A member asked:

How long does cotinine stay in urine?

A doctor has provided 1 answer
Dr. Alan Ali answered

Specializes in Psychiatry

Cotinine: It is a metabolite of nicotine. It has half life of @20 hours, & is detectable for up to 1 week after use of tobacco.

Answered 4/27/2019

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Can marijuana show up in cotinine urine tests?

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