Trends in the long-term use of benzodiazepine anxiolytics and hypnotics: A national register study for 2006 to 2014

Identifying Medication Review Topics to Be Documented in a Structured Form in Electronic Health Record Systems: Delphi Consensus Survey

BACKGROUND

Poor data transfer and interoperability between electronic health record (EHR) systems has been a challenge hindering availability and usability of patient information in clinical practice and evidence-based decision-making. To improve data transfer and interoperability, patient information should be documented in a structured format. This also applies to medication-related patient information and results of the interventions, such as medication reviews (MRs), to individually optimize medication regimens, especially in older adults.

OBJECTIVE

This study aimed to identify what information obtained from MRs should be documented in a structured form in EHRs at a national and organizational level.

METHODS

The study was conducted as a 3-round Delphi consensus survey in 2020. The electronic survey was based on a comprehensive inventory of international and national MR procedures in various settings. Expert panelists (N=41) independently assessed which topics should be documented in a structured form in EHRs. The interprofessional panel (N=41) consisted of 12 physicians, 13 pharmacists, 10 nurses, and 6 information management professionals (participation rate 66%-76% in rounds 1-3; consensus limit set at 80%). The responses were analyzed quantitatively and qualitatively.

RESULTS

Consensus was reached on 97.3% (108/111) of predetermined topics to be documented in a structured form in EHRs. Of these, 39 concerned the MR process, 25 related to potentially drug-induced symptoms, 11 related to burden of risks for adverse drug effects, 12 related to laboratory tests and other test results, 12 related to medication adherence, and 9 related to the use of intoxicants. The patient's blood pressure (mean 4.85, SD 0.53; on a Likert scale 1-5), kidney function (mean 4.81, SD 0.56), and risk of bleeding (mean 4.81, SD 0.56) were ranked as the 3 most important topics to be documented in a structured form. The panel reached a consensus that the information obtained from MRs should be made available to all health care professionals in the national digital repository for patient data and to patients to some extent.

CONCLUSIONS

The interprofessional expert panel strongly agreed on the results of the MRs that should be documented in a structured form in EHRs and made available to both health professionals involved in care teams and patients themselves.

Visualizing the spatial distribution of Alprazolam in the mouse brain following nasal administration using desorption electrospray ionization mass spectrometry imaging

Alprazolam (Alp), a triazolobenzodiazepine, is widely prescribed for the treatment of sleep disorders, anxiety, and panic disorder. While oral administration remains the standard route, its slow onset of action has prompted interest in intranasal delivery as an alternative, offers the potential for direct drug delivery to the brain. This study aims to develop a fast-acting intranasal formulation of Alp (Alp-nd). Safety evaluations were conducted using mucociliary toxicity tests in bullfrogs and ciliary toxicity tests in rats, demonstrating that Alp-nd was safe and did not cause damage to the nasal mucosa. The righting reflex test was employed to assess the dose-response effect of Alp-nd on sleep in mice, revealing a 95 % effective dose (ED95) of 1.81 mg/kg, which is lower than that observed with intragastric administration (Alp-ig). A comparison of the pharmacodynamics, plasma pharmacokinetics, and brain distribution between intranasal and intragastric administration was performed. Sleep phase analysis revealed that Alp-nd significantly shortened sleep latency and prolonged sleep duration compared to Alp-ig. LC-MS/MS analysis indicated that Alp plasma concentrations were significantly higher at 5 and 10 min post-dosing with Alp-nd compared to Alp-ig. Furthermore, desorption electrospray ionization-time of flight mass spectrometry imaging (DESI-MSI) demonstrated that Alp-nd significantly increased Alp content in the olfactory bulb within 2-5 min, and in the cortex, thalamus and hypothalamus within 2-30 min, and in the pineal gland within 5-30 min. These results suggest that the Alp-nd shortens sleep latency via the nose-to-brain pathway and extends sleep duration by increasing Alp concentrations in sleep-related brain regions.

Trends in the use and nonmedical use of sedatives-hypnotics in the population aged 12 to 64 years in Taiwan: a comparative analysis of the national surveys in 2014 and 2018

BACKGROUND

Many countries, including Taiwan, have tightened regulations on prescribing sedatives-hypnotics over the concern of their associated adverse health effects. However, it remains seldom investigated whether different age-sex strata have differential trends in national surveys over time for either the use or nonmedical use (NMU) of sedatives-hypnotics. Comparing Taiwan's two national surveys in 2014 and 2018, we aimed to examine (1) the population's trends for the prevalence of past-year use and NMU of sedatives-hypnotics overall and in age-sex strata; (2) trends for sociodemographic subgroups for those age-sex strata with significant changes in past-year use and NMU of sedatives-hypnotics over time; and (3) trends for sources of and motives for NMU of sedatives-hypnotics.

METHODS

The national survey enrolled 17,837 participants in 2014 (response rate = 62.2%) and 18,626 participants in 2018 (response rate = 64.6%) of citizens aged 12-64 years. Each participant anonymously completed a computer-assisted self-interview. The questionnaire consisted of sociodemographic variables and the use of various psychoactive substances and sedative-hypnotics, among others. NMU of sedative-hypnotics was defined as using the drug without a prescription, or more frequently, or in larger doses than prescribed. To compare the prevalence between the two waves, we conducted multivariable logistic regression analysis and the difference-in-differences in prevalence was examined with an interaction term between survey year and sex.

RESULTS

We found decreasing trends in young adult (18-39 years old) males for both past-year use (3.07-2.29%) and NMU (0.84-0.18%), but increasing trends in adolescents (0.42-0.80%) and young adult females (2.91-3.81%) for past-year use and in adolescents (0.16-0.39%) and middle-aged adult (40-64 years old) females (0.73-1.14%) for past-year NMU of sedatives-hypnotics. Among the young and middle-aged adult females, the increasing trends for past-year use and NMU, respectively, were found to occur mainly in certain sociodemographic subgroups, with alcohol users being the overlapping subgroup.

CONCLUSIONS

The differential trends over time of past-year use or NMU of sedatives-hypnotics in different age-sex strata in the population have policy implications to curtail the increasing trend over time.

Consumption patterns and factors associated with inappropriate prescribing of benzodiazepines in Primary Health Care settings

BACKGROUND

Benzodiazepines are frequently prescribed to treat anxiety and insomnia, but long-term use has been associated with the development of dependence, tolerance, and cognitive decline, especially among older adults. This study aimed to investigate the pattern of consumption and factors associated with inappropriate prescribing of benzodiazepines in primary health care.

METHODS

This is a cross-sectional analytical study, using dispensing records of diazepam, clonazepam, and nitrazepam from public pharmacies in a Brazilian municipality between 2018 and 2022. Metrics for benzodiazepine consumption were DDD (Defined Daily Dose) and DDD/1000PD (per 1000 population per day). Long-term/prolonged benzodiazepine use was defined as consuming at least 90 DDD and at least 2 dispensations per year. To ascertain associations between long-term use and predictor variables, a multivariate logistic regression model was utilized.

FINDINGS

A total of 40402 participants were included, with an average age of 55 years (SD = 0.30), 38.5% were older aged. Diazepam and nitrazepam exceeded the daily dose recommended. There was a reduction in diazepam consumption during the study period, as calculated by DDD/1.000PD, while the consumption of other benzodiazepines remained stable. However, a significant increase in diazepam consumption is noted when considering the last decade. Prolonged use was observed in 29.1% of participants, with a significant prevalence among the older people (34.8% of them were long-term users) and advancing age was identified as a risk factor for long-term use. Higher PDDs were also associated with long-term use and aging. Participants who used different benzodiazepines during the period had a higher risk of prolonged use.

CONCLUSIONS

These results provide insights into the prevalence of problematic utilization of benzodiazepines in primary health care. Authorities and health care providers must take steps to encourage gradual cessation of prolonged benzodiazepine prescriptions and the embrace of suitable strategies for addressing anxiety and insomnia within primary health care settings.

Use and misuse of psychoactive medicines: a descriptive cross-sectional study in a densely populated region of Portugal

Introduction

Although psychoactive medicines (PMed) are needed in several psychiatric conditions, their use and misuse bear risks. We aimed at estimating the prevalence of PMed use and misuse.

Methods

Data on all PMed prescribed in 2017 and dispensed in community pharmacies of the Lisbon and Tagus Valley region of Portugal (ARSLVT) were extracted from ARSLVT medicines' dispensing database. For 21 PMed among prescription opioids, benzodiazepines and z-drugs (BZDR), antidepressants (AD) and anticonvulsants (AC), we estimated the number of users of each PMed, and assessed PMed misuse by a set of proxy indicators for studying this practice: chronic use (use of ≥180 DDD during the study period) of PMed intended for short-term treatments, concomitant use of several PMed, in particular if involving long-term (≥ 30 days) opioid analgesic (OA) use, and doctor shopping (patients consulting several physicians in order to have access to a quantity higher than intended by each prescriber). Data were analysed using descriptive statistics and hypothesis testing, and multivariate logistic regression was used to explore potential factors affecting long-term concomitant treatment of chronic OA with other PMed.

