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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."
Condition or disease
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.
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Ages Eligible for Study:
18 Years to 65 Years (Adult, Older Adult)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
18-65 years of age. Able to provide informed consent. Desire to reduce/eliminate methamphetamine use. Used within the past two weeks. Meet DSM criteria for methamphetamine dependence.
No dependence (within the past 12 months) for other durgs except nicotine. No history or family history of tyrosine intolerance.