Why PBM transparency rules aren’t enough to lower drug prices

House lawmakers recently passed a health care bill that grabbed headlines for what it excluded: a solution to the looming expiration of enhanced Affordable Care Act tax credits. But largely overlooked inside the bill was a provision that did make it through, a long-requested provision toward creating stronger federal legislation directly targeting pharmacy benefit managers (PBMs), the middlemen who increasingly determine what Americans pay for their medications. These rules …

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