Results

PMed use prevalence was 21.7%: 6.6% for OA, 12.7% for benzodiazepines (BZD), 5.3% for AD and 2.8% for AC. BZDR were mainly prescribed in primary care and OA in hospital outpatients. Chronic use of PMed was observed in 25%, especially with sertraline and buprenorphine for opioid use disorder (long-term treatment), and lorazepam (short-term treatment). About 56.6% of OA chronic users were long-term concurrent users with other PMed, mainly BZDR. Risk of abuse was low for BZDR, whilst four opioids had meaningful doctor shopping indicators - fentanyl, opioid use disorder buprenorphine, morphine and hydromorphone.

Conclusions

BZD are the main PMed used in ARSLVT, often chronically, especially lorazepam. Prevalence of OA use is low, although with higher risk of misuse than BZDR. Concomitant use of several PMed is frequent.

Delphi method applicability in drug foresight

BACKGROUND

The aim of the current study was to assess the accuracy of expert predictions, which were derived using a Delphi panel foresight study between 2009 and 2011, on a variety of drug-related topics in Finland in 2020.

METHODS

The material used to evaluate the accuracy of the predictions consists of published reports on statistics, survey results, official register data, wastewater analyses and official documents. Whenever possible, we used multiple information sources to ascertain possible changes related to the predictions.

RESULTS

Between 2009 and 2011, the majority - but not all - of the experts accurately predicted an increase in drug use. Indeed, more people experimented with or used drugs, and more drug residues were found in wastewater monitoring. The experts also correctly predicted an increase in population-level approval of drug use, but this development has been rather slow. Contrary to predictions, there was no marked increase in the use of new synthetic drugs. However, the misuse of buprenorphine increased during the 2010s. In the drug market, unit prices were surprisingly stable over the ten-year period. There were no changes in legislation related to the legal status of drugs, as was foreseen by the experts. However, enforcement moved in the direction foreseen by the experts: more lenient measures have been taken against users. Drug care system reforms favored a combination of mental health and addiction care units between 2009 and 2011, and 2020, as foreseen by the experts.

CONCLUSIONS

It seems to have been easier for the experts to foresee the continuation of existing trends, e.g., increasing use of drugs or widening approval of drugs, than to predict possible changes in the popularity of distinct groups of drugs such as new psychoactive substances (NPS). Even armed with the prediction that drug imports and wholesale would increasingly fall into the domain of organized crime, this undesirable development could not be stopped. Expert disagreement can also be seen as a valuable indication of uncertainty regarding the future. Foresight related to drug-related issues can produce relatively accurate and realistic views of the future at least up to ten years ahead.

Combination administration of alprazolam and N-Ethylmaleimide synergistically enhances sleep behaviors in mice with no potential CNS side effects

Background

N-Ethylmaleimide (NEM), an agonist of the potassium chloride cotransporters 2 (KCC2) receptor, has been correlated with neurosuppressive outcomes, including decreased pain perception and the prevention of epileptic seizures. Nevertheless, its relationship with sleep-inducing effects remains unreported.

Objective

The present study aimed to investigate the potential enhancement of NEM on the sleep-inducing properties of alprazolam (Alp).

Methods

The test of the righting reflex was used to identify the appropriate concentrations of Alp and NEM for inducing sleep-promoting effects in mice. Total sleep duration and sleep quality were evaluated through EEG/EMG analysis. The neural mechanism underlying the sleep-promoting effect was examined through c-fos immunoreactivity in the brain using immunofluorescence. Furthermore, potential CNS-side effects of the combination Alp and NEM were assessed using LABORAS automated home-cage behavioral phenotyping.

Results

Combination administration of Alp (1.84 mg/kg) and NEM (1.0 mg/kg) significantly decreased sleep latency and increased sleep duration in comparison to administering 1.84 mg/kg Alp alone. This effect was characterized by a notable increase in REM duration. The findings from c-fos immunoreactivity indicated that NEM significantly suppressed neuron activation in brain regions associated with wakefulness. Additionally, combination administration of Alp and NEM showed no effects on mouse neural behaviors during automated home cage monitoring.

Conclusions

This study is the first to propose and demonstrate a combination therapy involving Alp and NEM that not only enhances the hypnotic effect but also mitigates potential CNS side effects, suggesting its potential application in treating insomnia.

Sleep medicines are often prescribed for older adults (≥75 years) without appropriate dosing instructions: A nationwide retrospective register study in Finland

BACKGROUND

Sleep medicines should be prescribed cautiously, accompanied by instructions that ensure appropriate use and reduce risks. This is especially important for older adults, for whom many of these medicines are classified as potentially inappropriate medicines.

METHODS

We investigated the use and appropriateness of dosing instructions for sleep medicines (described in the Finnish National Current Care Guideline for Insomnia) prescribed for older adults (≥75 years) and dispensed with instruction label in pharmacies. The retrospective reimbursement register data for year 2020 by the Social Insurance Institution of Finland was used as the data source (1,080,843 purchases by 143,886 individuals of which 565,228 purchases were pharmacy dispenses). The appropriateness of the pharmacy dosing instructions containing keyword(s) referring to insomnia treatment was examined according to the prescribed dose, time of intake, frequency of use, and warnings/remarks. A random sample of 1000 instructions was used to manually analyze the phrasing and appropriateness.

OUTCOMES

We focused our analysis on 58.1% (328,285 purchases by 87,396 individuals) of the pharmacy dispenses, which contained dosing instructions referring insomnia treatment. Of these, zopiclone and mirtazapine were the most prescribed drugs (134,631 and 112,463 purchases, respectively). Dose and time of intake were specified in most of the instructions (98.4% and 83.4%, respectively), whereas frequency of use was specified in 57.3%. A small percentage of the instructions included warnings/remarks (2.8%). Overall, only 2.1% of the instructions contained information about a single dose, time of intake, temporary use, and warnings/remarks and were thus defined as sufficient. Notably, 47.7% (n = 515,615) of all the purchases in our dataset were dispensed via automated multi-dose dispensing systems, which is aimed for long-term treatment.

INTERPRETATION

It is common to prescribe sleep medicines for older adults without appropriate dosing instructions, particularly excluding warnings against long-term, regular use. Actions to change the current prescribing practices are warranted.

Minor tranquillizers for short-term treatment of newly onset symptoms of anxiety and distress: a systematic review with network meta-analysis of randomized trials

Unspecific symptoms of anxiety and distress are frequently encountered in patients in both general practice and acute psychiatric services. Minor tranquillizers may be a treatment option when non-pharmacological interventions are insufficient or unavailable. We conducted a systematic review with network meta-analysis of the evidence for short-term (1-4 weeks) pharmacological treatment of newly onset symptoms of anxiety and distress. We searched the PsycInfo, MEDLINE, EMBASE and Cochrane Library databases and extracted data following a predefined hierarchy of outcomes. We assessed risk of bias using the Cochrane Risk of Bias tool and the certainty of the evidence using the Grading of Recommendations Assessment, Development and Evaluation framework (GRADE). We included 34 randomized trials comprising a total of 7044 patients with adjustment disorders or anxiety spectrum disorders. The network meta-analysis showed that regarding the critical outcome symptoms of anxiety within 1-4 weeks benzodiazepines (SMD - 0.58, 95% CI - 0.77 to - 0.40), quetiapine (SMD - 0.51, 95% CI - 0.90 to - 0.13) and pregabalin (SMD - 0.58, 95% CI - 0.87 to - 0.28) all performed better than placebo with no statistically significant difference between the drugs. Data on other important outcomes were inconsistently reported. Adverse effects varied, but overall, it was uncertain whether adverse effects differed between interventions. The evidence regarding the risk of dependence was uncertain, but dependence may be a concern in susceptible individuals even with short-term treatment. Overall, the certainty of the evidence according to GRADE was rated as low to very low across outcomes. Despite the limitations in the evidence, the results of this review can inform treatment guidelines, supporting clinicians in the choice of minor tranquillizer in this prevalent and help-seeking, clinically heterogeneous population.

New users of anxiolytics and sedatives in Sweden-Drug type, doses, prescribers' characteristics, and psychiatric comorbidity in more than 750,000 patients

OBJECTIVES

Anxiety and sleep disorders are common in the population and anxiolytics and sedatives are widely used. Our aim was to describe the drug utilization of new users of anxiolytics and sedatives in adults including type of drug, doses, prescribers' characteristics, and psychiatric comorbidity.

