Journal Article
Use and Out-of-Pocket Costs of Inhaler Devices by Payer Type and Estimated Carbon Dioxide Emissions
September 28, 2026
Featured Experts: Dima M. Qato, PharmD, MPH, PhD, Christopher Scannell, MD, PhD
Research
All Research Featured Research
News
Older Americans Are Taking More Medications, With More Than 1 in 5 at Risk for a Major Drug Interaction
September 25, 2026
Featured Experts: Dima M. Qato, PharmD, MPH, PhD
Journal Article
Changes in Dietary Supplement Use Among Children and Adolescents in the United States, 2015–2016 to 2021–2023
April 24, 2026
Featured Experts: Dima M. Qato, PharmD, MPH, PhD
News
Despite FDA Rule Change, Few Retail Pharmacies Dispense Mifepristone
April 13, 2026
Featured Experts: Christopher Scannell, MD, PhD, Dima M. Qato, PharmD, MPH, PhD, Rebecca Myerson, PhD, MPH
News
PBM Markets for Medicare Part D or Medicaid Are Highly Concentrated in Nearly Every State
February 6, 2026
Featured Experts: Dima M. Qato, PharmD, MPH, PhD
Journal Article
Availability and Pharmacist-Prescribing of Pre-Exposure Prophylaxis for HIV Prevention at Retail Pharmacies in Los Angeles County, 2023
January 6, 2026
Featured Experts: Dima M. Qato, PharmD, MPH, PhD
Perspective
Critical Access Pharmacy Designations Could Strengthen Access
December 19, 2025
Featured Experts: Dima M. Qato, PharmD, MPH, PhD
News
USC Researchers Reboot National Pharmacy Desert Map Amid Wave of Drugstore Closures
November 4, 2025
Featured Experts: Dima M. Qato, PharmD, MPH, PhD
News
Despite Relaxed Prescribing Rules, Opioid Addiction Treatment Still Hard to Find at Pharmacies
September 2, 2025
Featured Experts: Dima M. Qato, PharmD, MPH, PhD, Sarah Axeen, PhD
News
Pharmacies Excluded from Preferred Networks Face Much Higher Risk of Closure
May 5, 2025
Featured Experts: Dima M. Qato, PharmD, MPH, PhD
Journal Article
Medicare Part D Preferred Pharmacy Networks And The Risk For Pharmacy Closure, 2014–23
May 5, 2025
Featured Experts: Genevieve P. Kanter, PhD, Dima M. Qato, PharmD, MPH, PhD
Comment Letter
Comments on Enhancing Coverage of Preventive Services Under the Affordable Care Act
December 23, 2024
Featured Experts: Dima M. Qato, PharmD, MPH, PhD
Journal Article
More US Pharmacies Closed Than Opened in 2018–21; Independent Pharmacies, Those in Black, Latinx Communities Most at Risk
December 3, 2024
Featured Experts: Genevieve P. Kanter, PhD, Dima M. Qato, PharmD, MPH, PhD
News
Nearly 1 in 3 Retail Pharmacies Have Closed Since 2010, Widening Health Disparities
December 3, 2024
Featured Experts: Dima M. Qato, PharmD, MPH, PhD
Journal Article
Use of Medications with Somnolence Adverse Effects and Somnolence Symptoms Among Older Adults in the U.S.
November 26, 2024
Featured Experts: Dima M. Qato, PharmD, MPH, PhD
News
PBM Market Concentration Varies Among Payer Types
September 10, 2024
Featured Experts: Karen Van Nuys, PhD, Dima M. Qato, PharmD, MPH, PhD
Journal Article
Pharmacy Benefit Manager Market Concentration for Prescriptions Filled at US Retail Pharmacies
September 10, 2024
Featured Experts: Dima M. Qato, PharmD, MPH, PhD, Karen Van Nuys, PhD
Journal Article
Changes in Emergency Contraceptive Fills After Massachusetts’ Statewide Standing Order
July 2, 2024
Featured Experts: Dima M. Qato, PharmD, MPH, PhD, Rebecca Myerson, PhD, MPH
Journal Article
Use of Oral and Emergency Contraceptives After the US Supreme Court’s Dobbs Decision
June 26, 2024
Featured Experts: Dima M. Qato, PharmD, MPH, PhD, Rebecca Myerson, PhD, MPH