HIV/AIDS patients with medication adherence problems are vulnerable to developing drug resistance, immune system degradation, and opportunistic infections. Poor adherence to antiretroviral medication regimens can be aggravated by psychiatric problems, including depression and posttraumatic stress disorder. This article presents the case study of a patient with HIV/AIDS who was unable to adhere to his antiretroviral medication regimen primarily because of PTSD and depressive symptoms resulting from a sexual assault that had caused his seroconversion. Exposure-based cognitive-behavioral therapy was instrumental in helping the patient overcome his PTSD and depressive symptoms so that he could tolerate his HIV medications. The patient's symptom relief was evidenced by improved scores on the Impact of Event Scale and Beck Depression Inventory. The article discusses the importance of accurate assessment, therapist flexibility, and principle-based treatment versus strict adherence to manual-based protocols. (Contains 2 figures and 1 table.)