Three companies that process about 80% of prescriptions in the United States — Caremark, Express Scripts and OptumRx — have engaged in anticompetitive practices that spur price increases, the

The agency alleges CVS’s Caremark, Cigna’s Express Scripts and UnitedHealth’s Optum Rx accepted money from drugmakers in exchange for keeping lower-cost insulin off their lists of approved

The Federal Trade Commission on Friday filed lawsuits against three prescription drug benefit managers or PBMs over concerns the companies are artificially inflating the list price of insulin drugs.