In the meantime, some physicians are forging ahead — and cashing in. Joe Cohen is a doctor at Holos Health, a medical marijuana clinic in Boulder. I asked him what CBD is good for, and he read me a long list of conditions: pain, inflammation, nausea, vomiting, intestinal cramping, anxiety, psychosis, muscle spasms, hyperactive immune systems, nervous system degeneration, elevated blood sugar and more. He also claimed that CBD has anti-cancer properties and can regenerate brain cells and reduce the brain’s levels of amyloid beta — a kind of protein that’s been linked to Alzheimer’s disease. I asked for references, noting that most of these weren’t listed in the Academies report or a similar review published in the Journal of the American Medical Association. “I think you just have to Google search it,” he said. It’s true that a preliminary study found hints that cannabinoids might reduce beta amyloid proteins in human brain cells, but the study was done in cells grown in a lab, not in people. As for cancer, the FDA sent warning letters last year to four companies that were selling products that claimed to “prevent, diagnose, treat or cure” cancer.
Zuardi, A. W., Crippa, J. A., Hallak, J. E., Bhattacharyya, S., Atakan, Z., Martin-Santos, R., … & Guimarães, F. S. (2012). A critical review of the antipsychotic effects of cannabidiol: 30 years of a translational investigation [Abstract]. Current Pharmaceutical Design, 18(32), 5,131–5,140. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/22716160
Cost is another consideration. Most CBD oils are sold in concentrations of 300 to 750 mg, although this may range from less than 100 mg to more than 2,000. A good indicator of price-point is the cost per milligram. Low-cost CBD oils usually fall between five and 10 cents per mg; mid-range prices are 11 to 15 cents per mg; and higher-end oils cost 16 cents per mg or higher. Given these varying per-milligram costs, a bottle of CBD oil may be priced anywhere from $10 or less to $150 or more.
CBD may help reduces REM behavior disorder in people with Parkinson’s disease. REM behavior disorder is a condition that causes people to act out physically during dreaming and REM sleep. Typically, during REM, the body is largely paralyzed, a state known as REM atonia. This immobilization keeps sleepers from reacting physically to their dreams. In REM behavior disorder, this paralysis doesn’t occur, leaving people free to move—which can lead to disruptive sleep and to injuring themselves or their sleeping partners. Cannabis may also work to reduce pain and improve sleep quality in people with Parkinson’s disease.
CBD oil derived from whole-plant marijuana has seen promising results for numerous medical treatments, including treating children with epilepsy. (In 2013, CNN’s Dr. Sanjay Gupta introduced the world to a child who after using CBD oil went from having 300 seizures a month to only two.) On April 19, the AP reported that an FDA panel is reviewing a a pharmaceutical-grade CBD oil made from whole-plant marijuana called Epidiolex, a possible treatment for rare forms of pediatric epilepsy. If approved, it would be the first marijuana-made medication sold on the U.S. market. A day later, on the marijuana community’s “high holiday,” April 20, New York Senator Chuck Schumer introduced legislation to decriminalize marijuana on the federal level. Forecasters are predicting that legal cannabis in the U.S. will be outselling soda by 2030.
It may have something to do with the fact that THC stimulates that CB1 receptor a lot, in turn triggering the psychoactive effects of marijuana like disturbed sensory perception, impaired motor skills, and anxiety. Conversely, CBD stimulates CB1 very lightly, causing some effects that seem downright opposed to those of THC including relief from anxiety, stress, and hyper-excitability.
Scientific and clinical studies indicate that CBD could be effective in easing symptoms of a wide range of difficult-to-control conditions, including: rheumatoid arthritis, diabetes, alcoholism, PTSD, epilepsy, antibiotic-resistant infections and neurological disorders. CBD has demonstrated neuroprotective effects, and its anti-cancer potential is currently being explored at several academic research centers in the U.S. and other countries.
A 2016 review of animal studies indicated that cannabidiol has potential as an anxiolytic for relief of anxiety-related disorders and fear. Reviews of preliminary research showed cannabidiol has potential for improving addictive disorders and drug dependence, although as of 2016, they indicated limited high-quality evidence for anti-addictive effects in people. A 2007 study on aggressive breast cancer cells demonstrated that cannabidiol was found to reduce the growth rate and invasiveness of breast cancer cells by acting to down-regulate Id-1 expression. 
Industrial Hemp Oil is also from the Cannabis Sativa plant and is the same as Hemp Oil or Hemp Seed OIl. Compared to cannabis Indica, cannabis Sativa (industrial hemp variety) has a much stronger fiber. This fiber can be used in anything from rope and blankets to paper. Marijuana fiber has a low tensile strength and will break or shred easily, making it a poor fibrous plant when compared to industrial hemp. Industrial hemp has low THC levels compared to marijuana specifically cultivated for personal psychoactive use. The reason for the low THC content in hemp is that most THC is formed in resin glands on the buds and flowers of the female cannabis plant. Industrial hemp is not cultivated to produce buds, and therefore lacks the primary component that forms the marijuana high. Furthermore, industrial hemp has higher concentrations of a chemical called Cannabidiol (C B D).
Currently, the only official, FDA-approved use of CBD is as a component in a drug named Epidiolex, which will be used to treat severe forms of epilepsy in children and adults, and which will be, Carson hopes, available to patients by the end of the year. Carson says he developed an interest in CBD because parents of kids with epilepsy came to him having read about CBD’s potential benefits on the internet. “There’s lots of data now that I think really supports that CBD helps for epilepsy,” particularly in reducing the frequency of seizures, he says. Anecdotally, he noticed that the same parents reported another potential benefit associated with CBD: reduced anxiety. “I got the sense that some children did get benefits in terms of anxiety, and I think that’s where I wonder if for example CBD in coffee could potentially be helpful,” he says.
Jump up ^ Nadulski T, Pragst F, Weinberg G, Roser P, Schnelle M, Fronk EM, Stadelmann AM (December 2005). "Randomized, double-blind, placebo-controlled study about the effects of cannabidiol (CBD) on the pharmacokinetics of Delta9-tetrahydrocannabinol (THC) after oral application of THC verses standardized cannabis extract". Ther Drug Monit. 27 (6): 799–810. PMID 16306858.
The extract known as CBD oil sold in the U.S. falls into one of two categories. Crystalline isolate exclusively contains CBD, as other cannabinoids have been removed; full spectrum oil, on the other hand, retains THC and other cannabinoids, and is only sold in states where marijuana use has been legalized. CBD oil can be consumed several different ways, including ingested capsules and food products, vaporizing, tinctures, and topical creams. The soporific effects of CBD oil are linked to its concentration; low-concentration oils will produce minimal effects, while high-concentration oils will produce strong effects.