A Comparison of Risperidone and Aripiprazole for Treatment of Patirnts With Methamphetamine-Associated Psychosis

A Multiple-Center, Randomized, Double-Blind Study of Comparison of Risperidone and Aripiprazole for Treatment

Methamphetamine-associated psychosis (MAP) has been considered a pharmacological or environmental pathogen model of schizophrenia (SCZ) due in part to similarities in clinical presentation (i.e. paranoia, hallucinations, disorganized speech, and negative symptoms), response to treatment (e.g.neuroleptics),and pathologic mechanisms (e.g. central dopaminergic neurotransmission) of both conditions. Both risperidone and aripiprazole are second generation antipsychotics，but have different pharmacological effects of antipsychotic treatment.This study was designed to examine the acute efficacy, safety, and tolerability of risperidone and aripiprazole for patients with MAP.

Methods:A Multiple-Center, Randomized, Double-Blind.

Inclusion Criteria:

1. Patients,Diagnostic and Statistical Manual of Mental Disorders 4thed. (DSM-IV) criteria for Methamphetamine-Associated Psychosis.
2. Must sign a Information consent form.
3. Required to provide detailed address and phone number

Exclusion Criteria:

1. Serious organic disease.
2. Suicide ideation or hurt others.
3. Taking antipsychotic within two weeks before.
4. drug allergy to Risperidone or Aripiprazole.
5. pregnancy and breastfeeding women.