University of Oklahoma Health Sciences Center

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Author/s:

Molero, Y., Larsson H., D'Onofrio B.M., Sharp D.J., Fazel S.

Date Added:

June 26, 2019

Journal/Publication:

British Medical Journal

Publication Date:

June 12, 2019

URL:

Associations between gabapentinoids and suicidal behaviour, unintentional overdoses, injuries, road traffic incidents, and violent crime: population based cohort study in Sweden

Type:

Clinical Research Results

Format:

Article

DOI (1):

10.1136/bmj.l2147

Keywords

Lyrica

suicide

motor vehicle accidents

MeSH

Accidents

Traffic/statistics & numerical data

Wounds and Injuries/epidemiology

Violence/statistics & numerical data

Sweden/epidemiology

Suicide/statistics & numerical data

risk factors

Prescription Drugs/adverse effects

Pregabalin/adverse effects

Middle Aged

Gabapentin/adverse effects

Drug Prescriptions/statistics & numerical data

Drug Overdose/epidemiology

RPR Commentary

Pregabalin (Lyrica) appears to be associated with an increased risk of suicidal behaviors, unintentional overdoses, and motor vehicle accidents, particularly in adolescents and young adults. James W. Mold, MD, MPH

Abstract

OBJECTIVE:

To examine associations between gabapentinoids and adverse outcomes related to coordination disturbances (head or body injuries, or both and road traffic incidents or offences), mental health (suicidal behaviour, unintentional overdoses), and criminality.

DESIGN:

Population based cohort study.

SETTING:

High quality prescription, patient, death, and crime registers, Sweden.

PARTICIPANTS:

191 973 people from the Swedish Prescribed Drug Register who collected prescriptions for gabapentinoids (pregabalin or gabapentin) during 2006 to 2013.

MAIN OUTCOME MEASURES:

Primary outcomes were suicidal behaviour, unintentional overdoses, head/body injuries, road traffic incidentsand offences, and arrests for violent crime. Stratified Cox proportional hazards regression was conducted comparing treatment periods with non-treatment periods within an individual. Participants served as their own control, thus accounting for time invariant factors (eg, genetic and historical factors), and reducing confounding by indication. Additional adjustments were made by age, sex, comorbidities, substance use, and use of other antiepileptics.

RESULTS:

During the study period, 10 026 (5.2%) participants were treated for suicidal behaviour or died from suicide, 17 144 (8.9%) experienced an unintentional overdose, 12 070 (6.3%) had a road traffic incident or offence, 70 522 (36.7%) presented with head/body injuries, and 7984 (4.1%) were arrested for a violent crime. In within-individual analyses, gabapentinoid treatment was associated with increased hazards of suicidal behaviour and deaths from suicide (age adjusted hazard ratio 1.26, 95% confidence interval 1.20 to 1.32), unintentional overdoses (1.24, 1.19 to 1.28), head/body injuries (1.22, 1.19 to 1.25), and road traffic incidents and offences (1.13, 1.06 to 1.20). Associations with arrests for violent crime were less clear (1.04, 0.98 to 1.11). When the drugs were examined separately, pregabalin was associated with increased hazards of all outcomes, whereas gabapentin was associated with decreased or no statistically significant hazards. When stratifying on age, increased hazards of all outcomes were associated with participants aged 15 to 24 years.

CONCLUSIONS:

This study suggests that gabapentinoids are associated with an increased risk of suicidal behaviour, unintentionaloverdoses, head/body injuries, and road traffic incidents and offences. Pregabalin was associated with higher hazards of these outcomes than gabapentin.

Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

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