More than a million Americans use Medicaid to get addiction treatments like methadone. But as states update their systems, some patients have lost coverage. Even a short gap can be life-threatening.

Overdose deaths from fentanyl and other opioids have surged but medications that could save thousands of lives "are sitting on the shelf unused," according to new research.

Federal restrictions seemed to explain why many doctors weren't prescribing medication for opioid addiction. But some caution that removing those rules isn't enough to overcome hesitancy and stigma.

Early data suggest the pandemic may be driving up overdoses. Author Barbara Andraka-Christou says the solution to the addiction crisis is right before us: Improve access to life-saving medication.

The federal government has waived a law that required an in-person doctor's visit before patients could be prescribed drugs that quell withdrawal symptoms. That's a boon for patients, counselors say.