Cannabidiol Oil for Decreasing Addictive Use of Marijuana Written by Dr. Janet Opila-Lehman, ND, OTL on December 17, 2016. Posted in Articles, Recent Publications. “Cannabidiol Oil for Decreasing Addictive Use of Marijuana” A Case Report” by Dr. Scott Shannon, MD and Dr. Janet Opila-Lehman, ND. Integrative Medicine, Vol 14, No. 6, Dec. 2015. Previous Next