Evidence map›Paper›PMID 42236659›Full record

SynthesisDrugs2026

Misuse of Pregabalin and Gabapentin: A Second Systematic Review Update.

Kirk E Evoy, Daija Drain, Justin Pedigo, Jordan R Covvey, Olivia Ramey

Abstract readSystematic Review
In one paragraph

Synthesis in Drugs, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

Kirk E EvoyCollege of Pharmacy, The University of Texas at Austin, San Antonio, TX, USA. evoy@uthscsa.edu.ORCID http://orcid.org/0000-0003-0913-7145
Daija DrainCollege of Pharmacy, The University of Texas at Austin, San Antonio, TX, USA.
Justin PedigoCollege of Pharmacy, The University of Texas at Austin, San Antonio, TX, USA.
Jordan R CovveySchool of Pharmacy, Duquesne University, Pittsburgh, PA, USA.ORCID http://orcid.org/0000-0003-2913-2042
Olivia RameyCollege of Pharmacy, The University of Texas at Austin, San Antonio, TX, USA.ORCID http://orcid.org/0000-0001-6149-1366

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA 2017 systematic review and 2021 update identified 114 studies regarding gabapentinoid (gabapentin and pregabalin) misuse, dependence, or overdose.

objectiveWe aimed to update previous systematic reviews and describe new insights regarding gabapentinoid misuse.

methodsPubMed was searched from 1 September, 2020 to 24 January, 2025 using the following four searches: "gabapentin [MeSH] OR pregabalin [MeSH] OR gabapentinoid AND" one of the following four substance misuse-related terms: "substance-related disorders [MeSH]," "overdose," "abuse," or "misuse." Additional research was identified by reviewing papers cited by included studies. Studies presenting novel data regarding gabapentinoid misuse, dependence, or overdose were included. Non-English articles, review articles, and animal studies were excluded.

resultsOne hundred studies (87 observational, 13 case reports/series) were included, from North America (33), Europe (39), Asia (20), Australia (7), and Africa (1). Sixteen studied gabapentin, 20 pregabalin, and 51 both medications. These studies corroborated previous findings that gabapentinoids are misused both for therapeutic and non-therapeutic purposes, often in conjunction with opioids or other substances, and commonly in people with substance use disorders and psychiatric conditions. Recent research built on the previous systematic review, providing more robust evidence that concomitant use with opioids or benzodiazepines increases overdose risks. New studies also highlight a growing body of evidence regarding misuse within the Middle East and North Africa, among adolescents, and in patients with chronic pain.

conclusionsNewly published evidence demonstrated that gabapentinoid misuse remains a significant concern, including in several populations not often highlighted in previous research. It provides more compelling evidence that gabapentinoids increase overdose risk, particularly when used with opioids or benzodiazepines.

Indexed as

AnalgesicsDrug MisuseGabapentinPregabalinSubstance-Related DisordersDrug OverdoseHumansAnalgesicsGabapentinPregabalin

Identifiers

PMID42236659
PMCPMC13375660

What OpenQuestion holds

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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.