Cannabidiol (CBD) is a cannabinoid found in cannabis. It is a major constituent of the plant, representing up to 40% in its extracts.
It has displayed sedative effects in animal tests. Some research, however, indicates that CBD can increase alertness. It may decrease the rate of THC clearance from the body, perhaps by interfering with the metabolism of THC in the liver.
Medically, it has been shown to relieve convulsion, inflammation, anxiety, and nausea, as well as inhibit cancer cell growth. Recent studies have shown cannabidiol to be as effective as atypical antipsychotics in treating schizophrenia. Studies have also shown that it may relieve symptoms of dystonia.
In November 2007, it was reported that CBD reduces growth of aggressive human breast cancer cells in vitro and reduces their invasiveness.
A 2008 study published in the British Journal of Psychiatry showed significant differences in the Oxford-Liverpool Inventory of Feelings and Experiences scores between three groups: the first consisted of non-cannabis users, the second consisted of users with THC detected, and the third consisted of users with both THC and CBD detected. The THC only group scored significantly higher for unusual experiences than the THC and CBD group, whereas the THC and CBD group had significantly lower introvertive anhedonia scores than the THC only group and non-cannabis user group. This research indicates that CBD acts as an anti-psychotic and may counteract the potential psychotomimetic effects of THC on individuals with latent schizophrenia.
Read more about Cannabidiol: Medicinal Use, Pharmacology, Chemistry, Legal Status
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