Medical Cannabis and the Persistence of Federal Prohibition

In recent years, an increasing number of states in the United States have legalized the use of cannabis for medical purposes, reflecting a significant shift in both public opinion and state-level policy. Despite this, the federal government has continued to classify cannabis as a Schedule I controlled substance, a designation that implies no accepted medical use and a high potential for abuse. However, the persistence of federal cannabis prohibition cannot be explained by scientific uncertainty alone. Rather, it reflects how historical narratives rooted in racial propaganda and fearmongering became embedded in legal and bureaucratic institutions that change far more slowly than public opinion or medical evidence. Together, the legal frameworks governing cannabis classification, the cultural narratives underlying its criminalization, the expanding body of medical research, and the institutional barriers to reform reveal a widening divide between federal policy and contemporary evidence. This divide demonstrates how institutional structures can preserve an outdated classification long after its original justifications have eroded.