Schizophrenia with Co-morbid Obsessive-Compulsive Disorder: A Case Series

Abstract

The frequency of co-morbidities like Obsessive Compulsive Disorder (OCD) is common in schizophrenia. Some studies have reported earlier age of onset, more positive and negative symptoms, more depressive symptoms, and worse prognosis in such patients. The phenomenology and management of OCD in schizophrenia is understudied. Evidence claims that the course of illness of both schizophrenia and bipolar disorders may be affected by obsessive-compulsive disorder whereas in other cases antipsychotic induced obsessive-compulsive symptoms have been observed. A meta-analysis of of schizophrenia and its co-morbid psychiatric conditions, found a prevalence of 12.1% for obsessive compulsive disorder, 9.8% for panic disorders, 12.4% for post-traumatic stress disorder and 14.9% for social phobia. SGAs like amisulpride and aripiprazole are found to be useful in the treatment of comorbid OCD in schizophrenia due to their negligible serotonergic properties. A combination of selective serotonin reuptake inhibitors (SSRI) with antipsychotics has been recommended by the American Psychiatric Association (APA) for treatment of comorbid OCD in schizophrenia. Escitalopram at a dose of 20 mg/day has been found to be beneficial in such cases while psychosis worsened with the use of fluvoxamine and clomipramine. Below is a series of seven cases of schizophrenia with co-morbid obsessive-compulsive symptoms who are on treatment for their illness from the psychiatric outpatient department of a rural hospital in central India.