The National Institute of Drug Abuse has awarded Department Vice Chair Nicole Ennis, Ph.D. and University of Florida Health Professor Sherrilene Classen, Ph.D. a $3.3 million R01 to support a groundbreaking study investigating the effects of long-term medical marijuana use, alone and in combination with prescription opioids, on driving performance in adults aged 50 and older. This is currently the only study in the U.S. using an open-road driving performance task to examine medical marijuana and aging.

This research will focus on individuals who use medical marijuana daily for 12 months or more, examining how this use, alongside opioid treatments for chronic pain, may influence driving performance. With older adults representing a rapidly growing segment of medical cannabis users, and the importance of driving to maintain independence in this population, this study is poised to provide vital insights into public safety, pain management, and aging.

By addressing a major gap in current research, this project has the potential to inform clinical guidelines and influence policy while enhancing the well-being and autonomy of older adults.