Evaluate efficacy of tyrosine as a treatment for methamphetamine dependence in an outpatient treatment setting providing group psychosocial interventions. Examine effect of tyrosine on abstinence, retention in treatment and craving.
The purpose of this study is to evaluate efficacy of tyrosine as a treatment for methamphetamine dependence in an outpatient treatment setting providing group psychosocial interventions. Examine effect of tyrosine on abstinence, retention in treatment, and craving.