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Arcadepani FB, Fidalgo TM. Substance use among older adults: a review of the literature. J Addict Dis 2023; 41:289-299. [PMID: 36377720 DOI: 10.1080/10550887.2022.2109923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To explore studies that have examined the effectiveness of possible interventions to reduce the substance use among older adults. METHODS From the search, 295 abstracts were identified and 200 were excluded. Ninety-five remaining articles were reviewed, and 90 were excluded after full text review. Nine articles were included after reviewing bibliographic references on the topic. A total of 14 articles, which all met the inclusion criteria, were considered in the review. RESULTS All 14 studies found that pharmacological and non-pharmacological interventions can reduce substance use (alcohol, cocaine, nicotine and benzodiazepines) among older adults (mean age 45 years or older). CONCLUSIONS There are promising possibly pharmacological and non-pharmacological interventions that can be used to reduce substance use among older adults. In addition, other studies are needed to expand the therapeutic arsenal in this population.
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Affiliation(s)
- Felipe B Arcadepani
- Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Thiago M Fidalgo
- Departamento de Psiquiatria, Universidade Federal de São Paulo, São Paulo, Brazil
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Edinoff AN, Nix CA, Odisho AS, Babin CP, Derouen AG, Lutfallah SC, Cornett EM, Murnane KS, Kaye AM, Kaye AD. Novel Designer Benzodiazepines: Comprehensive Review of Evolving Clinical and Adverse Effects. Neurol Int 2022; 14:648-663. [PMID: 35997362 PMCID: PMC9397074 DOI: 10.3390/neurolint14030053] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/16/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022] Open
Abstract
As tranquilizers, benzodiazepines have a wide range of clinical uses. Recently, there has been a significant rise in the number of novel psychoactive substances, including designer benzodiazepines. Flubromazolam(8-bromo-6-(2-fluorophenyl)-1-methyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazeZpine) is a triazolo-analogue of flubromazepam. The most common effects noted by recreational users include heavy hypnosis and sedation, long-lasting amnesia, and rapid development of tolerance. Other effects included anxiolysis, muscle-relaxing effects, euphoria, loss of control, and severe withdrawals. Clonazolam, or 6-(2-chlorophenyl)-1-methyl-8-nitro-4H-[1,2,4]triazolo[4,3-α]-[1,4]-benzodiazepine, is a triazolo-analog of clonazepam. It is reported to be over twice as potent as alprazolam. Deschloroetizolam (2-Ethyl-9-methyl-4-phenyl-6H-thieno[3,2-f][1,2,4]triazolo[4,3-a][1,4]diazepine) is part of the thienodiazepine drug class, which, like benzodiazepines, stimulates GABA-A receptors. Meclonazepam ((3S)-5-(2-chlorophenyl)-3-methyl-7-nitro-1,3-dihydro-1,4-benzodiazepin-2-one) is a designer benzodiazepine with additional anti-parasitic effects. Although it has proven to be an efficacious therapy for schistosomiasis, its sedative side effects have prevented it from being marketed as a therapeutic agent. The use of DBZs has been a subject of multiple recent clinical studies, likely related to increasing presence and availability on the internet drug market and lack of regulation. Many studies have aimed to identify the prevalence of DBZs and their effects on those using them. This review discussed these designer benzodiazepines and the dangers and adverse effects that the clinician should know.
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Affiliation(s)
- Amber N. Edinoff
- Department of Psychiatry, Massachusetts General Hospital, Harvard School of Medicine, Boston, MA 02114, USA
- Department of Psychiatry and Behavioral Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA
- Louisiana Addiction Research Center, Shreveport, LA 71103, USA
- Correspondence: ; Tel.: +1-(617)-726-2000
| | - Catherine A. Nix
- Department of Psychiatry and Behavioral Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA
- Louisiana Addiction Research Center, Shreveport, LA 71103, USA
| | - Amira S. Odisho
- Department of Psychiatry and Behavioral Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA
| | - Caroline P. Babin
- School of Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA
| | - Alyssa G. Derouen
- School of Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA
| | - Salim C. Lutfallah
- School of Medicine, Louisiana State University New Orleans, New Orleans, LA 70112, USA
| | - Elyse M. Cornett
- Department of Anesthesiology, Louisiana State University Shreveport, Shreveport, LA 71103, USA
| | - Kevin S. Murnane
- Department of Psychiatry, Massachusetts General Hospital, Harvard School of Medicine, Boston, MA 02114, USA
- Louisiana Addiction Research Center, Shreveport, LA 71103, USA
- Department of Pharmacology, Toxicology & Neuroscience, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA
| | - Adam M. Kaye
- Thomas J. Long School of Pharmacy and Health Sciences, Department of Pharmacy Practice, University of the Pacific, Stockton, CA 95211, USA
| | - Alan D. Kaye
- Department of Psychiatry and Behavioral Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA
- Department of Anesthesiology, Louisiana State University Shreveport, Shreveport, LA 71103, USA
- Department of Pharmacology, Toxicology & Neuroscience, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA
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Peng L, Lawrence D, Levander XA. Challenges of Diagnosing and Managing Designer Benzodiazepine Dependence and Withdrawal: A Case Report. J Addict Med 2022; 16:249-251. [PMID: 34001772 DOI: 10.1097/adm.0000000000000869] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Over the last 10 years, an increasing number of unregulated novel psychoactive substances, including "designer benzodiazepines" (DBZDs), have emerged on the recreational drug market. Despite the rapidly increasing usage of DBZDs, there is a significant lack of information regarding clinical management. Here we present a case illustrating the difficulties of diagnosing and managing DBZD related sedative-hypnotic use disorder. CASE PRESENTATION Our patient is a 30-year-old man with severe opioid and sedative-hypnotic use disorders. He had a 10-year history of using heroin, clonazolam, and alprazolam. He stopped using heroin when on methadone maintenance therapy but continued using clonazolam and nonprescribed alprazolam. His opioid treatment program discontinued methadone due to benzodiazepine intoxication, and he returned to heroin use. He then presented for residential withdrawal management where he underwent successful buprenorphine induction and benzodiazepine withdrawal management. During a 3-month period of benzodiazepine abstinence, he struggled with ongoing cravings and post-acute withdrawal syndrome, ultimately leading to return to DBZD use. DISCUSSION Despite the increasing prevalence of DBZD use, the usage of DBZDs is likely under-recognized because these compounds are generally not included on standard in-office urine drug immunoassay tests. Initial studies suggest that DBZDs have high potencies, shorter half-lives, are more addictive, and can result in more severe withdrawal symptoms compared to known benzodiazepines. However, there remains a lack of information about the pharmacokinetics and pharmacodynamics of DBZDs, making clinical management for DBZD related sedative-hypnotic use disorders challenging to treat.
