The primary goal of this study is to establish an interdisciplinary and translational collaboration to test bupropion in persons in treatment for methamphetamine dependence and to inform pre-clinical studies so as to enhance their practical applicability to clinical settings. The pilot clinical study will examine the treatment effect and safety of a 12 week course of bupropion in persons with methamphetamine use disorder. Concurrently, we will examine the efficacy of bupropion on methamphetamine self-administration in animal models which better simulates clinical approaches.