Dr. David Bearman, Contributor
I am a California M.D. who specializes in pain management, harm reduction and medical cannabis

Many of these cannabinoids have therapeutic value and CBD is no exception. It is a non-psychotropic cannabinoid, meaning it does not contribute to the euphoria associated with certain strains of cannabis. It is, however, psychoactive, because it crosses the blood-brain barrier. Unlike THC, CBD can be administered at relatively high doses without undesired psychological side effects. CBD also has the effect of reducing the undesirable effects of high-THC cannabis, such as anxiety and paranoia, which allows a patient to ingest more THC, which has its own incredible medical effects. CBD is a powerful anti-epileptic, anti-depressant, anti-inflammatory, anti-nauseate, sleep aid, muscle relaxant, sedative and anti-proliferative.

Source: Cannabidiol (CBD), A Primer | The Huffington Post