Cannabis used? THC from urine
THC (cannabis) in urine Cannabinoids (urine) Cannabinoids (GCMS) test.
If you blow occasionally, this is still detectable 1 to 3 days after use. If you smoke regularly, however, this will be detectable 2 weeks to 2 months after use, depending on the amount and how often you have used.
THC (tetrahydrocannabinol)
THC is the active substance in cannabis. More than 500 different substances have been found in the plant. About 100 substances belong to the group of cannabinoids. These cannabinoids are only found in the hemp plant. THC is the most important and the only substance that provides the effect of hashish and weed. Two other important cannabinoids are CBD (cannabidiol) and CBN (cannabinol).