Nicotine itself could clear from your body in a few hours, but its byproduct can linger for days or weeks. Most nicotine tests detect cotinine, which can show up in urine, saliva, blood, hair, and ...

The blood test that detects nicotine is called a cotinine test. It measures recent tobacco use and exposure. Cotinine is a chemical that comes from the breakdown of nicotine in the body. A blood test ...

AUSTIN, Texas — The latest annual drug testing report from Lake Travis ISD has revealed that a growing number of students are testing positive for drug use. And for the first time in recent years, ...

Dr. Nora Volkow, who leads the National Institutes of Drug Abuse, would like the public to know things are getting better. Mostly. By Matt Richtel Historically speaking, it’s not a bad time to be the ...

Scientists have discovered that a metabolite of nicotine may help improve memory and protect brain cells against dementia. Known as cotinine, the drug has neither the addictive properties nor the ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." This piece is part of a series of stories about nicotine's rebrand from a public health threat to a ...