Abstract
INTRODUCTION: Parkinson's disease (PD) and schizophrenia can coexist. Antipsychotics block striatal D2 receptors, which inevitably aggravates the manifestations of PD. CASE REPORT: We report the case of a male patient with idiopathic Parkinson's disease and schizophrenia, with poor tolerance to minimal doses of levodopa, who underwent a dramatic improvement after bilateral subthalamic deep brain stimulation (DBS-STN). DBS-STN was taken into consideration here, due to the severity of this particular case, as the only possible way to achieve motor improvement. CONCLUSIONS: The diagnosis of idiopathic PD was confirmed despite antidopaminergic treatment. DBS-STN can be considered a treatment option for disabling manifestations of PD, provided that a careful selection of patients is carried out..