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CareZone sues Express Scripts over pharmacy contract

Pill bottles and prescription drugs on a table.
CareZone alleges Express Scripts is stifling other mail-order pharmacies. Photo: Tom Kelley/Getty Images

CareZone, an online service that delivers prescriptions to people's homes, is suing Express Scripts for allegedly engaging in anticompetitive behavior by locking out mail-order firms.

The bottom line: This dispute shines another light on how pharmacy benefit managers like Express Scripts profit from the drug supply chain — in this case, how it is more beneficial for PBMs to prefer their own mail-order pharmacies over others. Express Scripts denies CareZone's allegations.