Marijuana is the most commonly used illegal drug. The hemp plant Cannabis sativa, from which marijuana grows throughout the world, flourishes in most temperate and tropical regions. Marijuana is commonly ingested by smoking, which increases the bioavailability of the primary psychoactive constituent, tetrahydrocannabinol (THC) (Musty et al., 1995; Hall and Solowij, 1998). Inhalation of marijuana smoke produces euphoria, signs of increased sympathetic nervous system activity, and decreased parasympathetic nervous system activity (Schwartz, 1987). At high doses, however, sympathetic activity is inhibited and parasympathetic activity is increased, leading to bradycardia and hypotension. Reversible ECG abnormalities have been reported, as have increases in supraventricular and ventricular ectopic activity (Ghuran and Nolan, 2000). The clinical relevance of this finding is unclear.

The AKC Canine Health Foundation (CHF) is currently sponsoring a study, through the Colorado State University’s College of Veterinary Medicine and Biomedical Sciences, that will evaluate the use of CBD in treatment-resistant epileptic dogs. The CHF hopes that this will be the first study to gain scientific data on the use of CBD in dogs with this condition.
Another concern is about medications with which CBD might interact. This won’t be an issue with most drugs, says Sunil Kumar Aggarwal, M.D., Ph.D., a palliative medicine physician and scientist who studies cannabis and integrates it into his Seattle medical practice. The exceptions are blood thinners, IV antibiotics, and other drugs whose exact dosing is crucial and must be monitored closely, he says. (Of course, if you have a health problem, talk to your doctor before using CBD, and never take it instead of seeing your physician for a serious condition.)
There are a few other snags to CBD studies. First and foremost, many CBD studies involve rats rather than humans. Scientists have already proven that CBD is effective in treating rare forms of epilepsy, but there haven’t been many human studies looking into if and how exactly it works to manage pain. But, various animal studies have given hints. For one, a rodent study that was published in the European Journal of Pain found that topical CBD helped to lower arthritis-related inflammation and pain.
Cannabis contains a seemingly unique class of chemicals, the cannabinoids, of which more than 60 have been described, but only a few are psychoactive. Cannabinoids are produced in specialized epidermal glands, which differ notably in distribution on different organs of the plant (high concentrations occur on the upper surface of the young leaves and young twigs, on the tepals, stamens, and especially on the perigonal bract). Given this distribution, the glands would seem to be protective of young and reproductive above-ground tissues (the roots lack glands). Two classes of epidermal glands occur—stalked and sessile (Fig. 8), but in either case the glandular cells are covered by a sheath under which resin is accumulated, until the sheath ruptures, releasing resin on the surface. The resin is a sticky mixture of cannabinoids and a variety of terpenes. The characteristic odor of the plant is due to the abundant terpenes, which are not psychoactive. The more important cannabinoids are shown in Fig. 9. In the plant the cannabinoids exist predominantly in the form of carboxylic acids, which decarboxylate with time or when heated. Delta-9-tetrahydrocannabinol (D9-THC, or simply THC) is the predominant psychoactive component. Other THC isomers also occur, particularly D8-THC, which is also psychoactive. Technically, the euphoric psychological effects of THC are best described by the word psychotomimetic. Cannabidiol (CBD) is the chief non-psychotomimetic cannabinoid. A THC concentration in marijuana of approximately 0.9% has been suggested as a practical minimum level to achieve the (illegal) intoxicant effect, but CBD (the predominant cannabinoid of fiber and oilseed varieties) antagonizes (i.e. reduces) the effects of THC (Grotenhermen and Karus 1998). Concentrations of 0.3% to 0.9% are considered to have “only a small drug potential” (Grotenhermen and Karus 1998). Some cannabinoid races have been described, notably containing cannabichromene (particularly in high-THC forms) and cannabigerol monomethyl ether (in some Asian strains). The biosynthetic pathways of the cannabinoids are not yet satisfactorily elucidated, although the scheme shown in Fig. 10 is commonly accepted. At least in some strains, THC is derived from cannabigerol, while in others it may be derived from CBD. CBN and D8-THC are considered to be degradation products or analytical artifacts (Pate 1998a).
And whether or not you obtain a bank account for your cannabis dispensary, you’ll have to pay higher taxes than virtually any other industry. This is a result of federal Tax Code 280E. It prevents all plant-touching businesses -- companies that deal directly with the plant, rather than with accessories and ancillary services -- from deducting business expenses and using tax credits. Equipment, rent, insurance, advertising… cannabis dispensaries cannot deduct any of these expenses. This brings the average taxes paid by a weed business to around 70 percent.
Queensland has allowed industrial production under licence since 2002,[76] where the issuance is controlled under the Drugs Misuse Act 1986.[77] New South Wales now issues licences[78] under a law, the Hemp Industry Regulations Act 2008 (No 58), that came into effect as of 6 November 2008.[79] Most recently, South Australia legalized industrial hemp under South Australia’s Industrial Hemp Act 2017, which commenced on 12 November 2017.[80]

