You thought that wild weekend from months ago was ancient history? Think again. While blood tests only catch drug use from the past few days and urine tests stretch to maybe a few weeks, there’s a ...

The trucking industry’s decade-long push for hair follicle drug testing is reaching a critical inflection point as the Trump administration prepares to address guidelines that have been delayed ...

DALLAS, Aug. 29, 2024 (GLOBE NEWSWIRE) -- Psychemedics Corporation (PMD), a global leader in hair testing, is proud to announce the launch of its new ketamine hair testing solution. This innovative ...

Hair analysis could be the key to understanding adolescent drug usage, as a new study uncovers almost double the number of children were found to be using substances than those who admitted to in a US ...