Fentanyl is a powerful synthetic opioid that has become a critical concern in the United States. Oftentimes employers are on the front-lines of drug testing and establishing codes of conduct when it comes to drug use. Fentanyl's potency is estimated to be 50 to 100 times stronger than morphine, making it highly addictive and dangerous. [...]The post Drug Testing for Fentanyl: What Employers Need to Know first appeared on Drug Tests In Bulk Blog.