Key topics Below, you can find detailed information about Express Scripts works, how we add value and how we ensure transparency with all stakeholders. Home Key Topics Myths + Facts Resources Key Topics The Value Express Scripts Delivers How PBMs work The truth about high drug pricing Driving drug competition to lower costs The reality of rebates Driving drug savings through formularies Building purposeful pharmacy networks The skinny on spread pricing Breaking down the pass through pricing model A look at administrative fees PBM governance Delivering value and affordability to consumers A word on group purchasing organizations and Ascent Specialty pharmacy deep dive High-deductible health plans and drug costs View more