Safety and efficacy of combined clozapine-azathioprine treatment in a case of resistant schizophrenia associated with Behçet's disease: a 2-year follow-up.

Abstract Behcet's disease (BD) is a recurrent inflammatory disorder involving multisystems of the body. Neuropsychiatric symptoms, like psychosis and depression, often occur in BD, but the safety and efficacy of combined clozapine–azathioprine treatment have never been assessed. We here report on a 37-year-old man with BD and treatment-resistant schizophrenia who obtained an improvement following the introduction of clozapine in addition to azathioprine, without developing agranulocytosis or other severe adverse side effects during a 2-year follow-up.