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  2. History of cannabis - Wikipedia

    en.wikipedia.org/wiki/History_of_cannabis

    Some U.S. states have legalized marijuana, but Peter Reuter argues that restricting promotion of marijuana once it is legal is more complex than it may initially appear. [ 80 ] The United Nations' World Drug Report stated that cannabis "was the world's most widely produced, trafficked, and consumed drug in the world in 2010", identifying that ...

  3. Cannabis smoking - Wikipedia

    en.wikipedia.org/wiki/Cannabis_smoking

    Cannabis. Cannabis smoking (known colloquially as smoking weed or smoking pot) is the inhalation of smoke or vapor released by heating the flowers, leaves, or extracts of cannabis and releasing the main psychoactive chemical, Δ 9 - tetrahydrocannabinol (THC), which is absorbed into the bloodstream via the lungs.

  4. Cannabis (drug) - Wikipedia

    en.wikipedia.org/wiki/Cannabis_(drug)

    Cannabis, [ b ] also known as marijuana, [ c ]weed, pot, or hemp, among other names, is a non-chemically uniform drug from the cannabis plant. Native to Central or South Asia, the cannabis plant has been used as a drug for both recreational and entheogenic purposes and in various traditional medicines for centuries.

  5. Effects of cannabis - Wikipedia

    en.wikipedia.org/wiki/Effects_of_cannabis

    Marijuana smoke was listed as a cancer agent in California in 2009. [31] A study by the British Lung Foundation published in 2012 identifies cannabis smoke as a carcinogen and also finds awareness of the danger is low compared with the high awareness of the dangers of smoking tobacco particularly among younger users. Other observations include ...

  6. Legal history of cannabis in the United States - Wikipedia

    en.wikipedia.org/wiki/Legal_history_of_cannabis...

    In the United States, increased restrictions and labeling of cannabis (legal term marijuana or marihuana) as a poison began in many states from 1906 onward, and outright prohibitions began in the 1920s. By the mid-1930s cannabis was regulated as a drug in every state, including 35 states that adopted the Uniform State Narcotic Drug Act. [ 1 ]

  7. Cannabis consumption - Wikipedia

    en.wikipedia.org/wiki/Cannabis_consumption

    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. [10] All of the active constituents enter the body when cannabis is consumed orally.

  8. History of medical cannabis - Wikipedia

    en.wikipedia.org/wiki/History_of_medical_cannabis

    However, the main mode of administration for cannabis is smoking because its effects are almost immediate when the smoke is inhaled. Between 1996 and 1999, eight U.S. states supported cannabis prescriptions opposing policies of the federal government. Most people who are prescribed marijuana for medical purposes use it to alleviate severe pain.

  9. Timeline of cannabis law - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_cannabis_law

    1923: In Italy, the Mussolini-Oviglio Law 396/23 banned the use of both marijuana and hashish. [23] 1924: Sudan banned the cultivation and use of cannabis. [24] 1925: The League of Nations signs the 1925 Opium Convention, for the first time adding pure cannabis extract among drugs under international control. [25]