The Federal Trade Commission (FTC) has filed a lawsuit against the United States’ largest pharmacy benefit managers (PBMs), accusing them of inflating insulin prices through a “perverse drug rebate system.” The defendants, CVS Health’s Caremark, Cigna’s Express Scripts, and UnitedHealth Group’s Optum, collectively manage approximately 80% of all prescriptions in the U.S., generating over $400 billion in annual revenue.
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