Older Adults Using Cannabis as a Safer Alternative to Other Drugs | Research

The takeaway

Baby Boomer cannabis users described intentionally substituting cannabis for alcohol, prescription drugs, and illicit substances, perceiving it as safer, less addictive, and more effective for symptom relief.

Read this if you are an older adult who uses cannabis to manage symptoms or as an alternative to other substances.

Substitution based on: fewer side effects, lower addiction risk, better symptom relief

What the researchers found

Researchers conducted in-depth life history interviews with Baby Boomer (born 1946-1964) marijuana users in the San Francisco Bay Area to understand their harm reduction beliefs and substitution practices.

Participants described consciously choosing cannabis over alcohol, illicit drugs, and prescription medications. Their substitution decisions were based on three factors: perception of fewer adverse side effects, belief in lower addiction potential, and greater effectiveness at relieving symptoms like chronic pain.

The concept of substitution was defined as a deliberate choice to use one substance instead of or alongside another, based on perceived safety, addiction risk, symptom relief, access, and social acceptance.

Why it matters

This study frames cannabis substitution within harm reduction, a public health approach that recognizes abstinence is not always realistic or desired. For older adults managing chronic conditions, intentional substance substitution may represent a practical risk-reduction strategy.

The numbers in context

Participants were Baby Boomers (born 1946-1964); primary cannabis users with lifetime experience with other substances; San Francisco Bay Area sample

How the study worked

Qualitative study using semi-structured in-depth life history interviews with Baby Boomer cannabis users in the San Francisco Bay Area. Audio-recorded interviews were analyzed thematically alongside a questionnaire and health survey.

What this study cannot tell us

Qualitative design reflects perceptions rather than measured outcomes. San Francisco Bay Area sample may not represent other regions. Self-selected participants who are primary cannabis users may have positive bias. No objective comparison of safety profiles.

How to read the evidence

Qualitative study capturing user perspectives. Valuable for understanding motivations but cannot verify whether cannabis is objectively safer than the substances it replaces.

When this study was published

Published in 2015. Cannabis legalization and the opioid crisis have since dramatically changed the substitution landscape.

The bigger picture

As more states legalize cannabis and the population of older adult users grows, understanding intentional substitution patterns is important for both clinical care and policy. Cannabis substitution for opioids has become a particularly active area of research.

Questions still open

Does cannabis substitution actually reduce overall harm, or does it add another substance to the mix? How do clinicians factor patient substitution preferences into treatment plans? Would these patterns hold in populations with less access to cannabis?

Common questions

Is cannabis actually safer than the drugs people substitute it for?

This study captured user perceptions, not objective safety comparisons. Cannabis does have a lower acute overdose risk than opioids and alcohol, but long-term safety comparisons depend on the specific substances, doses, and individual health factors involved.

What is harm reduction?

Harm reduction is a set of strategies that aim to minimize negative consequences of drug use while acknowledging that some people are unable or unwilling to stop using substances entirely. It prioritizes reducing risk rather than requiring abstinence.

Read the original research

A safer alternative: Cannabis substitution as harm reduction.

Drug and alcohol review, 34(6), 654-9

View on PubMed ↗Publisher’s paper ↗

Citation

Lau, Nicholas; Sales, Paloma; Averill, Sheigla; Murphy, Fiona; Sato, Sye-Ok; Murphy, Sheigla. (2015). A safer alternative: Cannabis substitution as harm reduction.. Drug and alcohol review, 34(6), 654-9. https://doi.org/10.1111/dar.12275