METHODS

A register-based cohort study of new users (18-64 years) of anxiolytics and sedatives in 2015-2019, free of any such drug 5 years prior to inclusion. The individuals were linked to national registers on dispensed drugs and recorded diagnoses.

RESULTS

In total, 764,432 new users of anxiolytics and sedatives were identified, which corresponds to an incidence of 26/1000 inhabitants and year. The proportion of new users of benzodiazepines (including both anxiolytics and sedatives) decreased, whereas the proportion of sedative antihistamines and melatonin increased. The most common drug dispensed was hydroxizin (33%) followed by benzodiazepine related drugs (zopiclone and zolpidem; 20%), propiomazine (14%) and benzodiazepines (13%). The majority (68%) of the prescriptions were from primary care. Most new users were prescribed 1-30DDDs and 52% among women and 49% among men were dispensed their drug only once during the first year. Half of the new users had a previous comorbid psychiatric disorder.

CONCLUSIONS

The findings are well reflecting the recommendations in national guidelines.

Long-Term Use of Benzodiazepines and Benzodiazepine-Related Drugs: A Register-Based Danish Cohort Study on Determinants and Risk of Dose Escalation

OBJECTIVE

The authors investigated the frequency and determinants of long-term use and risk of dose escalation of benzodiazepines and benzodiazepine-related drugs (benzodiazepine receptor agonists, or BZRAs).

METHODS

All adults ages 20-80 years living in Denmark on January 1, 2000 (N=4,297,045) were followed for redeemed prescriptions of BZRAs in the Danish National Prescription Registry from January 1, 2000, to December 31, 2020. For each drug class, we calculated long-term use for more than 1 or 7 years, and dose escalation measured as increase in dose to a level above the recommended level. Associations were examined using logistic regression.

RESULTS

The authors identified 950,767 incident BZRA users, of whom 15% and 3% became long-term users for more than 1 or 7 years, respectively. These percentages were highest for individuals who initiated Z-drugs (17.8% and 4%). Among the 5% of BZRA users who had at least 3 years of continuous use, there was no indication of dose escalation, as the median dose remained relatively stable. However, 7% (N=3,545) of BZRA users escalated to doses above the recommended level. Psychiatric comorbidity, especially substance use disorder, was associated with higher risk of long-term use and dose escalation.

CONCLUSIONS

A limited portion of the population that received BZRA prescriptions were classified as continuous users, and only a small proportion of this group escalated to doses higher than those recommended in clinical guidelines. Thus, this study does not, under the current regulations, support the belief that BZRA use frequently results in long-term use or dose escalation.

Development and validation of a theory-based questionnaire examining barriers and facilitators to discontinuing long-term benzodiazepine receptor agonist use

BACKGROUND

Long-term use of benzodiazepine receptor agonists (BZRAs) is a persistent healthcare challenge and poses patient safety risks. Interventions underpinned by behaviour change theory are needed to support discontinuation of long-term BZRA use. The aim of this study was to develop and validate a questionnaire based on the Theoretical Domains Framework (TDF) to examine mediators of behaviour change relating to the discontinuation of long-term BZRA use.

METHODS

An initial 52 item questionnaire was developed using the 14 domains of TDF version 2 and iteratively refined over two rounds. The questionnaire was disseminated online via online support groups that focused on BZRAs to community-based adults with either current or previous experience of taking BZRAs on a long-term basis (≥3 months). Confirmatory factor analysis was undertaken to assess the questionnaire's reliability, discriminant validity and goodness of fit. The Standardized Root Mean Square Residual (SRMR), Root Mean Square Error of Approximation (RMSEA) and Comparative Fit Index (CFI) were calculated.

RESULTS

Following an iterative process of adjustment, the results obtained from confirmatory factor analysis resulted in the final questionnaire consisting of 29 items across nine theoretical domains. The internal consistency reliability values across these domains ranged from 0.62 to 0.85. For the final model, the SRMR was 0.23, the RMSEA was 0.11 and the CFI was 0.6.

CONCLUSIONS

The questionnaire offers a potential tool that could be used to identify domains that need to be targeted as part of a behaviour change intervention at an individual patient level. Further research is needed to assess the questionnaire's acceptability and usability, and to develop a scoring system so that domains can be prioritised and subsequently targeted as part of an intervention.

Global trends in the consumption of benzodiazepines and Z-drugs in 67 countries and regions from 2008 to 2018: a sales data analysis

STUDY OBJECTIVES

To investigate the trends in the consumption of benzodiazepines (BZDs) and Z-drugs at global, regional, and national levels from 2008 to 2018, across 67 countries and regions.

METHODS

This cross-sectional descriptive study investigated the consumption of BZDs and Z-drugs analyzed by global pharmaceutical sales data from the IQVIA-Multinational Integrated Data Analysis System database between 2008 and 2018. Consumption was measured in defined daily dose (DDD) per 1000 inhabitants per day (DDD/TID). The global, regional, and national trends were estimated using linear mixed models. Additional analyses were conducted by grouping countries by income level. The association between consumption and Gross Domestic Product (GDP) and the prevalence of different medical conditions was explored in univariable linear models.

RESULTS

BZD consumption decreased annually by -1.88% (95% CI: -2.27%, -1.48%), and Z-drugs increased by + 3.28% (+2.55%, +4.01%). In 2008, the top ten countries for BZD and Z-drug consumption were all European, ranging from 63.69 to 128.24 DDD/TID. Very low levels were found in Russia, Kuwait, United Arab Emirates, Saudi Arabia, French West Africa, and the Philippines, with DDD/TID < 1. The consumption in high-income countries was much higher than in middle-income countries. The results showed that increased consumption of BZDs and Z-drugs was statistically associated (p < 0.05) with higher GDP and increased prevalence of anxiety, self-harm, neurological disorders, chronic respiratory diseases, cardiovascular diseases, and cancers.

CONCLUSIONS

Distinct differences in consumption and trends of BZDs and Z-drugs were found across different countries and regions. Further exploration is needed to understand the association and safety of the use of BZDs and Z-drugs in patients with comorbidities.

Mitochondrial dysfunction following repeated administration of alprazolam causes attenuation of hippocampus-dependent memory consolidation in mice

The frequently repeated administration of alprazolam (Alp), a highly effective benzodiazepine sedative-hypnotic agent, in anxiety, insomnia, and other diseases is closely related to many negative adverse reactions that are mainly manifested as memory impairment. However, the exact molecular mechanisms underlying these events are poorly understood. Therefore, we conducted a proteomic analysis on the hippocampus in mice that received repeated administration of Alp for 24 days. A total of 439 significantly differentially expressed proteins (DEPs) were identified in mice with repeated administration of Alp compared to the control group, and the GO and KEGG analysis revealed the enrichment of terms related to mitochondrial function, cycle, mitophagy and cognition. In vitro experiments have shown that Alp may affect the cell cycle, reduce the mitochondrial membrane potential (MMP) to induce apoptosis in HT22 cells, and affect the progress of mitochondrial energy metabolism and morphology in the hippocampal neurons. Furthermore, in vivo behavioral experiments including IntelliCage System (ICS) and nover object recognition (NOR), hippocampal neuronal pathological changes with HE staining, and the expression levels of brain-deprived neuron factor (BDNF) with immunohistochemistry showed a significant decrease in memory consolidation in mice with repeated administration of Alp, which could be rescued by the co-administration of the mitochondrial protector NSI-189. To the best of our knowledge, this is the first study to identify a link between repeated administration of Alp and mitochondrial dysfunction and that mitochondrial impairment directly causes the attenuation of memory consolidation in mice.

The epidemiology of new persistent hypnotic/sedative use after surgical procedures: a retrospective cohort study

The use of hypnotic and sedative medication for sleep improvement is common and long-term use has been associated with an increased risk of adverse events and mortality. A proportion of patients might develop long-term use after initiating new persistent use following surgery. This retrospective cohort study aimed to determine the incidence of new persistent hypnotic/sedative use after surgical procedures and associated patient and procedural factors. Data on prescriptions for hypnotic and sedative medications used for sleep improvement were retrieved from the National Prescription Medicine Registry. Medication naivety was defined as not filling a prescription for hypnotics/sedatives from 365 days through 31 days preceding surgery, new use was defined as medication naivety followed by filling a prescription for hypnotic/sedative medication from 30 days before surgery through 14 days after surgery. New persistent hypnotic/sedative use was defined as new use followed by filling another hypnotic/sedative prescription from 15 days through 365 days after surgery. Of 55,414 patients included in the study, 43,297 were naive to hypnotic/sedative medications. Of those naive patients, 4.6% met the criteria for new peri-operative use, of whom 51.6% developed new persistent hypnotic/sedative use. Patient and procedural factors associated with increased risk of new persistent use were older age; female sex; the presence of malignant neoplasm; ischaemic heart disease; and having undergone either cardiac or thoracic surgery. The hazard of long-term mortality was higher for patients with new persistent use (1.39, 95%CI 1.22-1.59) compared with patients who remained naive. While a small ratio of surgical patients initiates the use of hypnotics/sedatives in the peri-operative period, a substantial proportion of these develop persistent use, which is associated with adverse outcomes. Over time, the proportion of patients using hypnotics/sedatives has declined, but the risk of persistent use within this group has remained stable.

