About 9% of those who experiment with marijuana eventually become dependent according to DSM-IV (1994) criteria. A 2013 review estimates daily use is associated with a 10-20% rate of dependence. The highest risk of cannabis dependence is found in those with a history of poor academic achievement, deviant behavior in childhood and adolescence, rebelliousness, poor parental relationships, or a parental history of drug and alcohol problems. Of daily users, about 50% experience withdrawal upon cessation of use (i.e. are dependent), characterized by sleep problems, irritability, dysphoria, and craving. Cannabis withdrawal is less severe than withdrawal from alcohol.
One area where CBD is clearly helpful: the treatment of seizures associated with one form of epilepsy. A 2017 New England Journal of Medicine study found ingesting oral CBD dramatically cut down most patients’ seizure frequency—a finding that prompted the FDA to support the approval of one CBD drug for use in the treatment of some epilepsy patients.
^ Jump up to: a b c d Boggs, Douglas L; Nguyen, Jacques D; Morgenson, Daralyn; Taffe, Michael A; Ranganathan, Mohini (6 September 2017). "Clinical and preclinical evidence for functional interactions of cannabidiol and Δ9-tetrahydrocannabinol". Neuropsychopharmacology. 43 (1): 142–154. doi:10.1038/npp.2017.209. ISSN 0893-133X. PMC 5719112. PMID 28875990.
Hemp oil is an oil extracted from the hemp plant. All plants in the Cannabis genus can produce the oil, but usually only industrial hemp is used to make hemp oil. Industrial hemp is a hemp varietal which has been cultivated specifically for industrial production, and it has a minimum of the psychoactive substances associated with the genus, most notably THC. Hemp oil is typically almost free of THC, and it has no psychoactive properties.
If you live in a state where cannabis is illegal, you might have a difficult time acquiring legitimate CBD oil in a retail location. Most people turn to the Internet in an effort to buy CBD online, and typically find a range of stores all claiming to sell the best stuff and ship it right to your house. The problem is that there are no testing regulations of these products, so the effectiveness and safety of many of these products has not been proven. Therefore, the onus falls on the manufacturer to be honest about how much CBD is actually in the oil, where the starting material was grown and how it's been extracted. The FDA actually issued a warning for making false claims of effectiveness and medicinal benefits because so many illegitimate companies sell snake oil marketed as CBD that doesn't do anything (here's how to avoid that). Despite all these challenges, if you know what you're buying, hemp-derived CBD oil as a product itself is not illegal.
After revisions to cannabis scheduling in the UK, the government moved cannabis back from a class C to a class B drug. A purported reason was the appearance of high potency cannabis. They believe skunk accounts for between 70 and 80% of samples seized by police (despite the fact that skunk can sometimes be incorrectly mistaken for all types of herbal cannabis). Extracts such as hashish and hash oil typically contain more THC than high potency cannabis flowers.
*The legal landscape around CBD is unclear and changing rapidly both at the Federal and State level. The information on our website and any other communication regarding legality which you may receive from any representative of Green Roads is for informational purposes only and not for the purpose of providing legal advice. You must make your own judgment regarding whether you should purchase CBD in your jurisdiction. You should contact your attorney to obtain more specific guidance.*
The endocannabinoid system is tonically active in control of pain, as demonstrated by the ability of SR141716A (rimonabant), a CB1 antagonist, to produce hyperalgesia upon administration to mice (Richardson et al 1997). As mentioned above, the ECS is active throughout the neuraxis, including integrative functions in the periacqueductal gray (Walker et al 1999a; Walker et al 1999b), and in the ventroposterolateral nucleus of the thalamus, in which cannabinoids proved to be 10-fold more potent than morphine in wide dynamic range neurons mediating pain (Martin et al 1996). The ECS also mediates central stress-induced analgesia (Hohmann et al 2005), and is active in nociceptive spinal areas (Hohmann et al 1995; Richardson et al 1998a) including mechanisms of wind-up (Strangman and Walker 1999) and N-methyl-D-aspartate (NMDA) receptors (Richardson et al 1998b). It was recently demonstrated that cannabinoid agonists suppress the maintenance of vincristine-induced allodynia through activation of CB1 and CB2 receptors in the spinal cord (Rahn et al 2007). The ECS is also active peripherally (Richardson et al 1998c) where CB1 stimulation reduces pain, inflammation and hyperalgesia. These mechanisms were also proven to include mediation of contact dermatitis via CB1 and CB2 with benefits of THC noted systemically and locally on inflammation and itch (Karsak et al 2007). Recent experiments in mice have even suggested the paramount importance of peripheral over central CB1 receptors in nociception of pain (Agarwal et al 2007)