The Overtreatment Trap: Navigating Dopamine Dysregulation Syndrome in Parkinson's Disease

Dopamine dysregulation syndrome (DDS) is a rare but significant complication of Parkinson's disease (PD), affecting approximately 3-4% of patients on long-term dopamine replacement therapy (DRT). It is characterized by an addictive pattern of DRT use that exceeds the necessary dosages for managing motor symptoms. Patients may engage in self-medication, escalating their DRT doses beyond prescribed limits, and strongly resist attempts to reduce medication. This syndrome often leads to impulsive behaviors, severe dyskinesia, and notable disruptions in social and occupational functioning. DDS is associated with a range of neuropsychiatric symptoms, including punding behaviors, hallucinations, and delusions. The management of DDS presents significant challenges, requiring a delicate balance between adequate symptom control and preventing medication overuse. We present a case of a 68-year-old woman with DDS, highlighting her symptoms and the tailored management strategies we employed to address this challenging condition.