Interviews with unhoused people who've recently experienced opioid overdose indicate ways to approach places like "Mass and Cass" in Boston.

New research indicates morphine may contribute to bone loss and cancer-induced bone pain.

"Our findings suggest that restoring easier access to opioid pain medications may protect against fatal overdoses."

The number of fatal overdoses was two-fold higher than expected within 7 days and 500 meters of an opioid-related incident in which police seized drugs.

More than 80% of New Yorkers who inject drugs test positive for the opioid fentanyl, but only 18% report using it intentionally.

Prenatal exposure to opioids affects the development of important circuits in the brain and spinal cord that control breathing.

Women who gave birth during the COVID pandemic filled significantly more opioid prescriptions, and at higher strength, for postpartum pain.

Opioid-involved overdose deaths following nonfatal overdose events are largely preventable with buprenorphine, research finds.

A new approach that uses artificial intelligence and Twitter language predicts opioid death rates much more accurately than current methods.

"Our research suggests that the US could benefit from adopting Canada's more flexible regulatory approach to methadone treatment..."