Cannabis consumption

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Template:Cannabis sidebar Template:Reliable sources Cannabis consumption refers to the variety of ways cannabis is consumed, among which inhalation (smoking and vaporizing) and ingestion are most common. All consumption methods involve heating the plant's THCA to decarboxylate it into THC, either at the time of consumption or during preparation. Salves and absorption through the skin (transdermal) are increasingly common in medical uses, both of CBD, THC, and other cannabinoids. Each method leads to subtly different psychoactive effects due to the THC and other chemicals being activated, and then consumed through different administration routes. It is generally considered that smoking, which includes combustion toxins, comes on quickly but lasts for a short period of time, while eating delays the onset of effect but the duration of effect is typically longer.[1] In a 2007 ScienceDaily report of research conducted at the University of California–San Francisco, researchers reported that vaporizer users experience the same biological effect, but without the toxins associated with smoking.[2] Δ9-THC is the primary component when inhaled, but when eaten the liver converts this to the more psychoactive 11-hydroxy-THC form.

Inhalation

File:Sebse.jpg
Sebsi, a Moroccan long-drawtube one-hitter.

Smoking

Cannabis can be smoked with implements such as joints, blunts, bongs, and pipes. Makeshift pipes or commercial pipes may be used, or cigarette-like joint or cigar-like blunt may be smoked. Local methods have differed by the preparation of the cannabis plant before use, the parts of the cannabis plant that are used, and the treatment of the smoke before inhalation. In early times, as in some parts of Africa today, a pile of cannabis was simply laid on a fire and the smoke inhaled.[3] Archaeological evidence confirms psychoactive cannabis was smoked at least 2,500 years ago in the Pamir Mountains.[4]

Vaporization

File:Volcano Vaporizer.jpg
A Volcano forced-air vaporizer. The balloon, at top, fills with vapors and particulates, and can then be detached and inhaled from.
File:Vaporization-pipe-w-flame-filter2.png
A vaporization pipe with flame filter.
28. Insert cannabis, other herbs or essential oils here
36. Flame filter prevents flame from igniting herb which instead is heated to vaporization temperature.

A vaporizer heats herbal cannabis to Template:Convert/-, which causes the active ingredients to evaporate into a gas without burning any plant material (the boiling point of THC is Template:Convert/C).[5][6] Vaporizing releases a lower proportion of carbon monoxide and other toxic chemicals than does smoking, although the proportion may vary depending on the design of the vaporizer and the temperature at which it is set. A MAPSNORML study using a Volcano vaporizer reported 95% THC and no toxins delivered in the vapor.[7] An older study using less sophisticated vaporizers found some toxins.[8]

A pocket-sized form of vaporizer is available as of September 2013—one particular model uses a rechargeable battery, is constructed from wood, and features a removable cover.[9] Typically, portable vaporizers can only be used for liquids, feature pre-soaked wicks, and require the user to operate a cartridge. Template:Clear left

Ingestion

File:Three space brownies.jpg
Hash cakes or popularly known as space cakes are sold in coffeeshops.

As an alternative to inhalation methods, cannabis may be ingested. However, herbal cannabis must be sufficiently heated or dehydrated to cause decarboxylation of its most abundant cannabinoid, tetrahydrocannabinolic acid (THCA), into psychoactive tetrahydrocannabinol (THC).[10]

Food

File:Amsterdam-420-cannabis-products-window.jpg
Various types of cannabis foods on display in a shop window in Amsterdam

Although hashish is sometimes eaten raw or mixed with boiling water, THC and other cannabinoids are more efficiently absorbed into the bloodstream when combined with butter and other lipids or, less so, dissolved in ethanol.[11] Chocolates, brownies, space cakes, and majoun are popular methods of ingestion - which are usually called edibles. The time to onset of effects depends strongly on stomach content, but is usually 1 to 2 hours, and may continue for a considerable length of time, whereas the effects of smoking or vaporizing cannabis are almost immediate, lasting a shorter length of time.[12]

All of the active constituents enter the body when cannabis is consumed orally. It has been shown that the primary active component of cannabis, Δ9-THC, is converted to the more psychoactive 11-hydroxy-THC by the liver.[13] Titration to the desired effect by ingestion is more difficult than through inhalation, due to the long onset time for the effects.[14]

Drink

Cannabis material can be leached in high-proof spirits (often grain alcohol) to create a “Green Dragon”.

Cannabis can also be consumed as a cannabis tea and many other beverages. Although THC is lipophilic and only slightly water soluble (with a solubility of 2.8 mg per liter),[15] enough THC can be dissolved to make a mildly psychoactive tea. However, water-based infusions (liquid edibles) are generally considered to be an inefficient use of the herb.[16]

Traditional cannabis-infused drinks include the Indian drinks Bhang lassi and Bhang thandai when prepared with bhang. However, bhang, a decoction of cannabis and spices in milk, averts the issue, as milk contains the fat in which the THC is soluble and first dissolved by cooking in ghee.

