A federal judge overturned a part of the conviction of Insys Therapeutics Inc. Founder John Kapoor and three former executives accused of bribing doctors to prescribe an addictive opioid.

The rate of deaths due to opioid overdoses is slowing in Massachusetts, but still nearly 1,500 people died of an overdose in Massachusetts through the first nine months of the year, the state announced Monday.

A growing number of women and children are becoming entangled in drugs as the country's number of addicts aggressively grows.

A few hundred hospitals have banded together to sue drugmakers in state courts, but far more are staying on the sidelines to avoid 'unflattering attention' about their role in the opioid crisis.

A public health official said that in Quebec, overdoses are down and drug use hasn't risen.

Four defendants, including the three big U.S. distributors, have struck a deal with Summit and Cuyahoga counties. It doesn't resolve thousands of other lawsuits filed against the firms across the U.S.

While most Republican attorneys general embrace Purdue Pharma's structured bankruptcy plan, all but two Democratic attorneys general reject it. "This is a moral issue for them," one expert says.

A new study estimates that the opioid epidemic has cost the U.S. economy about $631 billion due to health care costs and the unrealized lifetime earnings of people who died of overdoses.

The largest-ever federal action related to the U.S. opioid crisis is on the cusp of its first trial next week — and it's complicated. So here's a brief(ish) explainer breaking it all down.

Councilor Althea Garrison was sharply critical of her colleagues.