This qualitative study was carried out to determine the burden of care on Turkish caregivers of patients with substance use disorder. The sample included relatives of 42 patients hospitalized in the Akdeniz University Alcohol and Drug Addiction Research and Application Center. Individual in-depth, open semi-structured interviews were used for data collection. Moreover, demographic questions and an interview guide with questions were also used. According to the results of this study, the following themes were evaluated: difficulties experienced, coping, and needs.