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It is the principal psychoactive constituent of cannabis and one of at least 113 total cannabinoids identified on the plant. Although the chemical formula for THC (C 21 H 30 O 2) describes multiple isomers, [10] the term THC usually refers to the delta-9-THC isomer with chemical name (−)-trans-Δ9-tetrahydrocannabinol.
According to a 2022 Gallup survey, 16% of Americans reported being marijuana smokers (up from 7% in 2013) and 48% reported trying marijuana at some point in their lifetimes (up from 4% in 1969). [42] Medical use is a common reason people buy cannabis online.
Legal to possess up to 2.5 oz (71 g) and up to 15 grams of cannabis concentrates. Legal to possess a 90-day supply. Legal to grow 6 plants per adult, maximum 12 plants per household. Legal to possess up to 8 oz (230 g), 1 oz (28 g) of concentrate, and 72 oz (2 kg) of edibles in a residence.
Cannabis drug testing describes various drug test methodologies for the use of cannabis in medicine, sport, and law. Cannabis use is highly detectable and can be detected by urinalysis, hair analysis, as well as saliva tests for days or weeks. Unlike alcohol, for which impairment can be reasonably measured using a breathalyser (and confirmed ...
The legal history of cannabis in the United States began with state-level prohibition in the early 20th century, with the first major federal limitations occurring in 1937. Starting with Oregon in 1973, individual states began to liberalize cannabis laws through decriminalization. In 1996, California became the first state to legalize medical ...
Legal status of cannabis for medical use. Legal for any adult use. Legal for medical use. Illegal or unknown. The legality of cannabis for medical and recreational use varies by country, in terms of its possession, distribution, and cultivation, and (in regards to medical) how it can be consumed and what medical conditions it can be used for.
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.
Delta-9 THC is the primary psychoactive ingredient in marijuana; however, it is not considered a controlled substance under federal law when the dry weight of delta-9 THC does not exceed a ...