"At the time I only wanted to relieve stress": Exploring motivation for behaviour change in long-term hypnotic users

Background

Motivating patients to discontinue long-term benzodiazepine receptor agonist (BZRA) use for insomnia remains an important challenge in primary care because of the medication's unfavourable risk-benefit profile. Previous studies have shown that understanding the complexity of patients' motivation is crucial to the primary care physician for providing effective interventions efficiently. Theoretical frameworks about behaviour change show that motivation is a multi-layered concept that interacts with other concepts, which aligns with a holistic perspective or implementation of the biopsychosocial model.

Aim

Exploring primary care patients' views and ideas on what factors helped or hindered them in discontinuing long-term BZRA use, in relation to motivation as conceptualised in the Behaviour Change Wheel, and associated domains of the Theoretical Domains Framework.

Design and setting

A qualitative study with semi-structured interviews in primary care in Belgium between September 2020 and March 2021.

Method

Eighteen interviews with long-term hypnotic users were audio recorded, transcribed and thematically analyzed, using the Framework Method.

Results

The success of discontinuation interventions does not solely rely on patients' spontaneous sense of striving for improvement. Reinforcement and identity were found to be important domains for motivation. Beliefs about personal capabilities, and about consequences of both BZRA intake and discontinuation, differed between previous and current users.

Conclusion

Motivation is a multi-layered concept which is not fixed in time. Patient empowerment and goal setting could help long-term BZRA users to lower their intake. As well as public health interventions that might change social attitudes towards the use of hypnotic medication.

Use of prescription benzodiazepines and related drugs in family caregivers: a nation-wide register-based study

BACKGROUND

objective indicators of sleep and mental health problems in family caregivers have rarely been reported.

OBJECTIVE

to study the use of prescription benzodiazepines and related drugs (BZDRD) in Finnish family caregivers and matched controls.

DESIGN

prospective follow-up in 2012-17.

SETTING

nationwide register-linkage study.

SUBJECTS

all individuals who received family caregiver's allowance in Finland in 2012 (N = 42,256; mean age 67 years; 71% women) and controls matched for age, sex and municipality of residence (N = 83,618).

METHODS

information on purchases of prescription BZDRD, including the number of defined daily doses (DDDs), between 2012 and 2017 was obtained from the Dispensations Reimbursable under the National Health Insurance Scheme register. Background information was obtained from national registers.

RESULTS

more caregivers than controls used BZDRD, both among women (users per 100 person-years: 17.2 versus 15.2, P < 0.001) and men (14.6 versus 11.8, P < 0.001). These differences were largely explained by hypnotic BZDRD use. There were also more long-term BZDRD users per 100 person-years among caregivers than controls, both among women (5.0 versus 4.3, P = 0.001) and men (5.3 versus 3.8, P < 0.001). Use of hypnotic BZDRD in number of DDDs was higher in caregivers than in controls, particularly among men above 50 years. Caregivers used more anxiolytic BZDRD than controls from middle age to 75 years but less in the oldest age groups.

CONCLUSIONS

higher level of BZDRD use among caregivers indicates that caregivers have more sleep and mental health problems than non-caregivers. Adequate treatment of these problems and support for caregiving should be ensured for caregivers.

Evolution of benzodiazepine receptor agonist prescriptions in general practice: A registry-based study

Background

Contrary to most European guidelines, benzodiazepine receptor agonists (BZRA) are often used continuously at a low dosage, being the most common form of long-term use. In Belgium, BZRA use is monitored by analyzing self-report data about medication use in the last 24 h. This method provides insufficient insight into the terms of use of these psychoactive drugs.

Aim

To describe trends in BZRA prescribing in Flanders, Belgium, between 2000 and 2019.

Design and setting

Population-based trend analysis and a case-control study for the year 2019 were done with data from a morbidity registry in general practice.

Methods

Repeated cross-sectional and joinpoint regression analyses revealed trends in sex- and age-standardized prescription rates among adult patients (18+).

Results

Overall, BZRA prescriptions increased. The highest overall increase was found among male patients 18-44 years old, with an average annual percentage change of 2.5 (95% CI: 0.9, 4.3). Among 65+ female patients, a decrease was found since 2006, with an annual percentage change of -0.7 (95% CI: -1.3, -0.1). In 2019, 12% of registered patients received minimally one prescription, long-term use was observed in 5%, back pain was the most common morbidity significantly associated with a rise in BZRA prescriptions, and zolpidem was the most prescribed BZRA (22%).

Conclusion

Despite some statistically significant decreasing trends, an overall increase in BZRA prescriptions was observed throughout the 19-year study period, especially among long-term users of 18-44 years and 65-plus. Zolpidem became the most prescribed BZRA and warrants more attention.

An examination of the medicalization and pharmaceuticalization processes of anxiety and depressive disorders in Belgium between 2004 and 2013: how may both disorders be intertwined?

Background

While medicalization and pharmaceuticalization trends of feelings of anxiety and depression have been described in great detail, an empirical examination of these trends is to date lacking. The current study fills this gap in the literature by mapping the use of psychotropic medicines for feelings of anxiety and depression between 2004 and 2013 in Belgium, as well as by examining whether a social gradient might act as a mediator.

Methods

We analyzed data from three repeated cross-sectional waves (2004, 2008, and 2013) of the Belgian National Health Interview Survey (HIS). Multinomial logistic regression was applied to estimate odds in psychotropic drugs use over the observed period.

Results

Using an ideal-typical distinction between traditional anxiety drugs (psycholeptics) and depression drugs (psychoanaleptics), we found that treatment methods for feelings of anxiety and depression were converging. Persons having feelings of anxiety consumed less psycholeptic drugs, in favor of psychoanaleptic drugs throughout the observed period. Moreover, these results were partially mediated by educational level. Persons with higher education were less likely to consume psychotropic drugs than those with lower education, suggesting a trend of demedicalization for feelings of anxiety and depression.

Limitations

Our study observes a limited period, makes use of an ideal typical distinction between psycholeptic and psychoanaleptic drugs, and measurements may be biased by response-bias due to psychotropic drugs use.

Conclusion

Our study shows that psycholeptics increasingly give way to psychoanaleptics in the treatment of both anxiety and depression, despite several scientists calling their effectiveness for both disorders into question.

The Characteristics of Benzodiazepine Prescribing in the Republic of Srpska, Bosnia and Herzegovina

Background and Objectives: Benzodiazepines (BZDs) are among the most prescribed psychotropic drugs and significant number of patients use these drugs for longer periods than recommended. The objective of this study was to determine the factors associated with prescribing of BZDs at the primary healthcare level. Materials and Methods: A retrospective analysis of family physicians’ prescriptions from the databases of family medicine teams of the Republic of Srpska was performed. The number of BZDs users, as well as the total number of prescriptions, were determined. Thereafter, it was determined which specific BZD had been prescribed, in which dose, for how long, as well as the specific social and demographic characteristics of patients to whom the drugs were prescribed. Results: The results showed that 38.47% of patients used the BZDs for a period longer than six months. The most frequent BZDs prescribed were the intermediate-acting BZDs, primarily bromazepam (58.69%). Two thirds of patients were women. The average age of the patients was 60, 60.46% of patients were single, and 69.68% lived in urban areas. The longer uses of BZDs were recorded in women, the elderly, single people and those who lived in urban areas, while higher doses of BZDs were prescribed to men, as well as younger and married people. The highest positive correlation was found between the dose and length of use of BZD. Conclusions: A significant percentage of patients used BZDs for a time period longer than recommended. Caution is necessary when prescribing BZDs to women, the elderly, patients that live in urban areas and patients who are single. When prescribing BZDs, family physicians should be aware of their potential interactions and addictive potentials.

