Rated 5.0/5 based on 11 votes

Top
10
Doctor insights on: How Long Does Cotinine Stay In Your Urine

Share
Dr. Alan Ali
Board Certified, Psychiatry
26 years in practice
176M people helped
1

1
How long does cotinine stay in urine?

How long does cotinine stay in urine?

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. ...Read more

Get help from a doctor now ›
Dr. Christopher Crosby
Board Certified
10 years in practice
92K people helped
Get help from a real doctor now
Continue

Urine (Definition)

Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more


Dr. Natarajan Raman
Board Certified, Radiation Oncology
27 years in practice
316K people helped
2

2
How long could cotinine stay in blood and urine after being around second hand smoke?

About a week: Cotinine has an in vivo half-life of approximately 20 hours, and is typically detectable for several days (up to one week) after the use of tobacco. Cotinine levels <10 ng/ml -non smoker 10 ng/ml to 100 ng/ml are associated with light smoking or moderate passive exposure and levels above 300 ng/ml are seen in heavy smokers. ...Read more

Get help from a doctor now ›
Dr. Christopher Crosby
Board Certified
10 years in practice
92K people helped
Get help from a real doctor now
Continue
Dr. Paul Grin
Board Certified, Pain Management
30 years in practice
23M people helped
3

3
How long does cotinine remain detectable in your hair, urine, blood and saliva?

How long does cotinine remain detectable in your hair, urine, blood and saliva?

1 week: Different people metabolize nicotine at different rates. However, cotinine has a half-life of approximately 18-27 hours. It takes approximately 6 half lives for a drug to be eliminated from your system. 27*6/24 = 6.75 days. The cotinine will stay in your system for 1 week. ...Read more

Get help from a doctor now ›
Dr. Ed Friedlander
Board Certified, Pathology
38 years in practice
136M people helped
4
Dr. Christopher Crosby
Board Certified
10 years in practice
92K people helped
Get help from a specialist now
Continue
Dr. Michael Sparacino
Board Certified, Family Medicine
31 years in practice
143M people helped
5
Dr. Nadine Halliburton-foster
Board Certified, Family Medicine
14 years in practice
207K people helped
6

6
If I am taking a cotinine urine test and smoked approximately a week before the test, and for about 6 years, will I pass fail?

If I am taking a cotinine urine test and smoked approximately a week before the test, and for about 6 years, will I pass fail?

Cotinine: Is a metabolite of nicotine and can be present in the blood for up to 2 weeks before dropping. It can also distinguish between active users and those who have been passively exposed ...Read more

Get help from a doctor now ›
Dr. Alan Wartenberg
Board Certified, Addiction Medicine
43 years in practice
6M people helped
7

7
Can nicotine free cigarettes be detected in a urine cotinine test? Any help appreciated!

Can nicotine free cigarettes be detected in a urine cotinine test? Any help appreciated!

No: If you are not using nicotine in the heating chamber, and you haven't smoked tobacco in the last week, your test should be negative. I would point out that the safety of the propellant in these e-cigs (propylene glycol), as well as flavorings and additives, have never been subjected to study, and we simply do not know their long-term safety/dangers.They are likely safer than smoking tobacco though ...Read more

Get help from a doctor now ›
Dr. Johanna Fricke
Board Certified, Developmental and Behavioral Pediatrics
44 years in practice
16M people helped
8

8
My last smoke was jan 25 and I have my nicoten test for work. Tomorrow feb 7th should my urine be cleen of cotinine to pass ?

My  last  smoke was jan 25 and I have my nicoten test for work. Tomorrow feb 7th should my urine be cleen of cotinine to pass ?

That depends on the: Amount & duration you smoked, how deeply you inhaled, whether the cigarettes were mentholated, your genetic set-up for the enzymes in your liver that metabolize nicotine, & whether you're a passive smoker at home or work. You may still have low-moderate amounts of cotinine in your urine. ...Read more

Get help from a doctor now ›
Dr. Martin Raff
Board Certified, Infectious Disease
50 years in practice
103M people helped
9

9
I have been smoking 8-10 cigarettes for last 10 years.I have a urine cotinine test in 20 days. Will I test Negative if i quit smoking 10 days before the test?

I have been smoking 8-10 cigarettes for last 10 years.I have a urine cotinine test in 20 days. Will I test Negative if i quit smoking 10 days before the test?

Cotinine: Levels of cotinine detected in urine vary due to a variety of factors including; the type of tobacco used, filtered vs. non-filtered cigarette, how heavily the individual inhaled the smoke, the length of time an individual chewed, the number of cigarettes smoked per day, and the concentration of the urine. These variables make it difficult to determine exactly how much an individual uses tobacco. ...Read more

Get help from a doctor now ›
Dr. Donald Jacobson
Board Certified, Psychiatry
34 years in practice
17M people helped
10

10
Can marijuana show up in cotinine urine tests?

Can marijuana show up in cotinine urine tests?

No: It only detects a breakdown product of nicotine. Its purpose is to detect cigarette use and use of other nicotine products. ...Read more

Get help from a doctor now ›

Get more personalized answers directly from real doctors!

Get help from a real doctor now
Dr. Christopher Crosby
Board Certified,
10 years in practice
92K people helped
Continue
72,000 doctors available
Find us on Facebook