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Smoking and Tobacco

Nicotine

03/01/2002

Question:

How long after an individual stops smoking does it take for the blood stream/body to have no trace of nicotine?

Answer:

The half-life of nicotine in humans is about 2 hours; that means that half of the nicotine present in the bloodstream is metabolized every 2 hours. There would be no detectable level in 24 hours. Please see the web site for additional details.

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Response by:

Jerry   Friemoth, MD Jerry Friemoth, MD
Associate Professor
College of Medicine
University of Cincinnati