Pharmacy
The lawsuit says Walgreens sought reimbursement for the prescriptions from various federal healthcare programs.
Teva is among seven drug companies that have filed lawsuits against Medicare price negotiations.
At the top of the list are the popular semaglutides for weight loss, Ozempic, Rybelsus and Wegovy.
The "Big 3" PBMs also separately generated an estimated $1.4 billion of income from spread pricing, FTC finds.
Overall, these top 25 drugs were responsible for nearly $50 billion in total Medicare Part D spending in 2022, AARP finds.
All commercial prescriptions dispensed at CVS Pharmacy will be reimbursed through CVS CostVantage.
Drugmakers, Aetna alleged, determined their market allocation by providing high cover bids, or refusing to bid for some customers.
In October, CVS announced it would reduce 2,900 corporate positions in a goal to cut costs by $2 billion over several years.