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Cannabis concentrate, also called marijuana concentrate, marijuana extract, or cannabis extract, is a tetrahydrocannabinol (THC) and/or cannabidiol (CBD) concentrated mass. Cannabis concentrates contain high THC levels that range from 40% to over 90%, [ 1 ] [ 2 ] stronger in THC content than high-grade marijuana, which normally measures around ...
THC, the main psychoactive component of cannabis, may only be detectable in saliva and oral fluid for 2–24 hours in most cases. [8] [9] The main metabolite excreted in the urine is 11-Nor-9-carboxy-THC, also known as THC-COOH. Most cannabis drug tests yield a positive result when the concentration of THC-COOH in urine exceeds 50 ng/mL. [10]
There is a slight increase in dose proportionality in terms of peak and area-under-the-curve levels of THC with increasing oral doses over a range of 2.5 to 10 mg. [21] A high-fat meal delays time to peak concentrations of oral THC by 4 hours on average and increases area-under-the-curve exposure by 2.9-fold, but peak concentrations are not ...
New research published in The Lancet details an association between high cannabis potency — or concentration of tetrahydrocannabinol (THC) — and an increased risk of psychosis and cannabis use ...
Marijuana consumed decades ago had concentrations of THC, the main psychoactive ingredient, of 2 to 3%, but cannabis products today can have THC levels as high as 90%.
The highest THC concentrations measured were 52.9% in hashish and 47.0% in hash oil. [8] Hash oils in use in the 2010s had THC concentrations as high as 90% [9] [10] and other products achieving higher concentrations. [11]
A 2022 study published in the Journal of Psychopharmacology found that participants given oral cannabis (the lab-grade alternative to an edible) showed low blood THC concentration at the height of ...
The high lipid-solubility of cannabinoids results in their persisting in the body for long periods of time. [132] Even after a single administration of THC, detectable levels of THC can be found in the body for weeks or longer (depending on the amount administered and the sensitivity of the assessment method). [132]