Dissemination of VMAT-2 Inhibitors

The findings illustrate a yearly increase in Medicare prescription volume for deutetrabenazine and valbenazine after FDA approval, with neurologists and psychiatrists as primary prescribers of deutetrabenazine and valbenazine, respectively. There was a statistical difference in the prescription volume between those who received industry payments and those who did not, suggesting that receipt of payments may be associated with prescription volume. Nonconsulting services constituted the largest sum of industry payments for both medications. Further research exploring the causative factors of new medication uptake is needed to better understand how medications disseminate across the market.