Association of California's Prescription Drug Coupon Ban With Generic Drug Use.
retrospective_cohort · Level III
Where this comes from
- Record sourced from PubMed, PMID 34129007.
- Also identified by DOI 10.1001/jama.2021.6568 and PMC identifier PMC5243177.
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Abstract
This pharmacoepidemiology study uses insurance claims data to compare generic substitutions for drugs with vs without manufacturer copayment coupons in California vs surrounding states in the year before and after a January 2018 California ban on coupons intended to incentivize use of more expensive brand-name medication.