Author:
Inoue Yuichi,Takaesu Yoshikazu,Koebis Michinori
Abstract
Abstract
Background
Although long-term use of benzodiazepines and benzodiazepine receptor agonists (BZDs) has been associated with an increased risk of dependence, the incidence, details of clinical manifestations, and triggering factors of withdrawal symptoms associated with long-term BZD use at common clinical doses remain unclear.
Methods
In a multicenter, open-label study of 123 Japanese patients with insomnia, patients were given a common clinical dose of eszopiclone (2 mg) for 24 weeks, and then treatment was abruptly discontinued. Withdrawal symptoms were evaluated using the Benzodiazepine Hypnotics Withdrawal Symptom Scale (BHWSS). The Insomnia Severity Index (ISI) was used to rate insomnia severity during treatment and 2 weeks after discontinuation. Dependence and poor compliance during treatment without strict medication controls were evaluated with the Benzodiazepine Dependence Self Report Questionnaire short version (Bendep-SRQ SV) subscale sum scores for problematic use, preoccupation, and lack of compliance. Associations between the presence of clinically relevant withdrawal symptoms (BHWSS≥7) and demographic measures, ISI scores at Week 24, and Bendep-SRQ SV subscale sum scores were evaluated by multivariable stepwise logistic regression analyses.
Results
Seventy-six patients completed treatment and 2 weeks of withdrawal; eight (10.5%) had clinically relevant withdrawal symptoms. On multiple logistic regression analysis, Bendep-SRQ SV subscale sum scores were correlated with withdrawal symptoms (odds ratio, 1.650; 95% confidence interval, 1.105–2.464; p = 0.014). Exacerbation of post-discontinuation insomnia was not significantly different between patients who showed clinically relevant withdrawal symptoms and those who did not (p = 0.245).
Conclusions
Dependence and poor compliance may contribute to withdrawal symptoms with long-term BZD use. Providing guidance to ensure proper compliance is thought to be the best way to mitigate withdrawal symptoms.
Trial registration
UMIN000024462 (18/10/2016).
Publisher
Springer Science and Business Media LLC
Subject
Psychiatry and Mental health
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