Medical Cannabis Market Overview and Analysis Cannabis, also known as marijuana among other names, is a psychoactive drug from the cannabis plant. Native to Central or South Asia, the cannabis plant has been used as a drug for both recreational and entheogenic purposes and in various traditional medicines for centuries. Tetrahydrocannabinol (THC) is the main psychoactive component of cannabis, get more info @ https://www.datalibraryresearch.com/market-analysis/medical-cannabis-market-4877