Long-term benzodiazepines and z-drug prescribing in Australian general practice between 2011 and 2018: A national study

Despite reducing benzodiazepine prescribing, benzodiazepine-involving deaths have substantially increased in Australia. This study aimed to explore patterns in long-term prescribing of medications (benzodiazepine and z-drugs [BZD]) used for sleep-issues/insomnia in Australia to better understand these changes. Open cohort study using de-identified electronic health records of 1 414 593 adult patients regularly attending 404 Australian general practices from 2011 to 2018 (MedicineInsight). We used logistic regression adjusted for patient and practice characteristics to; (1) estimate long-term BZD prescribing prevalence (≥3 prescriptions in 6 months) and the associated sociodemographic factors, and (2) Poisson regression to compute annual changes in prescribing rates. Long-term BZD prescribing changed from 4.4% in 2011 to 5.8% in 2015, remaining relatively stable until 2018 (annual increase +2.5% [95% CI +2.0%;+3.0%]). Long-term BZD prescribing in any year was up to six times more likely in elderly rather than in younger patients and 30%-43% more prevalent in females, or patients living in or attending a practice located in more disadvantaged areas. The increase was more pronounced among males, adults aged 35-49 years, and individuals living in advantaged areas. The median duration among incident cases decreased from 1183 to 322 days between 2011 and 2017, and was up to 197 days longer among elderly females than males. Despite a slight increase and recent stability in long-term BZD prescribing, the higher rates and durations among elderly patients, women, or those living in more disadvantaged areas are concerning and highlights the need for interventions that reduce the potential harms of long-term BZD use in vulnerable groups.

Psychotropic medicine consumption in 65 countries and regions, 2008-19: a longitudinal study

BACKGROUND

The WHO Comprehensive Mental Health Action Plan 2013-2030 encourages routine collection and reporting of a set of essential mental health indicators, including the availability of psychotropic medicines. The global monitoring of country-level psychotropic medicine consumption trends can provide information on the extent of the availability of psychotropic medicines. The primary objective of this study was to investigate global trends in psychotropic medicines consumption from 2008 to 2019 across 65 countries and regions according to country income level and geographical region.

METHODS

In this longitudinal trends study, we used pharmaceutical sales data from the IQVIA-Multinational Integrated Data Analysis System (IQVIA-MIDAS). We analysed monthly sales data of psychotropic medicines between Jan 1, 2008, and Dec 31, 2019. Total psychotropic medicine consumption included sales of antidepressants, antipsychotics, tranquilisers, sedatives or hypnotics, and mood stabilisers. Population estimates of each country or region (eight lower-middle-income countries, 19 upper-middle-income countries, and 38 high-income countries) were based on the UN World Population Prospects 2019 report. Average annual sales trends of psychotropic medicines, expressed as defined daily dose (DDD) per 1000 inhabitants per day, were estimated using a random-effects model adjusted for income level and region. Relative changes in the annual consumption of psychotropic medicines by income, expressed as DDD per 1000 inhabitants per day, were assessed as percentage change for each medicine class.

FINDINGS

Psychotropic medicine sales increased from 28·54 DDD per 1000 inhabitants per day in 2008 to 34·77 DDD per 1000 inhabitants per day in 2019, corresponding to a 4·08% (95% CI 2·96-5·21) relative average increase annually. The absolute annual increase was greater in high-income countries (3·31 DDD per 1000 inhabitants per day, 95% CI 3·01-3·61) compared with upper-middle-income countries (1·94 DDD per 1000 inhabitants per day, 1·45-2·44) and low-middle-income countries (0·88 DDD per 1000 inhabitants per day, 0·62-1·13; p<0·0001). The relative average annual increase in psychotropic medicine sales from 2008 to 2019 was greater in upper-middle-income countries (7·88%, 95% CI 6·99-8·77) than in lower-middle-income countries (2·90%, 2·40-3·39) and high-income countries (1·02%, 0·80-1·24). In 2019, the regional consumption of psychotropic medicines varied greatly, with the highest sales of all psychotropic medicine classes reported in northern America (167·54 DDD per 1000 inhabitants per day) and lowest sales reported in Asia (5·59 DDD per 1000 inhabitants per day). 17 countries had very low consumption of psychotropic medicines in 2019, including high-income countries and countries with a high prevalence of mental disorders.

INTERPRETATION

The consumption of psychotropic medicines has increased over a 12-year period, and although the absolute growth rate was highest in high-income countries, the relative growth is highest in middle-income countries and especially upper-middle-income countries. Disparities in psychotropic medicine consumption of countries can only partly be explained by geographical location and income. Greater efforts are needed to increase the availability of psychotropic medicines in countries with very low consumption, which is probably due to financial or cultural reasons as well as scarcity of trained health-care professionals to prescribe psychotropic medicines.

FUNDING

None.

Trends in benzodiazepine and alternative hypnotic use in relation with multimorbidity among older adults in Quebec, Canada

BACKGROUND

Benzodiazepines and other hypnotic alternatives are associated with increased risks of adverse events. Heightened awareness of risks may have changed prescribing habits over the years. However, these trends are not fully described, especially in vulnerable people such as multimorbid older adults.

OBJECTIVE

We aimed to describe the annual prevalence of benzodiazepine and other hypnotic use in relation to multimorbidity among older adults in the province of Quebec, Canada, from 2000 to 2016.

METHOD

We conducted a population-based study using the Quebec Integrated Chronic Disease Surveillance System. We included all individuals aged ≥66 years covered by the public drug plan. For each year, we evaluated the sex- and age-standardized proportion of benzodiazepine and other hypnotic users, defined as individuals with at least one drug claim in the year. We stratified our results according to multimorbidity and used log-binomial regression to study trends.

RESULTS

The proportion of individuals using benzodiazepines decreased from 34.8% in 2000 to 24.8% in 2016 (p for trend <0.001). Multimorbid people (≥2 chronic diseases) remained the highest users over the years, with 43.3% and 30.6% of them being users in 2000 and 2016, respectively. Conversely, the proportion of users increased for other hypnotics, particularly for trazodone and quetiapine, rising from 5.4% to 8.4% (p < 0.001), and especially among multimorbid individuals (from 7.4% to 11.6%).

CONCLUSION

Older adults used benzodiazepines less frequently but quetiapine and trazodone more frequently in recent years. The use of these medications, particularly in multimorbid people at risk of adverse events, must be addressed.

Risk of long-term benzodiazepine and Z-drug use following the first prescription among community-dwelling adults with anxiety/mood and sleep disorders: a retrospective cohort study

OBJECTIVE

To measure the incidence of long-term benzodiazepine receptor agonist (BZRA) use among individuals with anxiety, mood and/or sleep disorders. To identify factors associated with long-term use following the first prescription.

METHODS

This was a population-based retrospective cohort study using administrative databases in Manitoba, Canada. Individuals with anxiety/mood or sleep disorder who received their first BZRA between 1 April 2001 and 31 March 2015 were included. Long-term use was defined as ≥180 days. Logistic regression modelling was used to examine predictors of long-term use.

RESULTS

Among 206 933 individuals included, long-term BZRA use in the first episode of use was 4.5% (≥180 days) following their first prescription. Factors associated with ≥180 days of use included male sex (adjusted OR (aOR) 1.33, 95% CI 1.27 to 1.39), age ≥65 (aOR 5.15, 95% CI 4.81 to 5.52), income assistance (aOR 1.68, 95% CI 1.55 to 1.81), previous non-BZRA psychotropic (aOR 1.93, 95% CI 1.83 to 2.02) or opioid use (aOR 1.16, 95% CI 1.11 to 1.22), high comorbidity (aOR 1.43, 95% CI 1.32 to 1.55), high healthcare use (aOR 1.46, 95% CI 1.33 to 1.60) and psychiatrist prescriber (aOR 2.11, 95% CI 1.93 to 2.32).

CONCLUSIONS

Less than 1 in 20 patients use BZRAs ≥180 days in their first treatment episode. Several factors were associated with long-term use following the first prescription and further investigation into whether these factors need to be considered at the point of prescribing is warranted. In light of these findings, future research should examine the predictors of cumulative repeat episodes of BZRA exposure.

General practitioners' compliance with benzodiazepine discontinuation guidelines in patients treated with long-term lorazepam: A case-vignette cross-sectional survey

AIM

To study determinants associated with GPs' compliance with benzodiazepine discontinuation guidelines through a case-vignette of a patient with multimorbidity treated with long-term lorazepam for insomnia.

METHODS

This cross-sectional survey was performed in a sample of French GPs. The questionnaire included items on their characteristics and questions related to the management of a case-vignette with long-term lorazepam use consulting for a prescription renewal. GPs who proposed a dedicated consultation to discuss discontinuation or progressive discontinuation were considered as "following guidelines", while they were considered as "out-of-guidelines" if they proposed immediate discontinuation or decided not to discontinue lorazepam. A backward selection process was used to select factors to be included in the final logistic regression model. The probabilities of out-of-guidelines practice and their 95% confidence interval (95% CI) were then plotted using a heatmap graph.

