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A member asked:
I have a drug test coming up what's the expected time it takes for weed to be undetected by a cotton swab test just give me your recommended time frame
A doctor has provided 1 answer
Impossible to say: since marijuana's active ingredient is highly fat soluble and accumulates in fat cells. Oral swabs do not only show oral residue, but reflect the THC metabolites which are excreted in saliva. For someone who smokes only occasionally, it will be positive for 2-3 days, but for regular smokers (3-4 times/week) can be positive for 1-2 weeks, and in daily or heavy smokers, can be positive for months.
Answered 12/3/2015
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