A Clinical Trial to Evaluate the Safety and Efficacy of Olanzapine Titration Schedule in Patients With Schizophrenia

Inclusion Criteria: * Of patients with schizophrenia in accordance with DSM(Diagnostic and Statistical Manual of Mental Disorders)-5 diagnostic criteria, who are judged that administration of low dose is more appropriate than initial recommended dose or standard titration dose of olanzapine to consider medical conditions by investigator * Patients with the duration of schizophrenia for more than 1 year at screening visit(Visit 1) Exclusion Criteria: * Patients diagnosed schizophrenia spectrum and other psychotic disorder(e.g. schizoaffective disorder, etc.), bipolar disorder, depressive disorder, etc., in accordance with DSM(Diagnostic and Statistical Manual of Mental Disorders)-5 diagnostic criteria at screening visit(Visit 1) * Patients with a history of hospitalization for worsening schizophrenia within 12 weeks at screening visit(Visit 1)