To evaluate the efficacy and safety of modafinil in reducing methamphetamine use in subjects with methamphetamine dependence. It is hypothesized that modafinil, compared to placebo, will be associated with an increase in the number of methamphetamine non-use weeks over time as measured by quantitative urine analysis for methamphetamine.
The purpose of this study will be to examine the safety and efficacy of modafinil in increasing number of methamphetamine non-use weeks in subjects with methamphetamine dependence.