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Affiliation(s)
- Linda Peng
- Department of Medicine, Division of General Internal Medicine and Geriatrics, Section of Addiction Medicine, Oregon Health & Science University, Portland, OR (LP, DL, XAL); Hooper Detoxification and Stabilization Center, Central City Concern, Portland, OR (DL)
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Edinoff AN, Nix CA, Hollier J, Sagrera CE, Delacroix BM, Abubakar T, Cornett EM, Kaye AM, Kaye AD. Benzodiazepines: Uses, Dangers, and Clinical Considerations. Neurol Int 2021; 13:594-607. [PMID: 34842811 PMCID: PMC8629021 DOI: 10.3390/neurolint13040059] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 11/16/2022] Open
Abstract
Benzodiazepines (BZDs) are among one of the most widely prescribed drug classes in the United States. BZDs are a class of psychoactive drugs known for their depressant effect on the central nervous system (CNS). They quickly diffuse through the blood-brain barrier to affect the inhibitory neurotransmitter GABA and exert sedative effects. Related to their rapid onset and immediate symptom relief, BZDs are used for those struggling with sleep, anxiety, spasticity due to CNS pathology, muscle relaxation, and epilepsy. One of the debilitating side effects of BZDs is their addictive potential. The dependence on BZDs generally leads to withdrawal symptoms, requiring careful tapering of the medication when prescribed. Regular use of BZDs has been shown to cause severe, harmful psychological and physical dependence, leading to withdrawal symptoms similar to that of alcohol withdrawal. Some of these withdrawal symptoms can be life threatening. The current treatment for withdrawal is through tapering with clonazepam. Many drugs have been tested as a treatment for withdrawal, with few proving efficacious in randomized control trials. Future research is warranted for further exploration into alternative methods of treating BZD withdrawal. This call to action proves especially relevant, as those seeking treatment for BZD dependence and withdrawal are on the rise in the United States.
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Affiliation(s)
- Amber N. Edinoff
- Department of Psychiatry and Behavioral Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA; (C.A.N.); (J.H.)
- Correspondence: ; Tel.: +1-(318)-675-8969
| | - Catherine A. Nix
- Department of Psychiatry and Behavioral Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA; (C.A.N.); (J.H.)
| | - Janice Hollier
- Department of Psychiatry and Behavioral Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA; (C.A.N.); (J.H.)
| | - Caroline E. Sagrera
- School of Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA; (C.E.S.); (B.M.D.); (T.A.)
| | - Blake M. Delacroix
- School of Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA; (C.E.S.); (B.M.D.); (T.A.)
| | - Tunde Abubakar
- School of Medicine, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA; (C.E.S.); (B.M.D.); (T.A.)
| | - Elyse M. Cornett
- Department of Anesthesiology, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA; (E.M.C.); (A.D.K.)
| | - Adam M. Kaye
- Department of Pharmacy Practice, Thomas J. Long School of Pharmacy and Health Sciences, University of the Pacific, Stockton, CA 95211, USA;
| | - Alan D. Kaye
- Department of Anesthesiology, Louisiana State University Health Shreveport, Shreveport, LA 71103, USA; (E.M.C.); (A.D.K.)
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Cognitive Behavioral Therapy and Acceptance and Commitment Therapy for the Discontinuation of Long-Term Benzodiazepine Use in Insomnia and Anxiety Disorders. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph181910222. [PMID: 34639523 PMCID: PMC8508349 DOI: 10.3390/ijerph181910222] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/15/2021] [Accepted: 09/23/2021] [Indexed: 01/23/2023]
Abstract
Benzodiazepines have proven to be highly effective for treating insomnia and anxiety. Although considered safe when taken for a short period of time, a major risk–benefit dilemma arises in the context of long-term use, relating to addiction, withdrawal symptoms, and potential side effects. For these reasons, benzodiazepines are not recommended for treating chronic sleep disorders, anxiety disorders, nor for people over the age of 65, and withdrawal among long-term users is a public health issue. Indeed, only 5% of patients manage to discontinue using these drugs on their own. Even with the help of a general practitioner, this rate does not exceed 25 to 30% of patients, of which approximately 7% manage to remain drug-free in the long term. Cognitive Behavioral Therapies (CBT) offer a crucial solution to this problem, having been shown to increase abstinence success to 70–80%. This article examines traditional and novel CBT techniques in this regard, such as Acceptance and Commitment Therapy, which address both the underlying condition (insomnia/anxiety) and the substance-related disorder. The theoretical framework and evidence supporting the use of these approaches are reviewed. Finally, current research gaps are discussed, and key research perspectives are proposed.
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Basińska-Szafrańska A. Metabolic diversity as a reason for unsuccessful detoxification from benzodiazepines: the rationale for serum BZD concentration monitoring. Eur J Clin Pharmacol 2021; 77:795-808. [PMID: 33388822 DOI: 10.1007/s00228-020-03048-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 11/17/2020] [Indexed: 11/26/2022]
Abstract
PURPOSE Many harms secondary to benzodiazepine (BZD) dependence force users towards detoxification treatment. However, even strongly motivated patients tolerate the process badly or experience early relapse. The detoxification procedure has not yet been standardized. The objective of this paper is to examine the hypothesis that faulty detoxification routines may have caused some failures. METHODS The detoxification approaches found in the literature were compared stage by stage. The review was used to identify possible common, across-the-board systematic errors. RESULTS The presented literature review confirms that the widespread divergence in the BZD metabolism rate is effectively neglected during detoxification routines. Without laboratory measurements, these differences, additionally interfered with by auxiliary drugs, undermine not only the scheduled but even the symptom-driven procedures. An initial substitution with a long-acting BZD, although recommended, may lead to over-accumulation. This excess, varying between patients and incompatible with the current tapering stage, may lead to repeated overestimation of the patient's adjustments to reduced doses. Consequently, the patient's good clinical presentation at withdrawal, resulting in a conclusion of detoxification, may actually reflect a persistently high serum BZD concentration. The low-concentration stage, if shifted past the end of treatment, exposes patients to unexpected, unassisted withdrawal crises. With laboratory feedback, these crises, unlike the symptoms related to deficient re-adaptation mechanisms, could be prevented. Moreover, by minimizing the high-concentration phase, time can be saved for properly assisted low-concentration challenges. CONCLUSION A customized detoxification procedure driven not only by the intensity of withdrawal symptoms but also by serum BZD monitoring may prevent some failures. As the standard regimen, it would make detoxification from BZDs more reliable and effective.
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Del Giorno R, Greco A, Zasa A, Clivio L, Pironi M, Ceschi A, Gabutti L. Combining prescription monitoring, benchmarking, and educational interventions to reduce benzodiazepine prescriptions among internal medicine inpatients; a multicenter before and after study in a network of Swiss Public Hospitals. Postgrad Med 2018; 130:627-636. [DOI: 10.1080/00325481.2018.1504594] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Rosaria Del Giorno
- Department of Internal Medicine and Nephrology, Regional Hospital of Bellinzona and Valli, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Angela Greco
- Quality and Patient Safety Service, La Carità Hospital, Ente Ospedaliero Cantonale, Locarno, Switzerland
| | - Anna Zasa
- Quality and Patient Safety Service, La Carità Hospital, Ente Ospedaliero Cantonale, Locarno, Switzerland
| | - Luca Clivio
- Department of Informatics, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Michela Pironi
- Central Pharmacy Service, Institute of Pharmacological Sciences of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Alessandro Ceschi
- Division of Clinical Pharmacology and Toxicology, Institute of Pharmacological Sciences of Southern Switzerland, Ente Ospedaliero Cantonale, Lugano, Switzerland
- Department of Clinical Pharmacology and Toxicology, University Hospital Zurich, Zurich, Switzerland
| | - Luca Gabutti
- Department of Internal Medicine and Nephrology, Regional Hospital of Bellinzona and Valli, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
- Institute of Biomedicine, University of Southern Switzerland, Lugano, Switzerland
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Welsh JW, Tretyak V, McHugh RK, Weiss RD, Bogunovic O. Review: Adjunctive pharmacologic approaches for benzodiazepine tapers. Drug Alcohol Depend 2018; 189:96-107. [PMID: 29906718 DOI: 10.1016/j.drugalcdep.2018.04.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 04/13/2018] [Accepted: 04/16/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND Many patients require discontinuation of benzodiazepines due to a reduction in drug efficacy over time, the development of a sedative use disorder, or unwanted side effects. Benzodiazepine discontinuation can pose a significant challenge for prescribing clinicians due to potential withdrawal symptoms and a recurrence of psychiatric complaints. METHODS A PubMed literature search was conducted using the medical subject heading of benzodiazepines in combination with the following key words: discontinuation, withdrawal, detoxification, cessation, dependence, addiction, substance use disorders, or long term. Twenty-one studies met the search criteria. RESULTS Few medications facilitated the successful discontinuation of benzodiazepines or relief from benzodiazepine withdrawal symptoms. CONCLUSIONS Studies were heterogeneous with respect to sample selection, sample size, and outcome measures. Medications targeting insomnia yielded mixed results. Similarly, studies of agents targeting anxiety symptoms demonstrated inconsistent findings in the reduction of anxiety, improvement in withdrawal symptoms, or enhancement of benzodiazepine completion rates. Anticonvulsants have supporting evidence from small case reports; carbamazepine shows some potential in assisting taper completion and reducing withdrawal severity. These conclusions should be considered in light of a number of inconsistencies across studies in the literature. The results of this review article highlight the need for additional research on optimal strategies for facilitating successful benzodiazepine tapers.
