doctor more comfortable. he started to use cannabis in his practice as an alternative to opioids. 80% of his patients, hundreds of patients, were weaned off of pills using pot. >> how are you? >> nice to meet you. >> you, too. >> patients like mark schechter. >> feeling okay right now? >> feeling pretty good. >> which is amazing when you consider mark has an extremely painful spinal disorder that left him partially paralyzed ten years ago. >> nerve pain was something i never experienced before in my life. >> relentless and chronic, doctors offered opioids. percocet. oxycontin. fentanyl. >> roughly ten tablets, different medications, a day. >> yeah. >> every day? >> every day. i had doubts how well they were working. >> almost 4,000 pills a year. >> yes. >> ten years. 40,000 pills roughly. 40,000 pills. that really didn't do anything for you.