A Massachusetts federal judge dismissed Boston's lawsuit against pharmacy benefits managers Express Scripts Inc. and OptumRx Inc. over their role in the opioid crisis, ruling that the city's claims were filed too late. Judge Patti B. Saris found that Boston knew or should have known about the harm caused by opioid over-prescribing by 2018, making the claims subject to expired statute of limitations. The ruling highlights the broader, ongoing legal battle involving municipalities and the opioid crisis.