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Stopped Smoking. How Long Does Cotinine Stay In Blood System?

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Posted on Sat, 9 Mar 2013
Question: how long does cotinine stay in your blood system. I have quit smoking and my company is now doing cotinine blood test for health insurance. We have our blood draw in 40 days should I be good to be considered a non smoker?
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Answered by Dr. Sundar Gnanavel (5 minutes later)
Hello.......
Thanks for your query. Cotinine does not stay in your blood system beyond 14-15 days considering the half life of cotinine that is 1.5 days. Hence 40 days is safe enough to pass the health insurance test.
Regards
Dr Sundar
Addiction medicine specialist
Note: In case of any other concern or query related to prevention, evaluation, diagnosis, treatment, or the recovery of persons with the any type of addiction or substance use, follow up with our Addiction Medicine Specialist. Click here to book a consultation now.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Sundar Gnanavel

Psychiatrist

Practicing since :2009

Answered : 632 Questions

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Stopped Smoking. How Long Does Cotinine Stay In Blood System?

Hello.......
Thanks for your query. Cotinine does not stay in your blood system beyond 14-15 days considering the half life of cotinine that is 1.5 days. Hence 40 days is safe enough to pass the health insurance test.
Regards
Dr Sundar
Addiction medicine specialist