Thanks to prohibition and a resulting lack of cannabis research, US medical marijuana patients often have to spend buckets of money on self-experimentation to figure out which cannabis products best help their ailments. That's why Otha Smith III developed Tetragram; the app that helps medical marijuana patients identify specific marijuana products that could work best for them.This episode, Otha tells host Brit Smith how he started using cannabis in 2006 after a serious car crash that almost left him dead. After weening off opioids, he found learning how and when to use marijuana for his injuries wasn’t an easy process for a novice patient like him. So he developed the Tetragram app, which offers a diary feature to help medical patients track their experiences with different cannabis products. It also allows users to share what they’ve found works for them, building a community of patients with anecdotal evidence to help others avoid the costly path of trial-and-error with legal weed. In lieu of extensive medical research, Tetragram is helping MMJ patients across the US learn how to effectively use medical cannabis for themselves, and it's providing some very insightful data on what medical patients are using cannabis to treat. Learn more at tetragramapp.comFollow us on social media @DifferentLeaf and @Different_Leaf and follow host Brit Smith @BritTheBritishBuy any issues of Different Leaf magazine at DifferentLeaf.com or find your local in-person retailer at Differentleaf.com/on-the-newsstandFind our new merch line at XDifferentLeaf.com