Inclusion Criteria:
Inclusion criteria for screening
- Schizophrenia or Acute schizophrenia-like psychotic disorder(ICD 10)
- PANSS total of no less than 60
- Age: 18-65; male or female
- Informed consent from the legal guardians of the patients Inclusion criteria after washout
1.PANSS total of no less than 60 2.3-7days washout with placebo is required after discontinuation of other oral antipsychotics; No washout is needed for patients who had never taken any antipsychotics before; In cases that patients’s condition is deemed clinically deteriorating and immediate treatment is needed, patients with less than 3 days’ placebo washout could be randomized after notifying the sponsor 3.No serious function impairment in heart, liver or kidney.
-
Exclusion Criteria:
For screening
- Tendency or history of suicide
- Patients with extreme agitation, violent attacking behavior towards people and those who can hardly comply with treatment
- Diagnosis of other mental diseases besides Schizophrenia
- Diabetes or other serious unstable diseases or the following neurological diseases, migraine, epilepsy, Parkinson’s disease, Alzheimer’s disease, multiple sclerosis, stroke and TIA etc
- Patients who take Fluoxetine in the past 1-month before screening
- Patients who had participated any other clinical trial in the past 1-month before screening
- History of alcohol or drug abuse or dependence
- Pregnancy or breast-feeding
- Patients who have had gastrointestinal operations that could affect drug absorption.
- Allergy to Risperidone or Aripiprazole or hypersensitiveness to any drug
- Patients who discontinued long-acting antipsychotics less than one treatment cycle before screening
- Refractory schizophrenia patients who did not respond to treatments of two different type antipsychotics with adequate dose and course, or patients who did not respond to Clozapine
- Patients who had Electroconvulsive Therapy (ECT) in the past 6 months After washout
1. Diagnosis of other mental diseases besides schizophrenia during the washout period 2. Significant abnormal ECG or laboratory examination results (ALT,AST>1.5 times of higher limit of normal range), not suitable to be enrolled based on the investigator’s discretion.
-