A combination of depression and alcohol use disorder (AUD) is a typical and most common example of a dual diagnosis at the intersection of general psychiatry and addiction psychiatry. A comorbidity of depression and AUD is more common than it can be brought about by mere coincidence, which might be explained to some extent by the synergetic effect of both diseases, with each of them complicating the course and worsening the prognosis of the other. Treatment protocols for patients with depression and comorbid AUD include antidepressants, specific medications for alcohol dependence, and psychotherapy. The first-line antidepressants in the treatment of patients with a comorbid combination of depression and alcohol use disorder, as in other clinical situations implying use of antidepressants, are selective serotonin reuptake inhibitors (SSRIs). Fluvoxamine has certain advantages over the other SSRIs in the treatment of patients with a depression and comorbid AUD.