Can levalbuterol (Xopenex) cause urine to test positive for amphetamines? —William L. Powell, Orland, Calif. Drug screens falsely positive for amphetamines have been associated with use of the Vicks ...

A false positive test misidentifying baking soda as a mixture of fentanyl and horse tranquilizer is what landed a Pennsylvania man in a notorious New York prison for two weeks, the state Attorney ...

A view of the East Block at San Quentin. Thousands of drug tests given to California inmates gave false results last year. Prison advocates worry that parole decisions were tainted. (Robert Gauthier / ...

Democratic lawmakers are looking to address a controversial but commonly used drug test with an estimated false-positive rate of up to 40%. Rather than outright prohibit the tests, as other states ...

A new mother from Alabama is warning pregnant patients after she says eating an "everything bagel" for breakfast before giving birth to her second child upended her family last spring. It all stemmed ...

This is The Marshall Project’s Closing Argument newsletter, a weekly deep dive into a key criminal justice issue. Want this delivered to your inbox? Subscribe to future newsletters. Last week, New ...

Question: If you have consumed quite a bit of dark chocolate, would a drug test for cocaine come up positive? -- M.P., Fort Lauderdale, Fla. Answer: No, don't think you can convince your boss that ...

COMMERCE, Ga - The Commerce Police Department placed one of its officers on paid administrative leave after he made a drug arrest using a roadside test the police chief said was inaccurate. It's just ...

Professional athletes have to go through regular drug testing to make sure they're clean before they're allowed to compete. Of course, professional athletes also use energy drinks, because they often ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. A growing number of states are considering legislation to set up protections for ...

Thousands of inmates wrongly tested positive for opiate use inside California state prisons last year because of a laboratory mistake, and civil rights attorneys now worry many of them could be denied ...