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Affiliation(s)
- Justine W Welsh
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, 12 Executive Park Dr. NE, Suite 200, Atlanta, GA 30329, USA.
| | - Valeria Tretyak
- Department of Psychology, University of Texas at Austin, 108 E Dean Keeton St, Austin, TX 78712, USA
| | - R Kathryn McHugh
- Division of Alcohol and Drug Abuse, McLean Hospital, Harvard Medical School, 115 Mill St, Belmont, MA 02478, USA
| | - Roger D Weiss
- Division of Alcohol and Drug Abuse, McLean Hospital, Harvard Medical School, 115 Mill St, Belmont, MA 02478, USA
| | - Olivera Bogunovic
- Division of Alcohol and Drug Abuse, McLean Hospital, Harvard Medical School, 115 Mill St, Belmont, MA 02478, USA
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Fluyau D, Revadigar N, Manobianco BE. Challenges of the pharmacological management of benzodiazepine withdrawal, dependence, and discontinuation. Ther Adv Psychopharmacol 2018; 8:147-168. [PMID: 29713452 PMCID: PMC5896864 DOI: 10.1177/2045125317753340] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 11/23/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Benzodiazepines (BZDs) are among the most prescribed sedative hypnotics and among the most misused and abused medications by patients, in parallel with opioids. It is estimated that more than 100 million Benzodiazepine (BZD) prescriptions were written in the United States in 2009. While medically useful, BZDs are potentially dangerous. The co-occurring abuse of opioids and BZD, as well as increases in BZD abuse, tolerance, dependence, and short- and long-term side effects, have prompted a worldwide discussion about the challenging aspects of medically managing the discontinuation of BZDs. Abrupt cessation can cause death. This paper addresses the challenges of medications suggested for the management of BZD discontinuation, their efficacy, the risks of abuse and associated medical complications. The focus of this review is on the challenges of several medications suggested for the management of BZD discontinuation, their efficacy, the risks of abuse, and associated medical complications. METHODS An electronic search was performed of Medline, Worldwide Science, Directory of Open Access Journals, Embase, Cochrane Library, Google Scholar, PubMed Central, and PubMed from 1990 to 2017. The review includes double-blind, placebo-controlled studies for the most part, open-label pilot studies, and animal studies, in addition to observational research. We expand the search to review articles, naturalistic studies, and to a lesser extent, letters to the editor/case reports. We exclude abstract and poster presentations, books, and book chapters. RESULTS The efficacy of these medications is not robust. While some of these medicines are relatively safe to use, some of them have a narrow therapeutic index, with severe, life-threatening side effects. Randomized studies have been limited. There is a paucity of comparative research. The review has several limitations. The quality of the documents varies according to whether they are randomized studies, nonrandomized studies, naturalistic studies, pilot studies, letters to the editors, or case reports. CONCLUSIONS The use of medications for the discontinuation of BZDs seems appropriate. It is a challenge that requires further investigation through randomized clinical trials to maximize efficacy and to minimize additional risks and side effects.
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Affiliation(s)
- Dimy Fluyau
- Emory University School of Medicine, 1648 Pierce Dr NE, Atlanta, GA 30307, USA
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Baandrup L, Ebdrup BH, Rasmussen JØ, Lindschou J, Gluud C, Glenthøj BY. Pharmacological interventions for benzodiazepine discontinuation in chronic benzodiazepine users. Cochrane Database Syst Rev 2018; 3:CD011481. [PMID: 29543325 PMCID: PMC6513394 DOI: 10.1002/14651858.cd011481.pub2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Prolonged treatment with benzodiazepines is common practice despite clinical recommendations of short-term use. Benzodiazepines are used by approximately 4% of the general population, with increased prevalence in psychiatric populations and the elderly. After long-term use it is often difficult to discontinue benzodiazepines due to psychological and physiological dependence. This review investigated if pharmacological interventions can facilitate benzodiazepine tapering. OBJECTIVES To assess the benefits and harms of pharmacological interventions to facilitate discontinuation of chronic benzodiazepine use. SEARCH METHODS We searched the following electronic databases up to October 2017: Cochrane Drugs and Alcohol Group's Specialised Register of Trials, CENTRAL, PubMed, Embase, CINAHL, and ISI Web of Science. We also searched ClinicalTrials.gov, the WHO ICTRP, and ISRCTN registry, and checked the reference lists of included studies for further references to relevant randomised controlled trials. SELECTION CRITERIA We included randomised controlled trials comparing pharmacological treatment versus placebo or no intervention or versus another pharmacological intervention in adults who had been treated with benzodiazepines for at least two months and/or fulfilled criteria for benzodiazepine dependence (any criteria). DATA COLLECTION AND ANALYSIS We used standard methodological procedures expected by Cochrane. MAIN RESULTS We included 38 trials (involving 2543 participants), but we could only extract data from 35 trials with 2295 participants. Many different interventions were studied, and no single intervention was assessed in more than four trials. We extracted data on 18 different comparisons. The risk of bias was high in all trials but one. Trial Sequential Analysis showed imprecision for all comparisons.For benzodiazepine discontinuation, we found a potential benefit of valproate at end of intervention (1 study, 27 participants; risk ratio (RR) 2.55, 95% confidence interval (CI) 1.08 to 6.03; very low-quality evidence) and of tricyclic antidepressants at longest follow-up (1 study, 47 participants; RR 2.20, 95% CI 1.27 to 3.82; low-quality evidence).We found potentially positive effects on benzodiazepine withdrawal symptoms of pregabalin (1 study, 106 participants; mean difference (MD) -3.10 points, 95% CI -3.51 to -2.69; very low-quality evidence), captodiame (1 study, 81 participants; MD -1.00 points, 95% CI -1.13 to -0.87; very low-quality evidence), paroxetine (2 studies, 99 participants; MD -3.57 points, 95% CI -5.34 to -1.80; very low-quality evidence), tricyclic antidepressants (1 study, 38 participants; MD -19.78 points, 95% CI -20.25 to -19.31; very low-quality evidence), and flumazenil (3 studies, 58 participants; standardised mean difference -0.95, 95% CI -1.71 to -0.19; very low-quality evidence) at end of intervention. However, the positive effect of paroxetine on benzodiazepine withdrawal symptoms did not persist until longest follow-up (1 study, 54 participants; MD -0.13 points, 95% CI -4.03 to 3.77; very low-quality evidence).The following pharmacological interventions reduced symptoms of anxiety at end of intervention: carbamazepine (1 study, 36 participants; MD -6.00 points, 95% CI -9.58 to -2.42; very low-quality evidence), pregabalin (1 study, 106 participants; MD -4.80 points, 95% CI -5.28 to -4.32; very low-quality evidence), captodiame (1 study, 81 participants; MD -5.70 points, 95% CI -6.05 to -5.35; very low-quality evidence), paroxetine (2 studies, 99 participants; MD -6.75 points, 95% CI -9.64 to -3.86; very low-quality evidence), and flumazenil (1 study, 18 participants; MD -1.30 points, 95% CI -2.28 to -0.32; very low-quality evidence).Two pharmacological treatments seemed to reduce the proportion of participants that relapsed to benzodiazepine use: valproate (1 study, 27 participants; RR 0.31, 95% CI 0.11 to 0.90; very low-quality evidence) and cyamemazine (1 study, 124 participants; RR 0.33, 95% CI 0.14 to 0.78; very low-quality evidence). Alpidem decreased