This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility:


trusted source


Pharmacy researchers examine trends in rising cost of medicine

Credit: Unsplash/CC0 Public Domain

Newly published research from the University of Houston College of Pharmacy reveals an alarming trend in diabetic medication expenditures. While pharmaceutical spending in the U.S. has long been recognized as higher than in other affluent nations, diabetic medications, including insulin, are now at the forefront of this surge in prescription drug costs.

From 2011 to 2020, total annual prescription expenditures rose from $341.49 to $473.12 billion per year with metabolic agents being the costliest category. Among the metabolic agents, antidiabetic agents were the most expensive therapeutic area, with an observed from $27.15 to $89.17 billion over the same period.

"Despite observed trends in medication expenditures, very little effort has been made to understand how those trends vary by therapeutic class," reports Tyler Varisco, assistant professor of Pharmaceutical Health Outcomes and Policy and assistant director of the Prescription Drug Misuse Education and Research Center in the journal Research in Social and Administrative Pharmacy.

Varisco and Whanhui Chi, a second-year doctoral student in Pharmaceutical Outcomes and Policy, conducted a cross-sectional analysis to identify determinants of increasing medicine expenditures in the U.S. between 2011 and 2020.

Varisco used prescription medication expenditures from the Medical Expenditures Panel Survey to calculate total annual medication expenditures by payer categories (Out-of-pocket, Medicare, Medicaid, TRICARE/Veterans Administration/CHAMPVA (TVAC), Other Government Sources, Private Insurance, and Other Sources).

Spending by Medicare ($38.23 billion) and Medicaid ($8.68 billion) accounted for almost half of all U.S. spending on metabolic agents in 2020.

Varisco also found the growth in prescription drug expenditures in the U.S. can be ascribed to several different factors, such as population demographics, changes in technology, and health care practice. For example, total Medicare enrollment was found to be 48,892,758 in 2011, which later reached 62,840,267 in 2020.

"In light of these developments, research is needed to substantiate concerns that trends in the cost of care are outpacing patients' ability to pay," Varisco says. "Continuing analysis is needed to help policymakers and other key stakeholders understand how changes in practice, policy, and drug marketing converge to impact total market expenditures."

More information: Whanhui Chi et al, Why the increase? Examining the rise in prescription medication expenditures in the United States between 2011 and 2020, Research in Social and Administrative Pharmacy (2024). DOI: 10.1016/j.sapharm.2024.01.004

Citation: Pharmacy researchers examine trends in rising cost of medicine (2024, April 10) retrieved 25 June 2024 from
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.

Explore further

Investigating racial and ethnic differences in Medicare costs for older adults with dementia


Feedback to editors