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Most slang names for marijuana and hashish date to the jazz era, when it was called gauge, jive, reefer. Weed is a commonly used slang term for drug cannabis. New slang names, like trees, came into use early in the twenty-first century. [2] [3] [4]
A 2000 study by the US NIST [6] examined 12 chemical spot tests and concluded that all the tests examined "may indicate a specific drug or class of drugs is in the sample, but the tests are not always specific for a single drug or [class]". The study also noted that "mace, nutmeg and tea reacted with the modified Duquenois–Levine [test]".
A 2022 study in PLOS One, drawing data from almost 90,000 samples from six US states, representing the largest quantitative chemical mapping of commercial dispensary-grade cannabis flower samples to date, found that “commercial labels do not consistently align with the observed chemical diversity.” In other words, many strain names do not ...
"Body on a chip" is an emerging biotechnology with the potential to safely speed up the new drug development process, saving drug companies staggering amounts of money a year. Uncle Sam is kicking ...
The 1980s media public service announcement This Is Your Brain on Drugs is an example of anti-marijuana propaganda. April 20 International day for cannabis pride. Assassin of Youth 1937 American anti-marijuana propaganda film that depicts cannabis use leading to tragedies, and obscene, all-night parties.
Most cannabis drug tests yield a positive result when the concentration of THC-COOH in urine exceeds 50 ng/mL. [10] Urine testing is an immunoassay based test on the principle of competitive binding. Drugs which may be present in the urine specimen compete against their respective drug conjugate for binding sites on their specific antibody.
Individuals were considered heavy cannabis users if they had used marijuana more than 1,000 times in their lives; moderate users if they had used weed between 10 and 999 times; and nonusers if ...
Cannabis testing is also required in other states, such as California, [16] Oregon, [17] Massachusetts, [18] and Nevada. [19] Washington State added routine pesticide testing and random or investigation-driven heavy metal testing, formerly required only for medical cannabis, to its testing suite for all cannabis on March 2, 2022.