the proportion of participants with benzodiazepine discontinuation (1 study, 25 participants; RR 0.41, 95% CI 0.17 to 0.99; number needed to treat for an additional harmful outcome (NNTH) 2.3 participants; low-quality evidence) and increased the occurrence of withdrawal syndrome (1 study, 145 participants; RR 4.86, 95% CI 1.12 to 21.14; NNTH 5.9 participants; low-quality evidence). Likewise, magnesium aspartate decreased the proportion of participants discontinuing benzodiazepines (1 study, 144 participants; RR 0.80, 95% CI 0.66 to 0.96; NNTH 5.8; very low-quality evidence).Generally, adverse events were insufficiently reported. Specifically, one of the flumazenil trials was discontinued due to severe panic reactions. AUTHORS' CONCLUSIONS Given the low or very low quality of the evidence for the reported outcomes, and the small number of trials identified with a limited number of participants for each comparison, it is not possible to draw firm conclusions regarding pharmacological interventions to facilitate benzodiazepine discontinuation in chronic benzodiazepine users. Due to poor reporting, adverse events could not be reliably assessed across trials. More randomised controlled trials are required with less risk of systematic errors ('bias') and of random errors ('play of chance') and better and full reporting of patient-centred and long-term clinical outcomes. Such trials ought to be conducted independently of industry involvement.
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Affiliation(s)
- Lone Baandrup
- Mental Health Centre Glostrup, Mental Health Services of the Capital RegionCentre for Neuropsychiatric Schizophrenia ResearchNordre Ringvej 29‐67GlostrupDenmark2600
- Mental Health Services of the Capital RegionMental Health Centre BallerupMaglevænget 2BallerupDenmarkDK‐2750
| | - Bjørn H Ebdrup
- Mental Health Centre Glostrup, Mental Health Services of the Capital RegionCentre for Neuropsychiatric Schizophrenia ResearchNordre Ringvej 29‐67GlostrupDenmark2600
| | - Jesper Ø Rasmussen
- Mental Health Services of the Capital RegionMental Health Centre AmagerCopenhagenDenmark
- Mental Health Services of the Capital RegionMental Health Centre Sct. HansRoskildeDenmark
| | - Jane Lindschou
- Department 7812, Rigshospitalet, Copenhagen University HospitalCopenhagen Trial Unit, Centre for Clinical Intervention ResearchBlegdamsvej 9CopenhagenDenmarkDK‐2100
| | - Christian Gluud
- Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 7812, Rigshospitalet, Copenhagen University HospitalCochrane Hepato‐Biliary GroupBlegdamsvej 9CopenhagenDenmarkDK‐2100
| | - Birte Y Glenthøj
- Mental Health Centre Glostrup, Mental Health Services of the Capital RegionCentre for Neuropsychiatric Schizophrenia ResearchNordre Ringvej 29‐67GlostrupDenmark2600
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Franc A, Kubová K, Elbl J, Muselík J, Vetchý D, Šaloun J, Opatřilová R. Diazepam filled hard capsules intended for detoxification of patients addicted to benzodiazepines and Z-drugs. Eur J Hosp Pharm 2017; 26:10-15. [PMID: 31157089 DOI: 10.1136/ejhpharm-2016-001163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 06/08/2017] [Accepted: 06/20/2017] [Indexed: 11/04/2022] Open
Abstract
Objectives The abuse of benzodiazepines and Z-drugs reduces the quality of life of millions of addicted people worldwide. They cannot be discontinued abruptly due to harmful withdrawal symptoms. Detoxification is usually based on replacement of short/middle acting benzodiazepines or Z-drugs by diazepam and tapering the dose over time. In order to enhance patient adherence to an individual withdrawal plan, suitable diazepam dosage forms have to be available. Hard capsules containing an exact and uniform dose could be used for the relief of symptoms caused by altering the plasma level and overcoming psychogenic stress from the dose reduction. Methods This work demonstrates that capsules with a content of diazepam ranging from 2.125mg to 0.492 mg (dose decreasing always by 15%) cannot be easily prepared by standard mortar technology in a pharmacy. To meet mass and content uniformity European Pharmacopoeia criteria, capsules were prepared by improved technology based on the preparation of binary blends of calcium phosphate anhydrous and diazepam in descending concentrations in a high-speed mixer (time 30 s) and densification of about 10% during filling of the capsules. Results All batches (n=20) prepared by improved technology met the requirement for content uniformity compared with only nine batches prepared by standard mortar blender technology. Based on the process capability index, none of the samples prepared by standard technology fitted pharmacopeia limits at the statistically acceptable level. On the other hand, all batches prepared by improved technology exhibited acceptable process capability index. Conclusions We have shown that at least 99.73% of batches prepared by our improved technology would meet the pharmacopoeia limits for content uniformity and are suitable for treatment of this type of addiction.
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Affiliation(s)
- Aleš Franc
- Department of Pharmaceutics, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Kateřina Kubová
- Department of Pharmaceutics, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Jan Elbl
- Department of Pharmaceutics, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Jan Muselík
- Department of Pharmaceutics, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - David Vetchý
- Department of Pharmaceutics, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Jan Šaloun
- Department of Applied Pharmacy, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Radka Opatřilová
- Department of Chemical Drugs, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
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Mariani JJ, Malcolm RJ, Mamczur AK, Choi JC, Brady R, Nunes E, Levin FR. Pilot trial of gabapentin for the treatment of benzodiazepine abuse or dependence in methadone maintenance patients. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2016; 42:333-40. [PMID: 26962719 DOI: 10.3109/00952990.2015.1125493] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Benzodiazepine use disorders are a common clinical problem among methadone maintenance treatment patients and have adverse effects on clinical outcomes. OBJECTIVES To evaluate gabapentin for the outpatient treatment of benzodiazepine abuse or dependence in methadone maintenance patients. METHODS Participants (n = 19) using benzodiazepines at least 4 days per week were enrolled into an 8-week randomized double-blind placebo-controlled outpatient pilot trial. All participants received a manual-guided supportive psychotherapy aimed to promote abstinence. Study medication was titrated over a 2-week period to a maximum dose of gabapentin 1200 mg or placebo three times a day. Benzodiazepine use was assessed using urine toxicology confirmed self-report. Benzodiazepines were not provided as part of study participation; participants were provided guidance to gradually reduce benzodiazepine intake. RESULTS Sixteen participants had post-randomization data for analysis. Retention at week eight was 50%. The mean dose of gabapentin achieved by titration was 2666 mg/day (SD = ± 1446). There were no significant between group differences on benzodiazepine use outcomes (amount benzodiazepine per day [Mann-Whitney U = 27, p = 0.745], abstinent days per week [U = 28, p = 0.811]) and Clinical Instrument Withdrawal Assessment (CIWA)-benzodiazepines scale (U = 29.0, p = 0.913). One participant in the gabapentin group discontinued study medication because of peripheral edema. Two participants in the placebo group requested admission for inpatient detoxification treatment. CONCLUSION In outpatient methadone-maintained patients with benzodiazepine use disorder, gabapentin did significantly decrease benzodiazepine use relative to placebo. The small sample recruited for this trial may have limited the ability to detect a group difference.
