A study from investigators at the Massachusetts General Hospital (MGH) Institute for Technology Assessment projects that the opioid overdose epidemic in the U.S. is likely to increase in coming years.

For the first time in U.S. history, a person is more likely to die from an accidental opioid overdose than from a motor vehicle crash, according to National Safety Council analysis.

Fentanyl is the most commonly used drug involved in drug overdoses, according to the US Centers for Disease Control and Prevention's National Center for Health Statistics.

One in five deaths among adults aged 25-34 is due to opioid-related causes, according to a study in the Journal of the American Medical Association (JAMA).