Infrastructure Deal Puts Fight Over Drug Rebate Rule in Peril

A lawsuit against a rule to upend the payments drugmakers make to pharmacy liaisons could come to an end as lawmakers weigh delaying the rule and using the savings to pay for billions in infrastructure and health-care improvements.

A group of pharmacy benefit managers—which help decide how a drug will be covered by insurance—says the rule would significantly disrupt negotiations with drugmakers. But an amendment to a bipartisan infrastructure deal would delay the rule’s implementation until Jan. 1, 2026—leaving the group with less of a basis to pursue their challenge.

“You usually need something that is going to happen that ...