Nicotine is turned into cotinine (metabolized) by the liver, and remains detectable in the body for up to three weeks (though usually about one week). The length of time cotinine remains in your system can vary depending on your ethnic background, gender, medications consumed, and even your diet.Jul 5, 2022
cotinine
Cotinine is currently being studied as a treatment for depression, PTSD, schizophrenia, Alzheimer's disease and Parkinson's disease. Cotinine was developed as an antidepressant as a fumaric acid salt, cotinine fumarate, to be sold under the brand name Scotine but it was never marketed.
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