All of this makes CBD remarkably difficult for even the most dedicated health care providers to manage safely. Dr. Kelly Knupp, an associate professor of pediatrics and neurology at the University of Colorado, and the director of the Dravet Syndrome program at Children’s Hospital Colorado, said families of epileptic children have tried to bring CBD oils to the hospital for testing. “They’re just concerned that they don’t know exactly who’s growing [the hemp],” Knupp said. “They know it’s not being regulated.” But because CBD is a Schedule I controlled substance, high-tech, regulated laboratories, like those at the University of Colorado, can’t accept, store, or test CBD oils, lest they risk prosecution. “There is no such lab that can take that product,” Knupp said, which leaves any testing up to the unregulated testing centers that cater to the cannabis industry.

In the 1970s, President Nixon declared a “War on Drugs” and signed into law the Controlled Substances Act of 1970. This law established a set of banned drugs and created the Drug Enforcement Administration (DEA). It also unintentionally outlawed one of the world’s oldest domesticated crop, hemp. This not only led to the demise of hemp, but also an increased misconception of the plant.
Preclinical research suggests that emetic circuitry is tonically controlled by endocannabinoids. The antiemetic action of cannabinoids is believed to be mediated via interaction with the 5-hydroxytryptamine 3 (5-HT3) receptor. CB1 receptors and 5-HT3 receptors are colocalized on gamma-aminobutyric acid (GABA)-ergic neurons, where they have opposite effects on GABA release.[35] There also may be direct inhibition of 5-HT3 gated ion currents through non–CB1 receptor pathways. CB1 receptor antagonists have been shown to elicit emesis in the least shrew that is reversed by cannabinoid agonists.[36] The involvement of CB1 receptor in emesis prevention has been shown by the ability of CB1 antagonists to reverse the effects of THC and other synthetic cannabinoid CB1 agonists in suppressing vomiting caused by cisplatin in the house musk shrew and lithium chloride in the least shrew. In the latter model, CBD was also shown to be efficacious.[37,38]

^ Jump up to: a b c This paper begins with a history of hemp use and then describes how hemp was constructed as a dangerous crop in the U.S. The paper then discusses the potential of hemp as an alternative crop. Luginbuhl, April M. (2001). "Industrial hemp (Cannabis sativa L): The geography of a controversial plant". The California Geographer (PDF). 41. California Geographical Society. pp. 1–14. Retrieved 2013-03-28. Hemp contains less than 1% THC, or tetrahydrocannabinols, the psychoactive property in marijuana. In other words, smoking hemp cannot create a 'high.' ... The dense growth of hemp eliminates other weeds.... The best growing technique for hemp, planting 300 to 500 plants per square meter, also helps authorities easily tell the hemp from marijuana, which is a plant that is less densely cultivated. (Roulac 1997; 149).
A short-term Advisory Board has been appointed to serve through the development of the rules and regulations. The rules and regulations themselves will identify the guidelines for formation of the Advisory Board, so upon adoption of the rules and regulations an Advisory Board will be created which will continue on a regular basis beyond that point. 
Cultivated industrial hemp plants usually consist of a spindly main stalk covered with leaves. Considered a low-maintenance crop, hemp plants typically reach between 6 to 15 feet in height. Depending on the purpose, variety and climatic conditions, the period between planting and harvesting ranges from 70 to 140 days. One acre of hemp can yield an average of 700 pounds of grain, which in turn can be pressed into about 22 gallons of oil and 530 pounds of meal. The same acre will also produce an average of 5,300 pounds of straw, which can be transformed into approximately 1,300 pounds of fiber.
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[153] (despite the fact that skunk can sometimes be incorrectly mistaken for all types of herbal cannabis).[154][155] Extracts such as hashish and hash oil typically contain more THC than high potency cannabis flowers.[156]
Yet, even with this progress, hemp businesses seem to face difficulty expanding in the US as they face challenges in traditional marketing and sales approaches. According to a case study done by Forbes, hemp businesses and startups have had difficulty marketing and selling non-psychoactive hemp products, as some online advertising platforms and financial institutions do not distinguish between hemp and marijuana.[100]
Prescription medicine (Schedule 4) for therapeutic use containing 2 per cent (2.0%) or less of other cannabinoids commonly found in cannabis (such as ∆9-THC). A schedule 4 drug under the SUSMP is Prescription Only Medicine, or Prescription Animal Remedy – Substances, the use or supply of which should be by or on the order of persons permitted by State or Territory legislation to prescribe and should be available from a pharmacist on prescription.[74] 

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