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Affiliation(s)
- John J Mariani
- a Division on Substance Abuse , New York State Psychiatric Institute , New York , NY , USA.,b Department of Psychiatry , College of Physicians and Surgeons of Columbia University , New York , NY , USA
| | | | - Agnieszka K Mamczur
- a Division on Substance Abuse , New York State Psychiatric Institute , New York , NY , USA
| | - Jean C Choi
- d Division of Biostatistics , New York State Psychiatric Institute , New York , NY , USA
| | | | - Edward Nunes
- a Division on Substance Abuse , New York State Psychiatric Institute , New York , NY , USA.,b Department of Psychiatry , College of Physicians and Surgeons of Columbia University , New York , NY , USA
| | - Frances R Levin
- a Division on Substance Abuse , New York State Psychiatric Institute , New York , NY , USA.,b Department of Psychiatry , College of Physicians and Surgeons of Columbia University , New York , NY , USA
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Pollmann AS, Murphy AL, Bergman JC, Gardner DM. Deprescribing benzodiazepines and Z-drugs in community-dwelling adults: a scoping review. BMC Pharmacol Toxicol 2015; 16:19. [PMID: 26141716 PMCID: PMC4491204 DOI: 10.1186/s40360-015-0019-8] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/23/2015] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Long-term sedative use is prevalent and associated with significant morbidity, including adverse events such as falls, cognitive impairment, and sedation. The development of dependence can pose significant challenges when discontinuation is attempted as withdrawal symptoms often develop. We conducted a scoping review to map and characterize the literature and determine opportunities for future research regarding deprescribing strategies for long-term benzodiazepine and Z-drug (zopiclone, zolpidem, and zaleplon) use in community-dwelling adults. METHODS We searched PubMed, Cochrane Central Register of Controlled Trials, EMBASE, PsycINFO, CINAHL, TRIP, and JBI Ovid databases and conducted a grey literature search. Articles discussing methods for deprescribing benzodiazepines or Z-drugs in community-dwelling adults were selected. RESULTS Following removal of duplicates, 2797 articles were reviewed for eligibility. Of these, 367 were retrieved for full-text assessment and 139 were subsequently included for review. Seventy-four (53%) articles were original research, predominantly randomized controlled trials (n = 52 [37%]), whereas 58 (42%) were narrative reviews and seven (5%) were guidelines. Amongst original studies, pharmacologic strategies were the most commonly studied intervention (n = 42 [57%]). Additional deprescribing strategies included psychological therapies (n = 10 [14%]), mixed interventions (n = 12 [16%]), and others (n = 10 [14%]). Behaviour change interventions were commonly combined and included enablement (n = 56 [76%]), education (n = 36 [47%]), and training (n = 29 [39%]). Gradual dose reduction was frequently a component of studies, reviews, and guidelines, but methods varied widely. CONCLUSIONS Approaches proposed for deprescribing benzodiazepines and Z-drugs are numerous and heterogeneous. Current research in this area using methods such as randomized trials and meta-analyses may too narrowly encompass potential strategies available to target this phenomenon. Realist synthesis methods would be well suited to understand the mechanisms by which deprescribing interventions work and why they fail.
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Affiliation(s)
- André S Pollmann
- Faculty of Medicine, Dalhousie University, Mail Box #259, 5849 University Avenue, Room C-125, PO Box 15000, Halifax, NS, B3H 4R2, Canada.
| | - Andrea L Murphy
- College of Pharmacy and Department of Psychiatry, Dalhousie University, 5968 College St, PO Box 15000, Halifax, NS, B3H 4R2, Canada.
| | - Joel C Bergman
- College of Pharmacy and Department of Psychiatry, Dalhousie University, 5968 College St, PO Box 15000, Halifax, NS, B3H 4R2, Canada.
| | - David M Gardner
- Department of Psychiatry and College of Pharmacy, Dalhousie University, QEII HSC, AJLB 7517, 5909 Veterans' Memorial Lane, Halifax, NS, B3H 2E2, Canada.
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Gould RL, Coulson MC, Patel N, Highton-Williamson E, Howard RJ. Interventions for reducing benzodiazepine use in older people: meta-analysis of randomised controlled trials. Br J Psychiatry 2014; 204:98-107. [PMID: 24493654 DOI: 10.1192/bjp.bp.113.126003] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND The use of benzodiazepines has been advised against in older people, but prevalence rates remain high. AIMS To review the evidence for interventions aimed at reducing benzodiazepine use in older people. METHOD We conducted a systematic review, assessment of risk of bias and meta-analyses of randomised controlled trials of benzodiazepine withdrawal and prescribing interventions. RESULTS Ten withdrawal and eight prescribing studies met the inclusion criteria. At post-intervention, significantly higher odds of not using benzodiazepines were found with supervised withdrawal with psychotherapy (odds ratio (OR) = 5.06, 95% CI 2.68-9.57, P<0.00001) and withdrawal with prescribing interventions (OR = 1.43, 95% CI 1.02-2.02, P = 0.04) in comparison with the control interventions treatment as usual (TAU), education placebo, withdrawal with or without drug placebo, or psychotherapy alone. Significantly higher odds of not using benzodiazepines were also found for multifaceted prescribing interventions (OR = 1.37, 95% CI 1.10-1.72, P = 0.006) in comparison with control interventions (TAU and prescribing placebo). CONCLUSIONS Supervised benzodiazepine withdrawal augmented with psychotherapy should be considered in older people, although pragmatic reasons may necessitate consideration of other strategies such as medication review.
