This randomized controlled trial will evaluate the effectiveness of a psychosocial intervention designed to improve treatment adherence in Veterans with comorbid bipolar disorder and substance use disorders (BP-SUD) following a psychiatric hospitalization. Participants will be randomized to either the specialized psychosocial intervention or an enhanced safety monitoring program, both as adjuncts to VA treatment as usual. Veterans with BP-SUD will be recruited from the Providence VAMC inpatient psychiatric unit and assessed at baseline and at 3 (mid-treatment), 6 (post-treatment), and 9-month post-discharge.
