Local and federal law enforcement agencies are helping sponsor National Prescription Drug “Take Back Day,” which will be held Saturday from 10 a.m.-2 p.m.

If Walmart or CVS tried charging five times more than local grocers for bread, milk and bananas, their customers would promptly start buying locally. Yet a new report from the Consumers Union shows those same chains get away with pricing prescription drugs several times higher than local pharmacies. Researchers called more than 150 pharmacies in six metro regions for cost quotes on five commonly-prescribed drugs. They found the total cost of these drugs was dramatically lower at independent retailers ($107). Chain drug stores charged an average of $849 for the same five drugs, big-box discounters charged $527, and grocery chain pharmacies charged $565.

Kmart Corp. has agreed to pay $32.3 million to settle allegations its pharmacies caused federal health programs to overpay for prescription drugs by not telling the government about discounted prices.

The Trump administration hasn’t mentioned money, but it’s going to take billions. Any plans to cut Medicaid will undermine a response to the opioid crisis.

For Pfizer, bigger is still better. By deciding not to split in two after a lengthy evaluation, a decision announced Monday, the New York-based drugmaker is keeping greater leverage with the health insurers and pharmacy benefit managers that have gained increasing power since it first considered a breakup years ago.