Myrcene and Other Terpenes Debunked: What Are Their Roles in Medical Cannabis? Myrcene, Linalool, Caryophyllene. Wondering what these are and how they work? If you are interested in using medical-grade cannabis as an alternative to traditional medications for conditions like chronic pain and Alzheimer's disease, you've probably heard of terpenes.  In a nutshell, terpenes are…