Evidence map›Paper›PMID 34246279›Full record

ArticleHarm reduction journal2021

Exploring the use of cannabis as a substitute for prescription drugs in a convenience sample.

Sinikka L Kvamme, Michael M Pedersen, Kristine Rømer Thomsen, Birgitte Thylstrup

Open access · goldAbstract read
In one paragraph

Article in Harm reduction journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 2 pooled it
7.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 2 syntheses or guidelines pooled it, 56 citations in OpenAlex.

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  15. Rural reticence to inform physicians of cannabis use.The Journal of rural health : official journal of the American Rural Health Association and the National Rural Health Care Association · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Sinikka L KvammeCenter for Alcohol and Drug Research, Aarhus BSS, Aarhus University, Building 1322. Bartholins Allé 10, 8000, Aarhus C, Denmark. slk.crf@psy.au.dk.ORCID 0000-0002-8376-2013
Michael M PedersenCenter for Alcohol and Drug Research, Aarhus BSS, Aarhus University, Building 1322. Bartholins Allé 10, 8000, Aarhus C, Denmark.
Kristine Rømer ThomsenCenter for Alcohol and Drug Research, Aarhus BSS, Aarhus University, Building 1322. Bartholins Allé 10, 8000, Aarhus C, Denmark.
Birgitte ThylstrupCenter for Alcohol and Drug Research, Aarhus BSS, Aarhus University, Artillerivej 90, 2. Floor, 2300, Copenhagen S, Denmark.
Aarhus University · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe use of cannabis as medicine (CaM) both prescribed and non-prescribed has increased markedly in the last decade, mirrored in a global shift in cannabis policy towards a more permissive stance. There is some evidence that cannabis functions as a substitute for prescription drugs, particularly opioids; however, more knowledge is needed on the motives of substitution users, their patterns of use, and perceived effects of substitution use.

aimsTo explore who substitutes prescription drugs with cannabis, the type of prescription drugs substituted and the type of cannabis used, and the impact that substitution with cannabis has on prescription drug use as well as the motives for substitution in terms of experienced effects and side effects.

methodsA self-selected convenience sample was recruited through social media, public media, and patient organizations to take part in an anonymous online survey. Inclusion criteria were 18 years or older and use of cannabis (prescribed or non-prescribed) with a medical purpose.

resultsThe final sample included 2.841 respondents of which the majority (91%) used non-prescribed cannabis, and more than half (54.6%) had used CaM with the purpose of replacing a prescribed drug. Compared to non-substitution users, substitution users were more likely to be women and to use CaM in the treatment of chronic pain and other somatic conditions. Pain medication (67.2%), antidepressants (24.5%), and arthritis medication (20.7%) were the most common types of drugs replaced with CaM. Among substitution users, 38.1% reported termination of prescription drug use, and 45.9% a substantial decrease in prescription drug use. The most frequent type of cannabis used as a substitute was CBD-oil (65.2%), followed by 'hash, pot or skunk' (36.6%). More than half (65.8%) found CaM much more effective compared to prescription drugs, and 85.5% that the side effects associated with prescription drug use were much worse compared to use of CaM.

conclusionCaM is frequently used as a substitute for prescription drugs, particularly opioids. More research is needed on the long-term consequences of use of CaM, including the impact from low and high THC cannabis products on specific somatic and mental health conditions.

Indexed as

CannabisChronic PainMedical MarijuanaPrescription DrugsAnalgesics, OpioidHumansAnalgesics, OpioidMedical MarijuanaPrescription DrugsCannabidiolMedical cannabisOpioid usePrescription drugsSubstitution

Identifiers

PMID34246279
PMCPMC8272272
OpenAlexW3182978892

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.