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Affiliation(s)
- Rebecca L Gould
- Rebecca L. Gould, PhD, DClinPsy, King's College London, Department of Old Age Psychiatry, Institute of Psychiatry, London; Mark C. Coulson, PhD, Department of Psychology, School of Health and Education, Middlesex University, Hendon; Natasha Patel, MBBS, Elizabeth Highton-Williamson, BSc, Robert J. Howard, MD, King's College London, Department of Old Age Psychiatry, Institute of Psychiatry, London, UK
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Addressing the Issue of Chronic, Inappropriate Benzodiazepine Use: How Can Pharmacists Play a Role? PHARMACY 2013. [DOI: 10.3390/pharmacy1020065] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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Ahlström C, Peletier LA, Gabrielsson J. Challenges of a mechanistic feedback model describing nicotinic acid-induced changes in non-esterified fatty acids in rats. J Pharmacokinet Pharmacodyn 2013; 40:497-512. [PMID: 23824920 DOI: 10.1007/s10928-013-9325-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Accepted: 06/22/2013] [Indexed: 11/27/2022]
Abstract
Previously, we developed a feedback model to describe the tolerance and oscillatory rebound of non-esterified fatty acid (NEFA) plasma concentrations in male Sprague Dawley rats after intravenous infusions of nicotinic acid (NiAc). This study challenges that model, using the following regimens of intravenous and oral NiAc dosing in male Sprague Dawley rats (n = 95) to create different patterns of exposure: (A) 30 min infusion at 0, 1, 5 or 20 μmol kg(-1) body weight; (B) 300 min infusion at 0, 5, 10 or 51 μmol kg(-1); (C) 30 min infusion at 5 μmol kg(-1), followed by a stepwise decrease in rate every 10 min for 180 min; (D) 30 min infusion at 5 μmol kg(-1), followed by a stepwise decrease in rate every 10 min for 180 min and another 30 min infusion at 5 μmol kg(-1) from 210 to 240 min; (E) an oral dose of 0, 24.4, 81.2 or 812 μmol kg(-1). Serial arterial blood samples were taken for measurement of plasma NiAc and NEFA concentrations. The gradual decrease in infusion rate in (C) and (D) were also designed to test the hypothesis that a gradual reduction in NiAc plasma concentration may be expected to reduce or prevent rebound. The absorption of NiAc was described by parallel linear and non-linear processes and the disposition of NiAc by a two-compartment model with endogenous turnover rate and two parallel capacity-limited elimination processes. NEFA (R) turnover, which was driven by the plasma concentration of NiAc via an inhibitory drug-mechanism function acting on NEFA formation, was described by a feedback model with a moderator distributed over a series of transit compartments, where the first compartment (M 1) inhibited the formation of R and the last compartment (M N ) stimulated the loss of R. All processes regulating the plasma NEFA concentration were assumed to be captured by the moderator function. Data were analyzed using non-linear mixed effects modeling (NONMEM). The potency IC 50 of NiAc was 68 nmol L(-1), the fractional turnover rate k out 0.27 L mmol(-1) min(-1), and the turnover rate of moderator k tol 0.023 min(-1). The lower physiological limit of NEFA, which was modeled as a NiAc-independent release (k cap ) of NEFA into plasma, was estimated to 0.023 mmol L(-1) min(-1). The parameter estimates derived in this study were consistent with our previous estimates, suggesting that the model may be used for prediction of the NEFA response time-course following different modes and routes administration of NiAc or NiAc analogues. In order to avoid NiAc-induced NEFA rebound, a slow decline in the NiAc exposure pattern is needed at or below IC (50).
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Affiliation(s)
- Christine Ahlström
- CVMD iMed DMPK, AstraZeneca R&D Mölndal, Pepparedsleden 1, 43183 Mölndal, Sweden.
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Denis C, Fatseas M, Lavie E, Auriacombe M. WITHDRAWN: Pharmacological interventions for benzodiazepine mono-dependence management in outpatient settings. Cochrane Database Syst Rev 2013; 2013:CD005194. [PMID: 23780681 PMCID: PMC10641645 DOI: 10.1002/14651858.cd005194.pub3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
This review was withdrawn from publication in June 2013 because it is substantially out‐of‐date. The editorial group responsible for this previously published document have withdrawn it from publication.
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Affiliation(s)
- Cecile Denis
- Laboratoire de Psychiatrie, Universite Victor Segalen Bordeaux - Centre Carreire du CHCP, Bordeaux Cedex, France.
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Quaglio G, Pattaro C, Gerra G, Mathewson S, Verbanck P, Des Jarlais DC, Lugoboni F. High dose benzodiazepine dependence: description of 29 patients treated with flumazenil infusion and stabilised with clonazepam. Psychiatry Res 2012; 198:457-62. [PMID: 22424905 DOI: 10.1016/j.psychres.2012.02.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 02/03/2012] [Accepted: 02/06/2012] [Indexed: 11/30/2022]
Abstract
The withdrawal syndrome from benzodiazepine (BZD) can be severe and in some cases may impede cessation of the use of the drug. We present here a case series of benzodiazepine detoxification by flumazenil infusion, stabilised with clonazepam. Patients were treated with flumazenil 1.35 mg/day for a median of 7 days. Self-reported physical withdrawal symptoms were recorded daily. In addition to flumazenil, antidepressants were given before treatment commenced and clonazepam was administered nightly with both being continued after discharge. Twenty-nine patients were treated. No patients dropped out from the treatment programme. Nine patients (31%) required a temporary reduction/cessation of the infusion. The linear trend in the reduction of the daily withdrawal scores in the overall study population was significant. The linear trends were also significant in the group of patients for whom a temporary reduction/suspension of the flumazenil was required. Six months after treatment, 15 patients (53%) were abstinent from clonazepam and other BZDs. For five (21%) the BZD dependence were reinstated. More than two-thirds of the subjects tolerated the procedure well and about half had a good long term response. Slow flumazenil infusion appears to merit consideration as a possible future treatment. Suggestions for future research are examined.
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Affiliation(s)
- Gianluca Quaglio
- Medical Service for Addictive Disorders, University of Verona, Italy.
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Hadley SJ, Mandel FS, Schweizer E. Switching from long-term benzodiazepine therapy to pregabalin in patients with generalized anxiety disorder: a double-blind, placebo-controlled trial. J Psychopharmacol 2012; 26:461-70. [PMID: 21693549 DOI: 10.1177/0269881111405360] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To evaluate the efficacy of pregabalin in facilitating taper off chronic benzodiazepines, outpatients (N = 106) with a lifetime diagnosis of generalized anxiety disorder (current diagnosis could be subthreshold) who had been treated with a benzodiazepine for 8-52 weeks were stabilized for 2-4 weeks on alprazolam in the range of 1-4 mg/day. Patients were then randomized to 12 weeks of double-blind treatment with either pregabalin 300-600 mg/day or placebo while undergoing a gradual benzodiazepine taper at a rate of 25% per week, followed by a 6-week benzodiazepine-free phase during which they continued double-blind study treatment. Outcome measures included ability to remain benzodiazepine-free (primary) as well as changes in Hamilton Anxiety Rating Scale (HAM)-A and Physician Withdrawal Checklist (PWC). At endpoint, a non-significant higher proportion of patients remained benzodiazepine-free receiving pregabalin compared with placebo (51.4% vs 37.0%). Treatment with pregabalin was associated with significantly greater endpoint reduction in the HAM-A total score versus placebo (-2.5 vs +1.3; p < 0.001), and lower endpoint mean PWC scores (6.5 vs 10.3; p = 0.012). Thirty patients (53%) in the pregabalin group and 19 patients (37%) in the placebo group completed the study, reducing the power to detect a significant difference on the primary outcome. The results on the anxiety and withdrawal severity measures suggest that switching to pregabalin may be a safe and effective method for discontinuing long-term benzodiazepine therapy.
