Scientific distinctions between coca and cocaine support policy reform.
Resource type
Journal article
Creator (person)
White, Dawson M.
Soberón Garrido, Ricardo
Conzelman, Caroline S.
Davis, Wade
Guislain, Claude
Henman, Anthony
Jara-Muñoz, Orlando Adolfo
Jelsma, Martin
Mejía, Susana
Montoya-Cataño, Daniel
Pérez-Escobar, Oscar Alejandro
Restrepo, David Alfonso
Saavedra-Rojas, Yenny Alejandra
Tariru, Imika
Date published
November 20, 2025
Abstract
Ongoing review of international drug policy should correct long-standing, misguided, and harmful conflation
The coca bush, a sacred South American crop plant, is classified alongside cocaine and heroin as a Schedule I controlled substance under international law. This scheduling, and the myriad effects of prohibition, have fostered a general perception that coca and its purified alkaloid cocaine are one and the same. Yet this conflation obscures a striking contrast: Whereas cocaine’s 165-year history is marked by health risks and social disruption, the use of coca leaf has played a positive role in Andean and Amazonian societies for thousands of years. Studies across the biological and social sciences corroborate coca leaf as a benign, nonaddictive stimulant and a culturally vital plant, profoundly different from its purified derivative. The World Health Organization (WHO)’s Expert Committee on Drug Dependence (ECDD) is now reviewing the health effects of coca ( ), offering a rare opportunity to correct this misclassification and align international drug policy with scientific evidence and social reality.
Project(s)
Priority 4: Accelerated Taxonomy
Funder
| Funder name | Awards |
Harvard University, United States | Herbaria Research Fellowship |
Journal title
Science
Volume
390
Issue
6775
Publisher
American Association for the Advancement of Science (AAAS)
Place of publication
Washington, D.C., U.S.
ISSN
0036-8075
eISSN
1095-9203
Official URL
Rights statement
In Copyright
Additional information
IF = 45.8 (2024)