A 45-year-old member asked:
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how long does nicotine stay in your urine?

1 doctor answer
Dr. Alan Wartenberg
A Verified Doctor answered
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3-4 days: A single cigarette will give a positive urine cotinine for 1-2 days, regular smokers generally 3-4 and rarely 5 days, and blood tests can detect it for about the same time. Oral swabs may detect if for a bit longer, up to 7-10 days, and it can be found in hair drug testing for months, depending on the length of hair chosen.
Answered on Jan 14, 2019
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