RESULTS

Of 1,177 GPs, the majority (92.2%) were aware of the necessity to discontinue lorazepam and reported practice consistent with good practice guidelines. Women GPs aged under 50 years had the lowest estimated probability of out-of-guidelines practice. Conversely, men aged over 58 years with high consideration of patient preferences and low concern about the benefit-risk ratio of lorazepam had the highest probability of out-of-guidelines practice (27.3% [18.7%; 34.7%]).

CONCLUSION

GPs largely reported practice compliant with benzodiazepine discontinuation guidelines, although some GPs, mainly older men who overemphasise patient preferences, were more likely to adopt out-of-guidelines practice.

Psychiatric Drug Prescription and Temporal Associations with a First Diagnosis of Gambling Disorder—Results from a National Register Study

Psychiatric comorbidity is common in gambling disorder (GD), but there are few studies on larger nationwide samples of treatment-seeking patients. Also, temporal associations between GD and other psychiatric disorders are often difficult to study. To address the prevalence and the temporal associations of prescriptions for psychiatric disorders — both in specialized care and primary care — in patients with a GD diagnosis (ICD-10 F63.0). Data was derived from national health registers in Sweden. All patients who were diagnosed with GD in specialized health care in 2005–2016 were included and run against the nationwide database on prescription of pharmaceuticals aimed for psychiatric disorders (n = 2018). Prevalence of psychiatric drug prescription was used as a proxy for psychiatric comorbidity and studied for two 2-year periods (period 1 and 2) prior to GD and one 2-year period (period 3) after the diagnosis. Controlling for gender, age, and time periods, for eight drug categories (anti- epileptics, anti-psychotics, benzodiazepine derivatives, anxiolytics, hypnotics, anti- depressants and drugs used in addictive disorders), significant increases in drug prescription were seen. For central stimulants, a significant increase was seen upon receiving the GD diagnosis (from period 2 to 3), and for benzodiazepines, an increase was seen prior to the GD diagnosis (from period 1 to 2), but not upon diagnosis (from period 2 to 3). Psychiatric comorbidity in GD is common. Drug prescription for psychiatric problems increased markedly in the years temporarily associated with a first diagnosis of GD. The findings may call for early screening for problem gambling in patients with treatment contacts for increasingly poor mental health.

Twenty-Year Trends in the Psychopharmacological Treatment of Outpatients with Borderline Personality Disorder: A Cross-Sectional Naturalistic Study in Spain

OBJECTIVE

Although no psychotropic drugs have been officially approved for the treatment of borderline personality disorder (BPD), medications are routinely prescribed for these patients. The primary aim of this study was to evaluate changes in the pharmacological management of patients with BPD treated in an outpatient specific unit in Spain over the past 20 years, while a secondary aim was to identify the factors associated with the prescription.

METHODS

Observational and cross-sectional study of all patients with a primary diagnosis of BPD (n = 620) consecutively admitted to a BPD outpatient program in Barcelona, Spain, from 2001 through 2020. We examined trends in the prescription of antidepressants, benzodiazepines, mood stabilizers, and antipsychotics. For the analysis, prescription data were grouped into four 5-year periods (2001-2005, 2006-2010, 2011-2015, and 2016-2020). Logistic regression models were performed to identify sociodemographic and clinical variables associated with pharmacological prescription and polypharmacy.

RESULTS

The percentage of patients receiving pharmacotherapy decreased over time. Antidepressant prescription rates remained high and stable over time (74% of patients), while benzodiazepine use decreased significantly during the study period (from 77 to 36%) and second-generation antipsychotic (SGA) use increased from 15 to 32%. Psychiatric comorbidity was the main factor associated with pharmacological treatment (odds ratio 2.5, 95% confidence interval 1.5-4.2) and polypharmacy, although a high percentage of patients without comorbidity were also taking medications.

CONCLUSIONS

Over the past 20 years, the pharmacological treatment of BPD outpatients has undergone important changes, most notably the decrease in benzodiazepines and increase in SGAs. The findings of this study demonstrate that pharmacotherapy is much more prevalent in patients with BPD than recommended in most clinical guidelines.

Dependence on hypnotics: a comparative study between chronic users of benzodiazepines and Z-drugs

Objective:

To evaluate dependence among chronic benzodiazepine and Z-drug users in Brazil.

Methods:

Chronic users of benzodiazepines (n=94), Z-drugs (n=74), or both (n=11) were recruited from the community, underwent a psychiatric evaluation and completed self-report instruments on hypnotic dependence, insomnia, anxiety, and depression. Users of benzodiazepines and Z-drugs were compared using t-tests, and logistic regression models were employed to explore significant predictors of a dependence diagnosis.

Results:

There was no difference in the prevalence of dependence among benzodiazepine (77.2%) and Z-drug (69.4%) users. Benzodiazepine users reported increased psychosocial aspects of dependence, anxiety, and depression. Preoccupation with the availability of medication (prevalence ratio [PR] = 2.39 [1.15-5.20]) and insomnia (PR = 1.10 [1.02-1.19]) were associated with a diagnosis of dependence (n=175).

Conclusion:

The prevalence of dependence was similar among both drug classes. The increased self-reported dependence, anxiety, and depression among benzodiazepine users may be due to behavioral rather than pharmacological aspects of medication use. Behaviors related to hypnotic use were important predictors of dependence.

Collaborative Medication Reviews to Identify Inappropriate Prescribing in Pre-Admission Medications at Emergency Department Short-Term Ward

PURPOSE

Collaborative medication reviews (CMR) have been shown to reduce inappropriate prescribing (IP) in various settings. This study aimed at describing a CMR practice in an emergency department (ED) short-term ward in Finland to investigate IP in pre-admission medications.

PATIENTS AND METHODS

Pre-admission medications were collaboratively reviewed for all the adult ED admissions within a 5-month study period in 2016. Types of IP were inductively categorized, and descriptive statistics were used to show the incidence and type of IP events.

RESULTS

The pre-admission medications of 855 adult ED patients were reviewed by the pharmacist, with 113 IP events identified in 83 (9.7%) of the patients. The majority (81%, n=67) of these patients were older adults (≥65 years). Of these 94 IP events identified in 67 older patients, 58 (62%) were confirmed by the ED physicians. The following 3 main categories were inductively developed for the types of identified and confirmed IP events: 1) Misprescribing (prescription of medications that significantly increase the risk of adverse drug events); 2) Overprescribing (prescription of medications for which no clear clinical indications exist); and 3) Underprescribing (omission of potentially beneficial medications that are clinically indicated for treatment or prevention of a disease). Misprescribing was the most common type of IP identified (79% of the identified and 72% confirmed IP events). Benzodiazepines (29%) and antidepressants (28%) were involved in 33 out of 58 (57%) confirmed IP events. Medications with strong anticholinergic effects were involved in 19% of the confirmed IP events.

CONCLUSION

The CMR practice was able to identify IP in pre-admission medications of about one-tenth of ED patients. Older patients using benzodiazepines and drugs with strong anticholinergic effects should be paid special attention to ED admissions.

Factors associated with non-medical use of prescription drugs among individuals with a legitimate prescription for medical purposes: A population-based study

Background:

Psychoactive prescription drugs are known to have abuse potential. This study was aimed at studying the non-medical use of prescription drugs (NMUPD) among individuals with prescriptions for anxiolytics, sedatives, or strong analgesics. We examined the association of socio-demographics, binge drinking, the number of drug prescriptions, and drug types prescribed for medical purposes with NMUPD among the general Finnish population.

Methods:

Data were derived from population-based (ages 15–69 years) Drug Surveys conducted in Finland in 2006, 2010, and 2014. The response rates varied between 48% and 55%. Individuals with prescriptions for one or more prescription drugs in the last 12 months were included (n = 1,602) and divided into three groups: medical use only, NMUPD, and NMUPD with illicit drug use (ILLICIT USE). Multinomial logistic regression was used.

Results:

Among individuals with a prescription for at least one prescription drug, 5.7% reported NMUPD. Living alone and being outside the labour force were associated with NMUPD. Younger age, living in a large city, living alone, and unemployment were associated with ILLICIT USE. Frequent binge drinking and a high number of drug prescriptions were associated with both NMUPD and ILLICIT USE. Those reporting ILLICIT USE were more likely to have a prescription for sedatives.

Conclusions:

Although NMUPD is on a rather low level among those who have a prescription for legitimate purposes, having multiple prescriptions increased the likelihood of NMUPD. Low socio-economic position and binge drinking are associated with NMUPD and this should be taken into account when planning interventions and preventive actions.

Are Older People Aware of Potential Risks Related to Benzodiazepines They are Taking and Has Anything Changed in Risk Awareness Over Ten Years?

PURPOSE

The use of benzodiazepines and related drugs (BZD) is common among older adults although there is growing evidence of their harmful effects. This study investigated how well older people are aware of the potential risks related to the BZD they are taking and whether the risk awareness has changed in the years between 2004 and 2015.

