Medical marijuana laws still vary across the United States, and barriers persist for patients and providers, including fear of addiction and side effects as well as safety, financial, and legal concerns. Carey Clark, PhD, RN, AHN-BC, of the University of Maine at Augusta, Jacquelyn Bainbridge, PharmD, FCCP, from the University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, and Lisa Kennedy Sheldon, PhD, APRN-BC, AOCNP®, FAAN, chief clinical officer at the Oncology Nursing Society, discussed the latest in medical marijuana laws and usage during a session at the 42nd Annual Congress in Denver, CO.