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Drug Repurposing Hypothesis Generation Using the "RE:fine Drugs" System

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Published on: December 11, 2016

Access To Community Pharmacies Associated With Reduced Racial And Ethnic Disparities In Use Of Prescription Drugs,

Maitreyi Sahu¹, Tyler D Wagner², Drew DeJarnatt³

¹Maitreyi Sahu (msahu1@bwh.harvard.edu), University of Washington, Seattle, Washington.

Health Affairs (Project Hope)

|July 7, 2026

Summary

Improving community pharmacy access can reduce racial and ethnic disparities in medication use. Greater pharmacy availability, especially in underserved areas, is linked to increased medication use and decreased health inequities.

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Area of Science:

Health Services Research
Health Disparities
Pharmaceutical Access

Background:

Persistent racial and ethnic disparities in medicine access exist in the US.
Community pharmacies are vital for prescription drug access, but their distribution is uneven.
Uneven pharmacy availability may worsen health inequities.

Purpose of the Study:

To estimate population access to community pharmacies by race and ethnicity.
To assess the association between pharmacy access and medication use.
To determine the impact of pharmacy access on racial and ethnic disparities in medication use.

Main Methods:

Population proximity to community pharmacies (10-minute drive time) was estimated by county, race, and ethnicity (2010-2023).
Pharmacy access measures were linked to state-level medication use data (27 conditions) by race/ethnicity (through 2019).
Statistical analysis examined the relationship between pharmacy access and medication use per prevalent case and disparities.

Main Results:

A 1% increase in population within a 10-minute drive of a pharmacy correlated with a 0.7% increase in medication use per case.
This positive association was most pronounced for Asian/Pacific Islander, Black, and Hispanic populations.
A 1% increase in pharmacy access was linked to a 0.52% decrease in racial and ethnic disparities in medication use.

Conclusions:

Uneven community pharmacy access may exacerbate racial and ethnic disparities in medication use.
Policies aimed at improving medication access should prioritize underserved communities.
Targeted interventions to maintain or expand pharmacy presence are recommended for health equity.