PATIENTS AND METHODS

The data were collected by interviewing BZD using home-dwelling patients aged ≥65 years with normal cognitive function (MMSE ≥20) who were admitted to the hospital within a 1 month study period in the years 2004 and 2015. Patients were asked whether they were aware of the ten main potential risks related to BZD use. A risk awareness score (range 0-10) was assessed for each patient, each known potential risk yielding one point.

RESULTS

The study included 37 patients in 2004 and 31 patients in 2015. In 2004, 6/37 patients (16%), while 16/31 patients (52%) in 2015 had risk awareness scores between 6 and 10. Awareness of dependence (p=0.047), interaction with alcohol (p=0.001), dizziness (p=0.002) and developing tolerance (p=0.002) had improved, while awareness of the other potential risks remained unchanged, muscle weakness being the least known (3/37 in 2004 and 4/31 in 2015 were aware of it as a potential risk). Regular BZD use had declined (p=0.043) but pro re nata (PRN; when required) BZD use had increased (p=0.003) between the years 2004 and 2015.

CONCLUSION

Older BZD users' awareness of some potential risks related to BZD use (dependence, interaction with alcohol, dizziness and developing tolerance) had improved between 2004 and 2015, while awareness of other potential risks remained unchanged.

Psychometric properties of the Benzodiazepine Dependence Self-Report Questionnaire - Portuguese Version (BENDEP-SRQ-PV)

Objective

To assess psychometric properties of the Benzodiazepine Dependence Self-Report Questionnaire – Portuguese Version (BENDEP-SRQ-PV) in a sample of Brazilian chronic hypnotic users.

Methods

One hundred and seventy-nine chronic hypnotic users (benzodiazepines and Z-drugs) were recruited, attended a psychiatric evaluation, and answered the BENDEP-SRQ-PV. Factor structure, reliability, and influence of covariates (dependence diagnosis and type of drug consumed) were assessed in a structural equation modelling environment. Discrimination was assessed with receiver operating characteristic (ROC) plots and stability with the test-retest method.

Results

Participants, mostly women (91.6%), aged 51 to 64 years old, had been using hypnotics for an average of 34.8 months, with a mean defined daily dose of 0.72. Psychometric analysis demonstrated construct and criterion validity, reliability, and response stability. The factor structure was maintained as originally proposed: problematic use (ω = 0.73), preoccupation (ω = 0.74), lack of compliance (ω = 0.74), and withdrawal (ω = 0.93).

Conclusion

The BENDEP-SRQ-PV is an adequate measure of hypnotic dependence in the Brazilian population of chronic users. Our results support using the scale for follow-up in clinical and research applications and in correlational studies.

Incidence of and Characteristics Associated With Long-term Benzodiazepine Use in Finland

IMPORTANCE

The proportion of patients who develop long-term benzodiazepine use remains controversial, as do the length of time before long-term use develops and the factors associated with long-term use.

OBJECTIVE

To investigate the incidence of long-term benzodiazepine and related drug (BZDR) use and factors associated with the development of long-term use implementing a follow-up design with new BZDR users.

DESIGN, SETTING, AND PARTICIPANTS

This population-based cohort study used a nationwide cohort of 129 732 new BZDR users in Finland. New users of BZDRs aged 18 years or older were identified from the prescription register maintained by the Social Insurance Institution of Finland as individuals who initiated BZDR use during 2006 and had not used BZDRs from 2004 to 2005. The follow-up continued until death, long-term hospitalization, a gap of 2 years in BZDR use, or December 31, 2015. The population was analyzed according to age at treatment initiation, categorized into younger (<65 years) and older (≥65 years) subcohorts. Analyses were conducted from May 2019 to February 2020.

EXPOSURES

Use of BZDRs, modeled from register-based data using the PRE2DUP (from prescriptions to drug use periods) method.

MAIN OUTCOMES AND MEASURES

Long-term BZDR use, defined as continuous use of 180 days or longer, and factors associated with long-term vs short-term use, compared using Cox proportional hazards models.

RESULTS

Among the 129 732 incident BZDR users, the mean (SD) age was 52.6 (17.7) years, and 78 017 (60.1%) individuals were women. During the follow-up period, 51 099 BZDR users (39.4%) became long-term users. Long-term treatment was more common in the older subcohort (19 103 individuals [54.5%]) than the younger subcohort (31 996 individuals [33.8%]). At 6 months, 28 586 individuals (22.0%) had become long-term users: 11 805 (33.7%) in the older subcohort and 16 781 (17.7%) in the younger subcohort. The largest proportions of initiators who became long-term users were those persons who initiated treatment with nitrazepam (76.4%; 95% CI, 73.6%-79.1%), temazepam (63.9%; 95% CI, 62.9%-65.0%), lorazepam (62.4%; 95% CI, 59.7%-65.1%), or clonazepam (57.5%; 95% CI, 55.9%-59.2%). Factors associated with the development of long-term use included male sex, older age, receipt of social benefits, psychiatric comorbidities, and substance abuse.

CONCLUSIONS AND RELEVANCE

The findings of this population-based cohort study conducted in Finland suggest that the incidence of subsequent long-term BZDR use in individuals who initiate use of BZDRs is high, especially among older persons, and that the specific BZDR used initially is associated with the development of long-term BZDR use and should be carefully considered when prescribing BZDRs. The observed factors that appear to be associated with development of long-term BZDR use also should be considered in clinical decision-making when starting and monitoring BZDR treatment.

Trends in the consumption rates of benzodiazepines and benzodiazepine-related drugs in the health region of Lleida from 2002 to 2015

Background

The high prevalence and long-term use of benzodiazepines (BZDs) treatment are debated topics because of the risk they can cause to the patients. Despite the current information on the risk-benefit balance of these drugs, their consumption remains particularly high. We determined the trend in the consumption prevalence of benzodiazepines (BZDs) and drugs related to BZDs (Z-drugs) in the population of the Health Region of Lleida to explore patterns of use and the associated characteristics associated between 2002 and 2015.

Methods

An analysis of secular trends was carried out between 2002 and 2015; the databased included all individuals from the Health Region of Lleida, which had 358,157 inhabitants in 2015, that consumed BZDs. The consumption of BZDs was evaluated using prescription billing data from the Public Health System. All types of BZDs and BZD analogues that had been approved by the drug agency were included. Trends by age and sex were investigated.

Results

Over the whole study period, a total of 161,125 individuals accounted for 338,148 dispensations. Overall, 59% were women, and the mean age was 56 years. The dispensing prevalence of BZDs use in 2015 was 14.2% overall —18.8% in women and 9.6% in men—and was 36% in those over 65 years. According to the half-life of BZDs, the prevalence of short-intermediate BZD use, intermediate-long BZD use, and Z-drugs use was 9.7, 5.5 and 0.8%, respectively. The evolution of the annual prevalence of BZD dispensing showed a progressive decline, from 15.3% in 2002 to 14.2% in 2015, which was attributed to a decrease in the consumption of intermediate-long half-life BZDs (8.0% vs. 5.5%) and Z-drugs (1.4% vs. 0.8%).

Conclusion

The dispensing prevalence of BZDs and Z-drugs was high, although a small reduction was observed during this time period. The dispensing prevalence was especially high in the population over 65, despite the risk of cognitive decline and falls. Integral actions are required to lower the BZD prescription rate.

Association between benzodiazepine use and development of dementia

OBJECTIVE

To evaluate the association between use of benzodiazepines and incident dementia.

METHODS

Analytical prospective nested case-control study for which the Spanish database for pharmacoepidemiological research in primary care (BIFAP) of the Spanish Agency of Medicines and Medical Devices (AEMPS) was used. A total of 15,212 subjects diagnosed with dementia of the Alzheimer type and 62,397 controls were identified. Exposure was retrieved retrospectively with a 3-year lag time before the index date. Adjusted odd ratios (OR) were calculated.

RESULTS

Benzodiazepines use increased the risk of suffering Alzheimer's disease (OR=1.05, 95% CI, 1.01-1.10). No statistical differences were shown between short-acting and long-acting drugs. The risk is more evident with longer exposure times.

CONCLUSIONS

There seems to be a weak association between benzodiazepine use and the development of dementia, the risk increases with greater exposure.

Potentially inappropriate benzodiazepine use in Australian adults: A population-based study (2014-2017)

INTRODUCTION AND AIMS

Inappropriate benzodiazepine use continues to cause substantial morbidity and mortality globally. We aimed to characterise the initiation of new benzodiazepine treatment episodes in Australia and identify correlates of potentially inappropriate benzodiazepine use.

