New study finds worrisome statistics around medical cannabis users operating vehicles.

Turning the tide demands improvements to pain care, mental health care and medication-assisted opioid addiction care, U-M researchers say in a new report.

With voters in several states asked to decide about recreational and medical marijuana, a quick look at the state of knowledge about the drug and its derivatives

Countless research projects to better understand the science of addiction are in motion. Those cross-disciplinary findings are informing prevention and treatment.

Rapid rise in liver deaths highlights new challenges in treatment and prevention despite gains in fighting hepatitis C, researchers say.

Licensed medical professionals face just as much risk of a substance use disorder as the general population, and they have a higher likelihood of opioid misuse, says an addiction expert.