In 2000, The nonpsychoactive cannabis constituent cannabidiol is an oral anti-arthritic therapeutic in murine collagen-induced arthritis

BACKGROUND: The therapeutic potential of cannabidiol (CBD), the major nonpsychoactive component of cannabis, was explored in murine collagen-induced arthritis (CIA). CBD treatment commenced at the first clinical signs of arthritis

You can read the full article here => http://www.pnas.org/content/97/17/9561.full