Silver Book Fact
In one study, deep-brain stimulation for Parkinson’s patients significantly reduced their required dosages of antiparkinsonian medications, consequently decreasing their medication costs by 32% 1 year after surgery, and 39% 2 years after.
Charles P, Padaliya B, Newman W, Gill C, et al. Deep Brain Stimulation of the Subthalamic Nucleus Reduces Antiparkinsonian Medication Costs. Parkinsonism & Related Disorders. 2004; 10(8): 475-9. https://www.prd-journal.com/article/S1353-8020(04)00096-3/fulltext