Depression in men is often masked by high-risk behaviors such as alcohol and drug abuse. Common symptoms among depressed men include feelings of hopelessness and helplessness, irritability, and anger. MSM are among those at highest for HIV acquisition due to high-risk behaviors, including unprotected sexual intercourse and drug abuse. Bupropion is an antidepressant medication commonly used to treat depression. The purpose of this study thus was whether bupropion could help MSM with mild-to-moderate depression reduce their high-risk behaviors.