Mirtazapine Monotherapy for Antipsychotics-refractory Psychosis in a Patient with Very-late-onset Schizophrenia-like Psychosis: A Case Report

Very -late -onset schizophrenia -like psychosis (VLOSLP) is a condition in which psychotic symptoms emerge after the age of 60 years. Given its heterogeneous nature, VLOSLP remains a diagnostic and therapeutic dilemma. Here, we report a case of a 68 -year -old patient with psychosis refractory to antipsychotics who was successfully treated with mirtazapine monotherapy. This case suggests that mirtazapine monotherapy may be effective for the treatment of patients with antipsychotic -refractory VLOSLP.