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A 48-year-old member asked:

How long does it take for the nicotine of one cigarette to leave your body?

1 doctor answer2 doctors weighed in
Dr. Andrew Turrisi
Radiation Oncology 49 years experience
Each cigarette : Contains about 1 mg of nicotine, and its half-life is about 2 hrs. It also is multicompartmental, meaning it can be "accumulated" in adipose tissue, detoxified to cotinine by cytochrome p-450 enzymes, so eliminaion entrely can be complicated by the direct half life, and then the leeching from the fat cells. It's complicated!
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Last updated Jul 2, 2017


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