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A member asked:
How long will continine remain in system after not smoking for 10 days? previously cut down to 2-4 cigarettes a day for 2 weeks from 1/2 pack daily.
A doctor has provided 1 answer
1 week: Cotinine has a half life of 20 hours. After 1 week it is gone from your system. If you stopped smoking for 10 days your cotinine should be negative in urine.
Answered 2/23/2018
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