Home HealthTopics Health Centers Reference Library Research
Join us on Facebook Join us on Facebook Share on Facebook

Smoking and Tobacco




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


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.

For more information:

Go to the Smoking and Tobacco health topic, where you can:

Response by:

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