The association between gabapentin and suicidality in bipolar patients

The aims of this study were to assess the association between gabapentin and suicidality in patients diagnosed with bipolar disorder (BD) and to determine whether the risk is greater relative to patients prescribed lithium. This retrospective observational study utilizes US population-based claims data assembled by PharMetrics Inc., comprising 47 918 patients diagnosed with BD. Patients were included if they were at least 18 years old and initiated a new monotherapy prescription of either gabapentin (n=2421) or lithium (n=3101). Patients were followed for up to 1 year. Gabapentin patients contributed 915.8 person-years (PY) of follow-up time; lithium patients contributed 1421.3 PY. There were 21 suicide/self-harm events in the gabapentin group and 16 in the lithium group. Unadjusted incidence rates were 22.9 and 11.3/1000 PY in the gabapentin and lithium groups, respectively (P=0.03). After adjusting for concomitant medications, comorbid diagnoses, age, sex, and history of suicide/self-harm, the hazard ratio was 2.3 (95% confidence interval: 1.2–4.5). A propensity score-matched analysis accounting for pre-existing illnesses and medications supports this finding, with an adjusted hazard ratio of 2.1 (95% confidence interval: 1.02–4.5). Relative to lithium, the use of gabapentin is significantly associated with a doubling of the risk of suicidality in patients diagnosed with BD.
Source: International Clinical Psychopharmacology - Category: Psychiatry Tags: ORIGINAL ARTICLES Source Type: research

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Source: Psychiatry Investigation - Category: Psychiatry Tags: Psychiatry Investig Source Type: research
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Source: Epidemiology and Psychiatric Sciences - Category: Psychiatry Tags: Epidemiol Psychiatr Sci Source Type: research
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Source: Medical Journal of Australia - Category: General Medicine Tags: Med J Aust Source Type: research
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Source: World of Psychology - Category: Psychiatry & Psychology Authors: Tags: Happiness Mental Health and Wellness Not Crazy Podcast Psychiatry Psychology Psychotherapy Stigma Treatment Source Type: blogs
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Source: SafetyLit - Category: International Medicine & Public Health Tags: Research Methods, Surveillance and Codes, Models Source Type: news
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Source: Epidemiology and Psychiatric Sciences - Category: Psychiatry Tags: Epidemiol Psychiatr Sci Source Type: research
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Source: SafetyLit - Category: International Medicine & Public Health Tags: Age: Adolescents Source Type: news
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Source: Journal of Dual Diagnosis - Category: Addiction Tags: J Dual Diagn Source Type: research
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Source: NeuroImage: Clinical - Category: Radiology Source Type: research
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