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How Long Does Cotinine Remain In The Body?

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Posted on Fri, 30 Oct 2015
Question: I have a cotinine test in 15 days I quit smoking after a pack a day for 15 years for 3 months and passed a cotinine test, but now they sprung another test on me in 15 days and I have smoked a pack a week for a month, if I quit now again will i pass in 15 days?
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Answered by Dr. Dr. Matt Wachsman (44 minutes later)
Brief Answer:
in all likelihood, yes

Detailed Answer:
the half life of cotinin is LESS than a day. half, fourth, eigth.....really tiny amount left. It doesn't store up in tissues quite to the extent that marijuana does. If they DID detect it, it would be at a level BELOW what could be seen wiht second hand smoke; I doubt they want the test to be that sensitive.
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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Dr. Matt Wachsman

Addiction Medicine Specialist

Practicing since :1985

Answered : 4214 Questions

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How Long Does Cotinine Remain In The Body?

Brief Answer: in all likelihood, yes Detailed Answer: the half life of cotinin is LESS than a day. half, fourth, eigth.....really tiny amount left. It doesn't store up in tissues quite to the extent that marijuana does. If they DID detect it, it would be at a level BELOW what could be seen wiht second hand smoke; I doubt they want the test to be that sensitive.