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Ahlström C, Peletier LA, Gabrielsson J. Quantitative analysis of rate and extent of tolerance of biomarkers: application to nicotinic acid-induced changes in non-esterified fatty acids in rats. Eur J Pharm Sci 2011; 44:250-64. [PMID: 21856416 DOI: 10.1016/j.ejps.2011.08.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 06/17/2011] [Accepted: 08/03/2011] [Indexed: 11/28/2022]
Abstract
In this paper we quantitatively evaluate two feedback systems with a focus on rate and extent of tolerance and rebound development. In the two feedback systems, the regulation of turnover of response is governed by one or several moderators. In the basic system, one single moderator inhibits the formation of response. This system has been applied to cortisol secretion and serotonin reuptake inhibition. The basic system has been extended to adequately describe nicotinic acid (NiAc)-induced changes in non-esterified fatty acids (NEFA). In the extended system, the feedback is described by a cascade of moderators where the first inhibits formation of response and the last stimulates loss of response. The objectives of this paper were to analyze these systems from a mathematical/analytical and quantitative point of view and to present simulations with different parameter settings and dosing regimens in order to highlight the intrinsic behaviour of these systems and to present expressions and graphs that are applicable for quantification of rate and extent of tolerance and rebound. The dynamics of the moderators (k(tol)) compared to the dynamics of the response (k(out)), was shown to be important for the behaviour of both systems. For instance, slow dynamics of the moderator compared to the response (k(tol)<<k(out)), resulted in overshoot and pronounced rebound. The extent of tolerance was studied over time at a single constant drug concentration and at steady state for different drug concentrations and was found to be largest at drug concentrations close to IC(50). An upper limit for the response could be identified and included in the quantification of extent of rebound. Especially, for the extended system, the duration of exposure was an important factor affecting size of rebound. The rate of tolerance development was addressed by quantitatively estimating the time to steady state for the two systems, in which the value of k(tol) and the length of the cascade were critical.
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Briesacher BA, Soumerai SB, Field TS, Fouayzi H, Gurwitz JH. Medicare part D's exclusion of benzodiazepines and fracture risk in nursing homes. ACTA ACUST UNITED AC 2010; 170:693-8. [PMID: 20421554 DOI: 10.1001/archinternmed.2010.57] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Medicare Part D excludes benzodiazepine medications from coverage, and some state Medicaid programs also limit coverage. We assessed whether such policies decrease the risk of fractures in elderly individuals living in nursing homes. METHODS This is a quasi-experimental study with interrupted time-series estimation and extended Cox proportional hazards models comparing changes in outcomes before and after implementation of Medicare Part D in a nationwide sample of nursing home residents in 48 states. The study included 1 068 104 residents and a subsample of 50 874 residents with fracture data from 1 pharmacy. We assessed monthly prescribing rates of benzodiazepines and potential substitutes from January 1, 2005, through June 30, 2007, and hazard ratios for incident hip fracture and falls, adjusted for age, sex, and race/ethnicity. Estimates were stratified by concurrent Medicaid limits on benzodiazepines: no supplemental coverage (1 state), partial supplemental coverage (6 states), or complete supplemental coverage (41 states). RESULTS The no-supplemental-coverage policy resulted in an immediate and significant reduction of 10 absolute points in benzodiazepine use (27.0% to 17.0%) after Medicare Part D was implemented (95% confidence interval, -0.11 to -0.09; P < .001). Benzodiazepine use remained stable in the partial-supplemental- and complete-supplemental-coverage states. Hazard ratios for incident hip fracture were 1.60 (95% confidence interval, 1.05 to 2.45; P = .03) in the no-supplemental-coverage state after Medicare Part D implementation and 1.17 (95% confidence interval, 0.93 to 1.46; P = .18) in the partial-supplemental-coverage states, relative to complete-supplemental-coverage states. CONCLUSION Supplemental drug coverage exclusion policies affect the medication use of nursing home residents and may not decrease their fracture risk.
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Affiliation(s)
- Becky A Briesacher
- Division of Geriatric Medicine, University of Massachusetts Medical School, 377 Plantation St, Biotech Four, Ste 315, Worcester, MA 01605, USA.
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ROCHE ANNM, WATT KERRIANNE, FISCHER JANE. General Practitioners' views of home detoxification. Drug Alcohol Rev 2009. [DOI: 10.1080/09595230120092788] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Abstract
The use of benzodiazepine anxiolytics and hypnotics continues to excite controversy. Views differ from expert to expert and from country to country as to the extent of the problem, or even whether long-term benzodiazepine use actually constitutes a problem. The adverse effects of these drugs have been extensively documented and their effectiveness is being increasingly questioned. Discontinuation is usually beneficial as it is followed by improved psychomotor and cognitive functioning, particularly in the elderly. The potential for dependence and addiction have also become more apparent. The licensing of SSRIs for anxiety disorders has widened the prescribers' therapeutic choices (although this group of medications also have their own adverse effects). Melatonin agonists show promise in some forms of insomnia. Accordingly, it is now even more imperative that long-term benzodiazepine users be reviewed with respect to possible discontinuation. Strategies for discontinuation start with primary-care practitioners, who are still the main prescribers.This review sets out the stratagems that have been evaluated, concentrating on those of a pharmacological nature. Simple interventions include basic monitoring of repeat prescriptions and assessment by the doctor. Even a letter from the primary-care practitioner pointing out the continuing usage of benzodiazepines and questioning their need can result in reduction or cessation of use. Pharmacists also have a role to play in monitoring the use of benzodiazepines, although mobilizing their assistance is not yet routine. Such stratagems can avoid the use of specialist back-up services such as psychiatrists, home care, and addiction and alcohol misuse treatment facilities.Pharmacological interventions for benzodiazepine dependence have been reviewed in detail in a recent Cochrane review, but only eight studies proved adequate for analysis. Carbamazepine was the only drug that appeared to have any useful adjunctive properties for assisting in the discontinuation of benzodiazepines but the available data are insufficient for recommendations to be made regarding its use. Antidepressants can help if the patient is depressed before withdrawal or develops a depressive syndrome during withdrawal. The clearest strategy was to taper the medication; abrupt cessation can only be justified if a very serious adverse effect supervenes during treatment. No clear evidence suggests the optimum rate of tapering, and schedules vary from 4 weeks to several years. Our recommendation is to aim for withdrawal in <6 months, otherwise the withdrawal process can become the morbid focus of the patient's existence. Substitution of diazepam for another benzodiazepine can be helpful, at least logistically, as diazepam is available in a liquid formulation.Psychological interventions range from simple support through counselling to expert cognitive-behavioural therapy (CBT). Group therapy may be helpful as it at least provides support from other patients. The value of counselling is not established and it can be quite time consuming. CBT needs to be administered by fully trained and experienced personnel but seems effective, particularly in obviating relapse.The outcome of successful withdrawal is gratifying, both in terms of improved functioning and abstinence from the benzodiazepine usage. Economic benefits also ensue.Some of the principles of withdrawing benzodiazepines are listed. Antidepressants may be helpful, as may some symptomatic remedies. Care must be taken not to substitute one drug dependence problem for the original one.
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Affiliation(s)
- Malcolm Lader
- Institute of Psychiatry, King's College London, London, England.
