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e. 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 ...
THC levels in products have also spiked, per the report. Around 17.7 million people in 2022 said they use marijuana daily or nearly daily, an analysis published in late May revealed.
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.
A dried cannabis flower. The short-term effects of cannabis are caused by many chemical compounds in the cannabis plant, including 113 [clarification needed] different cannabinoids, such as tetrahydrocannabinol (THC), and 120 terpenes, [1] which allow its drug to have various psychological and physiological effects on the human body.
Cannabis also has a long history of being used for medicinal purposes, and as a recreational drug known as marijuana or weed. Various cannabis strains have been bred, often selectively to produce high or low levels of tetrahydrocannabinol (THC), a cannabinoid and the plant's principal psychoactive constituent.
Public opinion on marijuana may be divided, but the research is clear: today’s marijuana is nothing like the 2% THC potency Woodstock weed of the 1970s. With legalization, marijuana’s potency ...
The average levels of THC in cannabis sold in the United States rose dramatically between the 1970s and 2000. [279] This is disputed for various reasons, and there is little consensus as to whether this is a fact or an artifact of poor testing methodologies. [ 279 ]
For non-prescription use, products with less than 0.3% delta-9 THC containing CBD, delta-8 THC, and other naturally-occurring cannabinoids derived from hemp (cannabis containing less than 0.3% delta-9 THC) are legal and unregulated [9] at the federal level, but legality and enforcement varies by state.