The overall purpose of this study was to pilot a multibehavioral, brief, stroke self-care treatment adapted for implementation with underserved racial/ethnic minority groups and to test the moderating effects of anxiety and depression on engagement in secondary stroke-prevention behaviors. Fifty-two participants were randomized to the secondary stroke prevention (STOP) (N = 27) or usual care (N = 25) group. The STOP program consisted of 3 culturally tailored information sessions and goal-setting activities that were delivered in person by a research assistant. Participants were assessed at baseline and 4-week follow-up for stroke knowledge, exercise, fruit and vegetable consumption, tobacco and alcohol use, and medication adherence (primary outcomes) and anxiety and depression (moderator variables). Between-groups analysis of covariance and logistic multiple regressions revealed significant between-group differences for stroke knowledge, tobacco use and moderating effects between tobacco and anxiety, and improved alcohol use. The STOP program decreased secondary stroke risk factors among underserved racial/ethnic minorities and should be tested in large-scale trials.