There are two main cannabinoids in the cannabis plant that are believed to have medicinal properties: tetrahydrocannabinol (THC) and cannabidiol (CBD). THC is the cannabinoid that is responsible for the “high” associated with marijuana use, while CBD does not have any psychoactive effects.
Medical marijuana is currently legal in 29 states and Washington, D.C., for the treatment of various conditions. However, the use of medical marijuana is still controversial, and some oppose it because of its potential health risks.