Tag: generic copay differentials

Generic Prescribing Incentives: How States Use Copays and Substitution Laws to Cut Drug Costs

Posted By Simon Woodhead    On 17 Jan 2026    Comments(0)
Generic Prescribing Incentives: How States Use Copays and Substitution Laws to Cut Drug Costs

States use copay differentials, preferred drug lists, and pharmacist substitution laws to push patients toward cheaper generic drugs. These policies save billions-but can also cause shortages when manufacturers exit the market.