DESIGN AND METHODS

We conducted a population-based cohort study using dispensing claims from a 10% sample of Pharmaceutical Benefit Scheme eligible Australians (2014-2017). Our cohort comprised adults initiating a new benzodiazepine treatment; we defined potentially inappropriate use as ≥3 benzodiazepine dispensing over any continuous 90-day period in the year following initiation. We examined characteristics associated with potentially inappropriate benzodiazepine use using multivariable logistic regression.

RESULTS

People initiating a new benzodiazepine treatment episode (n = 276 765) were more frequently female (59.1%) and <65 years of age (73.6%). In the 90 days prior to initiating benzodiazepine, people were commonly dispensed antidepressants (26.5%), opioid analgesics (17.6%) and antipsychotics (4.7%). In the first year after initiation, 20 938 (9.5%) people experienced 'potentially inappropriate use'. Having a greater initial quantity of benzodiazepine dispensed [odds ratio (OR), 1.10; 95% confidence interval (CI) 1.08-1.12 per 10 defined daily doses increase], dispensing of antipsychotics (OR 3.00, 95% CI 2.86-3.15) and >5 unique medicines (OR 2.54, 95% CI 2.44-2.64; vs. ≤5 unique medicines) in the 90 days prior to initiation were associated with potentially inappropriate benzodiazepine use.

DISCUSSION AND CONCLUSIONS

Approximately, 1 in 10 people who initiated benzodiazepines were using it beyond the guideline recommended period. We identified factors at the time of initiation associated with potentially inappropriate use; clinicians should consider these before prescribing benzodiazepines and initiate conversations about alternative therapy when necessary.

One-year persistence of potentially inappropriate medication use in older adults: A population-based study

AIMS

To assess the 1-year persistence of potentially inappropriate medication (PIM) use and identify associated factors in community-dwelling older adults in Quebec, Canada.

METHODS

A population-based cohort study was conducted using the Quebec Integrated Chronic Disease Surveillance System. Individuals insured by the public drug plan and aged ≥66 years who initiated a PIM between 1 April 2014 and 31 March 2015 were followed-up for 1 year. PIMs were identified using the 2015 Beers criteria. One-year persistence of PIM use was defined as continuous treatment with any PIM, without interruption for more than 60 days between prescriptions refills. Poisson regression models were performed to identify factors associated with 1-year persistence of any PIM.

RESULTS

In total, 25.1% of PIM initiators were persistent at 1 year. In non-persistent individuals, the median time to PIM discontinuation was 31 days (interquartile range 21-92). Individuals were more persistent at 1 year with antipsychotics (43.9%), long-duration sulphonylureas (40.2%), antiarrhythmics/immediate-release nifedipine (36.5%) and proton pump inhibitors (36.0%). Factors significantly associated with persistence were an increased age, being a man and having a high number of medications and chronic diseases, especially dementia, diabetes and cardiovascular diseases.

CONCLUSIONS

One-quarter of community-dwelling older adults are continuously exposed to PIMs. To optimize medication prescribing in the older population, further interventions are needed to limit the use of PIMs most likely to be continued, especially in individuals most at risk of being persistent and also particularly vulnerable to adverse events.

Enhanced coordination of care to reduce medication risks in older home care clients in primary care: a randomized controlled trial

BACKGROUND

As populations are aging, a growing number of home care clients are frail and use multiple, complex medications. Combined with the lack of coordination of care this may pose uncontrolled polypharmacy and potential patient safety risks. The aim of this study was to assess the impact of a care coordination intervention on medication risks identified in drug regimens of older home care clients over a one-year period.

METHODS

Two-arm, parallel, cluster randomized controlled trial with baseline and follow-up assessment at 12 months. The study was conducted in Primary Care in Lohja, Finland: all 5 home care units, the public healthcare center, and a private community pharmacy.

PARTICIPANTS

All consented home care clients aged > 65 years, using at least one prescription medicine who were assessed at baseline and at 12 months.

INTERVENTION

Practical nurses were trained to make the preliminary medication risk assessment during home visits and report findings to the coordinating pharmacist. The coordinating pharmacist prepared the cases for the triage meeting with the physician and home care nurse to decide on further actions. Each patient's physician made the final decisions on medication changes needed. Outcomes were measured as changes in medication risks: use of potentially inappropriate medications and psychotropics; anticholinergic and serotonergic load; drug-drug interactions.

RESULTS

Participants (n = 129) characteristics: mean age 82.8 years, female 69.8%, mean number of prescription medicines in use 13.1. The intervention did not show an impact on the medication risks between the original intervention group and the control group in the intention to treat analysis, but the per protocol analysis indicated tendency for effectiveness, particularly in optimizing central nervous system medication use. Half (50.0%) of the participants with a potential need for medication changes, agreed on in the triage meeting, had none of the medication changes actually implemented.

CONCLUSION

The care coordination intervention used in this study indicated tendency for effectiveness when implemented as planned. Even though the outcome of the intervention was not optimal, the value of this paper is in discussing the real world experiences and challenges of implementing new practices in home care.

TRIAL REGISTRATION

ClinicalTrials.gov (NCT02545257). Registered September 9 2015.

Benzodiazepine Use Is Associated With Poorer Spinal Cord Stimulation Outcome in 373 Neuropathic Pain Patients

OBJECTIVES

The aim of the study is to investigate whether benzodiazepine use differs between patients with favorable and unfavorable spinal cord stimulation (SCS) treatment outcome. We hypothesize that the patients with unfavorable SCS outcome would exhibit a higher level of benzodiazepine use.

MATERIALS AND METHODS

Using a case-control study setting, we examined benzodiazepine use in SCS patients and in matched population controls as a potential risk factor poor SCS outcome. A total of 373 consecutive SCS patients treated in Kuopio University Hospital between 1997 and 2014 and their 1117 matched population controls were followed until patient death or the end of March 2016.

RESULTS

Benzodiazepines were used during the 24-month period before or after SCS implantation by 42.3% of the SCS patients who had the device explanted, 39.5% who had an unsuccessful trial stimulation, 28.0% who still had the device at the end of the follow-up period, and 8.0% of the controls. Diazepam use before SCS increased the odds for explanting of SCS by 2.4-fold (95% Cl: 1.0-5.4). Starting clonazepam use after SCS was associated with a 5.2-fold (95% CI: 1.5-18.9) increase in the odds of unsuccessful trial stimulation.

CONCLUSION

The benzodiazepine use in patients with poor SCS outcome illustrates the role of anxiety in SCS outcomes and the need for multidisciplinary treatment of pain.

Behavioural effects of psychoactive pharmaceutical exposure on European perch (Perca fluviatilis) in a multi-stressor environment

With the ability to resist biodegradation and exert therapeutic effects at low concentrations, pharmaceutical contaminants have become environmental stressors for wildlife. One such contaminant is the anxiolytic oxazepam, a psychoactive pharmaceutical that is frequently detected in surface waters globally. Despite growing interest in understanding how wildlife respond to anxiolytics, synergistic effects of pharmaceuticals and other abiotic (e.g. temperature) and biotic (e.g. predation risk) stressors remain unclear. Here, using a multi-stressor approach, we investigated effects of 7-day oxazepam exposure (6.5 μg/L) on anxiety-related behaviours in juvenile European perch (Perca fluviatilis). The multi-stressor approach was achieved by exposing perch to oxazepam at two temperatures (10 °C and 18 °C), and at two predation risk regimes-generated using chemical cues from the northern pike (Esox lucius). Our exposures resulted in a successful uptake of the drug from the water, i.e., oxazepam was measured in perch muscle tissue at 50 ± 17 ng/g (mean ± SD). We found significant oxazepam-induced effects on boldness, with 76.7% of the treated fish entering the white background (i.e. 'exposed' area where exposure to presumed risks are higher) within the first 5 min, compared to 66.6% of the control fish. We also found a significant effect of temperature on total time spent freezing (i.e. staying motionless). Specifically, fish in the low temperature treatments (oxazepam, predation) froze for longer than fish in high temperatures. Our multi-stressor study is the first to uncover how anxiety-related behaviours in wild juvenile fish are altered by changes in water temperature and perceived predation risk. Importantly, our findings highlight the need to focus on multiple stressors to improve understanding of how organisms not only survive, but adapt to, human-induced environmental change.

[Use and misuse of benzodiazepines out of France]

Among 8 countries included in the report of ANSM, France is second behind Spain, when defined daily doses (DDD) are considered. Few studies, recent and based on representative samples of population, investigated the use of benzodiazepines in other countries and data are limited to compare France and other countries. In most countries, the use of benzodiazepines increases with age and is more frequent in women than in men. Variations of benzodiazepines use that were observed in other countries are similar to those observed in France, with a slight decrease but persistent high levels of use. In most countries, the long-term use of benzodiazepines is stable over time even though simple use decreases.