Walmart, CVS and other pharmacies accused in a key lawsuit of helping fuel the opioid crisis have petitioned an appeals court to overturn various orders by a district judge ahead of an Oct. 13 trial, including one to provide data on every prescription filled by all their pharmacists.

In particular, the pharmacies insist that U.S. District Judge Dan Polster of the Northern District of Ohio, who is overseeing 2,600 lawsuits brought by cities and counties against several opioid companies, improperly forced them to provide prescription data for thousands of stores nationwide, even though the planned trial involves only two Ohio counties.