Which company is NOT a Pharmacy Benefit Manager (PBM)?

Harvoni is not a Pharmacy Benefit Manager (PBM); it is actually a brand name for a prescription medication used to treat hepatitis C. PBMs are intermediary organizations that manage prescription drug benefits on behalf of health insurance plans and employers; they negotiate with drug manufacturers and pharmacies to control costs and improve medication management.

In contrast, Optum Rx, CVS Health, and Prime Therapeutics are all recognized PBMs that perform various functions, including managing drug formularies, processing claims, and ensuring that patients receive appropriate medications at the best possible price. Their operations help streamline pharmacy benefits while controlling expenditures for health plans and patients. By recognizing these differing roles, it's clearer why Harvoni, as a medication, does not fit into the category of PBMs.