How one lawsuit could upend home medication delivery

Prescription pills and bottles in plastic baggies.
Home delivery of medication is a $109 billion business. Photo: Brianna Soukup/Portland Press Herald via Getty Images

A lawsuit between startup CareZone and pharmacy benefit manager Express Scripts could provide an opening for Amazon to enter the pharmaceutical supply chain.

The bottom line: The dispute is over what constitutes a mail-order pharmacy, a $109 billion business. And CareZone believes it could set the path for Amazon if it's successful against Express Scripts.