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A member asked:
How long does tobacco stay in your blood?
A doctor has provided 1 answer
Nicotine not tobacco: Tobacco doesn't enter the bloodstream, but nicotine and carbon monoxide and other chemicals do. Nicotine only remains for a very short time, 10-15 minutes, and is metabolized into cotinine, which is excreted in urine, and can last 2-3 days in a regular smoker.
Answered 5/11/2014
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