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A member asked:
How long after i quit dipping will i test positive for nicotine on mouth swab?
A doctor has provided 1 answer
17 hr half life: for 'cotinin' the screened for breakdown product of nicotine. So.... half is there at 17 hrs, 1/4 at 34 hrs... etc. a hundred fold down is likely to be negative (but might not be in all cases). that is 2,4, 8, 16, 32, 64, 128... 6 to 7 times 17 hrs or about 100 hrs (5 days; 5 to 7 days is the usual rule of thumb).
Answered 3/7/2018
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