Overview Effectiveness of Tropisetron Plus Risperidone for Improving Cognitive and Perceptual Disturbances in Schizophrenia Status: Completed Trial end date: 2011-08-01 Target enrollment: Participant gender: Summary This study will determine the effectiveness of tropisetron plus risperidone in improving cognitive symptoms in Chinese people with schizophrenia. Phase: Phase 3 Details Lead Sponsor: Baylor College of MedicineCollaborator: National Institute of Mental Health (NIMH)Treatments: RisperidoneTropisetron