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Cotinine is a metabolite of nicotine that typically remains in the blood between 48 and 96 hours. The level of cotinine in the blood is proportionate to the amount of exposure to tobacco smoke, so it is a valuable indicator of tobacco smoke exposure, including secondary smoke. Women who smoke menthol cigarettes retain cotinine in the blood for a longer period. Race may also play a role, as African-Americans routinely register higher blood cotinine levels than Caucasians. Several factors, such as menthol cigarette preference and puff size, suggest that this difference may be more complex than gender or race. Drug tests can detect cotinine in the blood, urine, or saliva. The word 'cotinine' is an anagram of 'nicotine'. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See for details. Source: Wikipedia, Cotinine (Wikipedia)

The N-glucuronide conjugate of cotinine is a major urinary metabolite of nicotine. It serves as a biomarker of exposure to tobacco. It stimulates the CNS. Source: National Library of Medicine, MeSH 2006

The nicotine metabolite, cotinine, is a sensitive and specific biochemical marker of exposure (direct and passive) to cigarette smoke. Source: Regenstrief Institute

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Language Variants Get Info

Tag Language Translation
zh-CN Chinese (China) 可铁宁
Synonyms: N-甲-2-5-吡咯烷酮;烟碱代谢产物
fr-CA French (Canada) Cotinine
et-EE Estonian (Estonia) Kotiniin
es-ES Spanish (Spain) Cotinina
it-IT Italian (Italy) Cotinina
tr-TR Turkish (Turkey) Kotinin
ru-RU Russian (Russian Federation) Котинин
nl-NL Dutch (Netherlands) cotinine
fr-BE French (Belgium) Cotinine