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Negative health and safety effects of cannabis in Colorado

Updated: Sep 27, 2020

Legalized Cannabis in Colorado Emergency Departments: A Cautionary Review of Negative Health and Safety Effects


Summary: Cannabis legalization has led to significant health consequences, particularly to patients in emergency departments and hospitals in Colorado. The most concerning include psychosis, suicide, and other substance abuse. Deleterious effects on the brain include decrements in complex decision-making, which may not be reversible with abstinence. Increases in fatal motor vehicle collisions, adverse effects on cardiovascular and pulmonary systems, inadvertent pediatric exposures, cannabis contaminants exposing users to infectious agents, heavy metals, and pesticides, and hash-oil burn injuries in preparation of drug concentrates have been documented. Cannabis dispensary workers (“budtenders”) without medical training are giving medical advice that may be harmful to patients.


Author: Brad A. Roberts, MD

Published by: Western Journal of Emergency Medicine


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