The Big Three PBMs’ 2024 Formulary Exclusions: Biosimilar Humira Battles, CVS Health’s Weird Strategy, and the Insulin Shakeup

For 2024, the three largest pharmacy benefit managers (PBMs)—Caremark (CVS Health), Express Scripts (Cigna), and OptumRx (United Health Group)—have again each excluded 600 or more drugs from their standard formularies. You can find our updated counting below.