Fig. 2. Cannabis sativa. This superb composite plate by artist Elmer Smith, often reproduced at a very small scale and without explanation in marijuana books, is the best scientific illustration of the hemp plant ever prepared. 1. Flowering branch of male plant. 2. Flowering branch of female plant. 3. Seedling. 4. Leaflet. 5. Cluster of male flowers. 6. Female flower, enclosed by perigonal bract. 7. Mature fruit enclosed in perigonal bract. 8. Seed (achene), showing wide face. 9. Seed, showing narrow face. 10. Stalked secretory gland. 11. Top of sessile secretory gland. 12. Long section of cystolith hair (note calcium carbonate concretion at base). Reproduced with the permission of Harvard University, Cambridge, MA.
The word cannabis is from Greek κάνναβις (kánnabis) (see Latin cannabis),[135] which was originally Scythian or Thracian.[136] It is related to the Persian kanab, the English canvas and possibly even to the English hemp (Old English hænep).[136] In modern Hebrew, קַנַּבּוֹס qannabōs (modern pronunciation: [kanaˈbos]) is used but there are those who have theorized that it was referred to in antiquity as קני בושם q'nei bosem, a component of the biblical anointing oil.[137][138] Old Akkadian qunnabtu, Neo-Assyrian and Neo-Babylonian qunnabu were used to refer to the plant meaning "a way to produce smoke".[139][140][141]
By definition, ointments must be infused with medicine, in this case CBD, and are of a semi-solid almost mucus-like consistency. Creams typically involve water or some type of aqueous substance as their base, while salves utilize only oils or waxes for their foundation. Ointments tend to contain a combination of oils, water and alcohols within their formulation.
In Japan, hemp was historically used as paper and a fiber crop. There is archaeological evidence cannabis was used for clothing and the seeds were eaten in Japan back to the Jōmon period (10,000 to 300 BC). Many Kimono designs portray hemp, or asa (Japanese: 麻), as a beautiful plant. In 1948, marijuana was restricted as a narcotic drug. The ban on marijuana imposed by the United States authorities was alien to Japanese culture, as the drug had never been widely used in Japan before. Though these laws against marijuana are some of the world's strictest, allowing five years imprisonment for possession of the drug, they exempt hemp growers, whose crop is used to make robes for Buddhist monks and loincloths for Sumo wrestlers. Because marijuana use in Japan has doubled in the past decade, these exemptions have recently been called into question.[150]
CBD works primarily by interacting with your pets’ endocannabinoid system, a system present in all mammals. The endocannabinoid system, put simply, is an inter-related system of receptors and chemicals that work together to maintain homeostasis, or balance, in your pet’s body. Its effects range from appetite control to mood and pain regulation and immune support, and much more.
The safety and risks of using CBD for dogs have not yet been researched. The U.S. Food and Drug Administration has not approved CBD and has not issued a dosing chart. Therefore, we do not know what size dosage would be toxic. Any medication or supplement carries the risk of a reaction. It is always advisable, when giving your dog something new, to start out with small amounts and then closely monitor the effects. And always check with your veterinarian first.
Cultivated in at least 30 countries, monikers for the hemp plant often allude to its origin or use, such as Manila hemp (abacá, Musa textilis), sisal hemp (Agave sisalana), Indian hemp (Apocynumcannabinum) and New Zealand hemp (Phormiumtenax). Worldwide, hemp seed production alone has soared from around 33,000 metric tons in the late ’90s to more than 100,000 metric tons annually between 2005 and 2011.

