeks 2-6