Effects on people

Cannabis has both positive and negative effects. One effect that can be particularly worrisome for couples trying to conceive is a decrease in both sperm count and quality in men. (Hembree et al., 1978; Pacey et al., 2014). Furthermore, men using cannabis more than once per week have significantly lower sperm concentrations and total sperm counts than non-users, and these impairments are worsened by the use of additional recreational drugs (Gundersen et al., 2015).[17] Consumption of [cannabis produces] a wide range of psychotropic effects, such as mild euphoria, relaxation, time distortion, sensory alterations, and a general pleasant feeling.27 Compared with other psychoactive substances cannabis has a relatively low risk for toxicity because studies in animals showed that the doses needed to induce a fatal effect are well beyond that consumed by humans.[18] There are generally no reports of people fatally overdosing (dying) on marijuana alone. However, people can feel some very uncomfortable side effects, especially when using marijuana with high THC levels. There are reports of people who use marijuana seeking treatment in emergency rooms, reporting unease and shaking, anxiety, paranoia, or hallucinations, and in rare cases, extreme psychotic reactions. Learn more about drug overdoses among youth. However, marijuana use can increase risks for accidents and injuries.[19] Cannabis can cause reduced school performance. Students who smoke marijuana tend to get lower grades and are more likely to drop out of high school than their peers who do not use. The effects of marijuana on attention, memory, and learning can last for days or weeks.[19]

Sterilization

The way to kill a very dangerous Aspergillus, and other microorganisms, researchers Levitz and Diamond (1991) suggested baking marijuana in home ovens at Template:Convert/C for five minutes before smoking. Oven treatment killed conidia of A. fumigatus, A. flavus, but did not degrade the THC." However, neither this, nor other suggested sterilization methods, degrade microbial antigens or decompose the microbial toxins. Many cannabinoids evaporate below Template:Convert/C; in particular, the more volatile aromatic oils and terpenes, which give cannabis its distinctive flavors and odors.[20]

See also

References

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  1. "Wellness Center - Marijuana". American University. American University. 2013. http://www.american.edu/ocl/wellness/Marijuana.cfm. 
  2. "Marijuana Vaporizer Provides Same Level Of THC, Fewer Toxins, Study Shows". ScienceDaily. ScienceDaily®. 16 May 2007. https://www.sciencedaily.com/releases/2007/05/070515151145.htm. 
  3. "Cannabis Vault : Spiritual Use #2". erowid.org. http://www.erowid.org/plants/cannabis/cannabis_spirit2.shtml. 
  4. "Earliest evidence for cannabis smoking discovered in ancient tombs". 2019-06-12. https://www.nationalgeographic.com/culture/2019/06/earliest-evidence-cannabis-marijuana-smoking-china-tombs/. 
  5. "Cannabis and Cannabis Extracts: Greater Than the Sum of Their Parts?". haworthpress.com. http://www.omma1998.org/McPartland-Russo-JCANT%201(3-4)-2001.pdf. 
  6. 1989. The Merck Index, 11th ed., Merck & Co., Rahway, New Jersey
  7. Gieringer, Dale H.; Joseph St. Laurent; Scott Goodrich (2004). "Cannabis Vaporizer Combines Efficient Delivery of THC with Effective Suppression of Pyrolytic Compounds". Journal of Cannabis Therapeutics 4 (1): 7–27. doi:10.1300/J175v04n01_02. http://www.maps.org/mmj/Gieringer-vaporizer.pdf. Retrieved 2006-04-21. 
  8. Gieringer, Dale. "Marijuana Water Pipe and Vaporizer Study". http://www.maps.org/news-letters/v06n3/06359mj1.html. 
  9. Jeff Winkler (13 September 2013). "Stealth stoner". Aeon Magazine. Aeon Magazine Ltd. http://www.aeonmagazine.com/altered-states/what-is-it-like-to-get-high-on-marijuana-in-public/. 
  10. "Does marijuana have to be heated to become psychoactive?". Cannabisculture.com. 2003-01-02. http://www.cannabisculture.com/articles/2794.html. 
  11. Cornbread, Hemp. "CBD Oil vs CBD Tincture, What's The Difference?". Cornbread Hemp. https://www.cornbreadhemp.com/cbd-oil-vs-cbd-tincture/. 
  12. "Erowid Cannabis (Marijuana) Vault : Effects". http://www.erowid.org/plants/cannabis/cannabis_effects.shtml. 
  13. Paulo Borini; Romeu Cardoso Guimarães; Sabrina Bicalho Borini (May 2004). "Possible hepatotoxicity of chronic marijuana usage". Sao Paulo Medical Journal 122 (3): 120–3. doi:10.1590/S1516-31802004000300007. PMID 15448809. 
  14. "Tasty THC: Promises and Challenges of Cannabis Edibles". Methods Rep RTI Press 2016. November 2016. doi:10.3768/rtipress.2016.op.0035.1611. PMC 5260817. PMID 28127591. 
  15. Template:ChemID
  16. Leslie Iversen (2003-04-08). "Cannabis and the brain. Invited review Brain". Brain (Brain – Oxford Journals) 126 (6): 1252–1270. doi:10.1093/brain/awg143. PMID 12764049. 
  17. Verhaeghe, France; Di Pizio, Pierre; Bichara, Cynthia; Berby, Benoit; Rives, Aurélie; Jumeau, Fanny; Sétif, Véronique; Sibert, Louis et al. (2020-02-01). "Cannabis consumption might exert deleterious effects on sperm nuclear quality in infertile men" (in en). Reproductive BioMedicine Online 40 (2): 270–280. doi:10.1016/j.rbmo.2019.11.002. ISSN 1472-6483. https://www.sciencedirect.com/science/article/pii/S1472648319308016. 
  18. Cohen, Koby; Weizman, Abraham; Weinstein, Aviv (May 2019). "Positive and Negative Effects of Cannabis and Cannabinoids on Health" (in en). Clinical Pharmacology & Therapeutics 105 (5): 1139–1147. doi:10.1002/cpt.1381. ISSN 0009-9236. https://onlinelibrary.wiley.com/doi/10.1002/cpt.1381. 
  19. 19.0 19.1 "Marijuana (Weed, Cannabis) Drug Facts, Effects" (in en). National Institute on Drug Abuse. 2012-08-03. https://teens.drugabuse.gov/drug-facts/marijuana.  Template:PD-notice
  20. "Microbiological contaminants of marijuana". hempfood.com. http://www.hempfood.com/IHA/iha01205.html. 

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