Over the last few years, the popularity of CBD has expanded dramatically. The Food and Drug Administration (FDA) recently approved CBD for the treatment of two severe forms of epilepsy, which makes it the first marijuana-derived drug to be approved at a federal level. One of the reasons that society has taken so well to CBD is because it doesn’t have any psychoactive effects. Essentially, you can enjoy all the therapeutic benefits of cannabis without getting high.

While CBD can be extracted from non-hemp varieties of the plant, hemp-derived CBD is less restricted by the government because of its inherently low levels of THC. CBD from hemp is legal for sale in most US states, while CBD products derived from non-hemp varieties can contain noticeable amounts of THC, and are therefore subject to stricter laws and regulations.

And the final nail in industrial hemp’s proverbial coffin: Federal law in the United States prohibits the use of hemp leaves and flowers to make drug products. That said, isolating CBD nullifies these distinctions, rendering its source irrelevant as CBD isolate contains nothing but CBD. In this case, the differences between industrial hemp and whole-plant marijuana are far less significant.

AC/DC: A Sativa-dominant phenotype of Cannatonic, this cultivar boasts one of the highest ratios of CBD to THC, clocking in at 20:1. AC/DC is claimed to help reduce pain, anxiety, depression and migraines while reducing symptoms in patients with epilepsy, some forms of cancer, and multiple sclerosis. This cultivar’s pinene-rich terpene profile offers potent clear-headed pain relief.

A customer of mine knew of my troubles and suggested I try cbd. I was skeptical at first, worried it was just a “fad”. The first time I used my CBD Daily Intesive Cream I was astonished. Minutes after applying to my neck and shoulders I felt relief. For the first time in years I am able to sleep comfortably, work comfortably and get back to heavier workouts that I enjoyed before.
According to DSM-V criteria, 9% of those who are exposed to cannabis develop cannabis use disorder, compared to 20% for cocaine, 23% for alcohol and 68% for nicotine. Cannabis abuse disorder in the DSM-V involves a combination of DSM-IV criteria for cannabis abuse and dependence, plus the addition of craving, minus the criterion related to legal troubles.[117]

I have a brother in law who has been diagnosed with cataplexy and narcoplexy, where he starts quivering and slowly loses control of his body and goes into a sleep, which causes him to drop to the ground with mild seizures while he is out. He lives alone (59 years old), but has smoked cannabis since he (we) were teenagers. He still smokes, and is on medication twice a day for this condition, but if he misses those meds by even half an hour, he is at risk of these seizures. The sad part is, these seizures are usually brought on by the smallest emotional change, usually tension, excitement or, the worst thing, if something he finds funny and is the least bit tickled about and starts to laugh, this process will immediately begin. Does anyone know if this kind of condition is treatable with cbd oil’s or concentrates? As I said, he smokes weed, and often grows his own, but he does it for the high and relaxation advantage, since he is basically home-bound due to this condition ending his work career about 4 years ago. Thanks for any replies. I’d be overjoyed if I could tell him there’s a possible solution to the problem other than his prescriptions. Or even if it worked WITH his meds to keep from having to live such a sedentary life.

The earliest recorded uses date from the 3rd millennium BC.[32] Since the early 20th century, cannabis has been subject to legal restrictions. The possession, use, and sale of cannabis is illegal in most countries of the world.[33][34] Medical cannabis refers to the physician-recommended use of cannabis, which takes place in Canada, Belgium, Australia, the Netherlands, Germany, Spain, and 33 U.S. states.[35][36] In September 2018, cannabis was legalized in South Africa[37] while Canada legalized recreational use of cannabis in October 2018.[38]
The Gateway Hypothesis states that cannabis use increases the probability of trying "harder" drugs. The hypothesis has been hotly debated as it is regarded by some as the primary rationale for the United States prohibition on cannabis use.[261][262] A Pew Research Center poll found that political opposition to marijuana use was significantly associated with concerns about health effects and whether legalization would increase marijuana use by children.[263]