Related Experiment Video
Updated: Apr 14, 2026

Administration of Δ9-Tetrahydrocannabinol (THC) in Adolescent and Adult Mice
Published on: August 1, 2025
A safer alternative: Cannabis substitution as harm reduction.
Nicholas Lau1, Paloma Sales1, Sheigla Averill1
1Centre for Substance Abuse Studies, Institute for Scientific Analysis, San Francisco, USA.
Older adults use cannabis as a harm reduction strategy, substituting it for alcohol, illicit drugs, and pharmaceuticals due to perceived safety and effectiveness. This cannabis substitution can be a viable harm reduction method.
Area of Science:
- Gerontology
- Public Health
- Pharmacology
Background:
- Harm reduction acknowledges that abstinence isn't always feasible or desired for drug users.
- Substitution involves choosing one drug over another based on safety, addiction potential, effectiveness, and access.
- Older adults, particularly Baby Boomers, are increasingly using cannabis.
Purpose of the Study:
- To explore older adult cannabis users' beliefs and substitution practices within a harm reduction framework.
- To understand how cannabis is used as a substitute for other substances in this demographic.
Main Methods:
- Qualitative study involving Baby Boomer marijuana users in the San Francisco Bay Area.
- Semi-structured in-depth life history interviews and health surveys were conducted.
- Analysis focused on identifying harm reduction beliefs and cannabis substitution practices.
Main Results:
- Participants perceived cannabis as a safer alternative to alcohol, illicit drugs, and pharmaceuticals.
- Reasons for substitution included fewer adverse side effects, lower addiction potential, and greater symptom relief (e.g., chronic pain).
Conclusions:
- Cannabis substitution can be an effective harm reduction strategy for individuals unable or unwilling to achieve complete abstinence.
- Further research is warranted to explore cannabis as a potentially safer alternative substance.
Related Concept Videos
Chemotherapy-Induced Nausea and Vomiting: Cannabinoids
Two synthetic agonists of THC,...
Drug Dependence
CNS Stimulants: Cocaine, Amphetamines and Cannabinoids
CNS Depressants: Alcohol and Nicotine
Opioid Analgesics: Synthetic and Semisynthetic Opioids
Drug Abuse and Addiction: Pharmacological Phenomena

