By Gianna Ferrarin

Law360 Healthcare Authority looks at the U.S. Supreme Court's request for the federal government to weigh in on an allergy company's antitrust case, a Sixth Circuit decision overturning a ruling that allowed hundreds of opioid claims against two large pharmacy benefit managers, and other legal news from the past week.

By Jeff Overley

The Sixth Circuit on Friday overturned a pivotal decision in multidistrict opioid litigation that had dramatically expanded claims against the nation's largest pharmacy benefit managers, saying the MDL's presiding judge "clearly abused" his authority by belatedly allowing hundreds of new cases in one fell swoop.

By Gianna Ferrarin

A whistleblower must turn to state courts to pursue his bid for a portion of a $4.7 billion settlement between Walgreens Boots Alliance Inc. and a group of states resolving opioid-related claims against the retail pharmacy chain, an Illinois federal judge ruled.

By Gianna Ferrarin

Law360 Healthcare Authority looks at a First Circuit decision backing criminal penalties on a psychiatrist convicted for submitting $19 million in fraudulent claims, the Second Circuit's conclusion that the No Surprises Act doesn't provide a private right of action for enforcing independent dispute resolutions awards, and other appellate rulings affecting the healthcare industry over the last week.

By Jeff Overley

The federal judge steering multidistrict opioid litigation is lacing into major pharmacy benefit managers for asking the Sixth Circuit to abruptly reverse a key ruling, denouncing their "spurious insinuations" about his motives and warning of disarray if they successfully break up the MDL's consolidated suits.