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Parr JM, Kavanagh DJ, Cahill L, Mitchell G, McD Young R. Effectiveness of current treatment approaches for benzodiazepine discontinuation: a meta-analysis. Addiction 2009; 104:13-24. [PMID: 18983627 DOI: 10.1111/j.1360-0443.2008.02364.x] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIMS To assess the effectiveness of current treatment approaches to assist benzodiazepine discontinuation. METHODS A systematic review of approaches to benzodiazepine discontinuation in general practice and out-patient settings was undertaken. Routine care was compared with three treatment approaches: brief interventions, gradual dose reduction (GDR) and psychological interventions. GDR was compared with GDR plus psychological interventions or substitutive pharmacotherapies. RESULTS Inclusion criteria were met by 24 studies, and a further eight were identified by future search. GDR [odds ratio (OR) = 5.96, confidence interval (CI) = 2.08-17.11] and brief interventions (OR = 4.37, CI = 2.28-8.40) provided superior cessation rates at post-treatment to routine care. Psychological treatment plus GDR were superior to both routine care (OR = 3.38, CI = 1.86-6.12) and GDR alone (OR = 1.82, CI = 1.25-2.67). However, substitutive pharmacotherapies did not add to the impact of GDR (OR = 1.30, CI = 0.97-1.73), and abrupt substitution of benzodiazepines by other pharmacotherapy was less effective than GDR alone (OR = 0.30, CI = 0.14-0.64). Few studies on any technique had significantly greater benzodiazepine discontinuation than controls at follow-up. CONCLUSIONS Providing an intervention is more effective than routine care. Psychological interventions may improve discontinuation above GDR alone. While some substitutive pharmacotherapies may have promise, current evidence is insufficient to support their use.
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Affiliation(s)
- Jannette M Parr
- School of Medicine, University of Queensland, Herston, Queensland, Australia
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Voshaar RCO, Couvée JE, van Balkom AJLM, Mulder PGH, Zitman FG. Strategies for discontinuing long-term benzodiazepine use: meta-analysis. Br J Psychiatry 2006; 189:213-20. [PMID: 16946355 DOI: 10.1192/bjp.189.3.213] [Citation(s) in RCA: 111] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND The prevalence of benzodiazepine consumption in European countries remains at 2-3% of the general population despite the well-documented disadvantages of long-term use. AIMS To review systematically the success rates of different benzodiazepine discontinuation strategies. METHOD Meta-analysis of comparable intervention studies. RESULTS Twenty-nine articles met inclusion criteria. Two groups of interventions were identified; minimal intervention (e.g. giving simple advice in the form of a letter or meeting to a large group of people; n=3), and systematic discontinuation (defined as treatment programmes led by a physician or psychologist; n=26). Both were found to be significantly more effective than treatment as usual: minimal interventions (pooled OR=2.8, 95% CI 1.6-5.1); systematic discontinuation alone (one study, OR=6.1, 95% CI 2.0-18.6). Augmentation of systematic discontinuation with imipramine (two studies, OR=3.1, 95% CI 1.1-9.4) or group cognitive-behavioural therapy for patients with insomnia (two studies, OR=5.5, 95% CI 2.3-14.2) was superior to systematic discontinuation alone. CONCLUSIONS Evidence was found for the efficacy of stepped care (minimal intervention followed by systematic discontinuation alone) in discontinuing long-term benzodiazepine use.
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Denis C, Fatséas M, Lavie E, Auriacombe M. Pharmacological interventions for benzodiazepine mono-dependence management in outpatient settings. Cochrane Database Syst Rev 2006:CD005194. [PMID: 16856084 DOI: 10.1002/14651858.cd005194.pub2] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND The improved safety profile of benzodiazepines compared to barbiturates has contributed to a high rate of prescription since the seventies. Although benzodiazepines are highly effective for some disorders, they are potentially addictive drugs and they can provide reinforcement in some individuals. OBJECTIVES To evaluate the effectiveness of pharmacological interventions for benzodiazepine mono-dependence. SEARCH STRATEGY We searched the Cochrane Drugs and Alcohol Group' Register of Trials (October 2004), the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library Issue 4, 2004), MEDLINE (January 1966 to October 2004), EMBASE (January 1988 to October 2004), PsycInfo (1985 to October 2004), CINAHL (1982 to October 2004), Pascal, Toxibase, reference lists of articles. SELECTION CRITERIA Randomized trials of benzodiazepines dependence management regardless of type, dose (daily and total) and duration of benzodiazepine treatment. DATA COLLECTION AND ANALYSIS Reviewers independently assessed trials for inclusion, rated their methodological quality and extracted data. MAIN RESULTS Eight trials involving 458 participants were included. The studies included could not be analysed cumulatively because of heterogeneity of inteventions and participants' characteristics. Results support the policy of gradual rather than abrupt withdrawal of benzodiazepine. Progressive withdrawal (over 10 weeks) appeared preferable if compared to abrupt since the number of drop-outs was less important and the procedure judged more favourable by the participants. Short half-life benzodiazepine, associated with higher drop-out rates, did not have higher withdrawal symptoms scores. Switching from short half-life benzodiazepine to long half-life benzodiazepine before gradual taper withdrawal did not receive much support from this review. The role of propanolol in benzodiazepine withdrawal was unclear; adding tricyclic antidepressant (dothiepin) decreased the intensity of withdrawal symptoms but did not increase the rate of benzodiazepine abstinence at the end of the trial. Buspirone and Progesterone failed to suppress any benzodiazepine symptoms. Carbamazepine might have promise as an adjunctive medication for benzodiazepine withdrawal, particularly in patients receiving benzodiazepines in daily dosages of 20 mg/d or more of diazepam (or equivalents). AUTHORS' CONCLUSIONS The results of this systematic review point to the potential value of carbamazepine as an effective intervention for benzodiazepine gradual taper discontinuation. Carbamazepine has shown rather modest benefit in reducing withdrawal severity, although it did significantly improve drug-free outcome. Larger controlled studies are needed to confirm these benefits, to assess adverse effects and to identify when its clinical use might be most indicated. Other suggested treatment approaches to benzodiazepine discontinuation management should be explored (antidepressants, benzodiazepine receptors modulator).
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Affiliation(s)
- C Denis
- Universite Victor Segalen Bordeaux - Centre Carreire du CHCP, Laboratoire de Psychiatrie, 121 rue de la Bechade, Bordeaux Cedex, European Union 33076.
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Fatséas M, Lavie E, Denis C, Franques-Rénéric P, Tignol J, Auriacombe M. Sevrage aux benzodiazépines des sujets dépendants aux opiacés en traitement de substitution. Presse Med 2006; 35:599-606. [PMID: 16614601 DOI: 10.1016/s0755-4982(06)74647-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
INTRODUCTION Benzodiazepines are the most widely used psychotropic agents in the world. Abuse and dependence are reported in the general population and among drug misusers, including those dependent on heroine. Benzodiazepine use by heroine users increases their risk of overdose, not only from heroin but also substitution drugs such as methadone and more recently buprenorphine. Hence, detoxification from benzodiazepines is desirable. OBJECTIVE The objective of this paper was to review the literature and determine the best benzodiazepine detoxification procedure for opiate-dependent individuals receiving substitution treatment. METHODS Relevant studies were sought through systematic searches of Medline and Toxibase (a database focusing on substance abuse). RESULTS There were fewer controlled studies than expected about benzodiazepine detoxification, and all of them excluded subjects who misused opiates or were in opiate substitution treatment. The best evidence supports a procedure where the patient is switched to a long-lasting benzodiazepine and the dose then tapered by 25% of the initial dose each week. Diazepam is the drug most often used in the framework. In opiate users, diazepam may raise special problems of misuse, as suggested by clinical and epidemiologic studies. Nonetheless, diazepam is the only benzodiazepine found to be effective for this withdrawal in controlled studies and some studies indicate that unprescribed diazepam use in heroin users is sometimes motivated by the desire to alleviate withdrawal symptoms and discomfort. CONCLUSION Although diazepam appears to have potential for abuse, the available data does not rule out its therapeutic interest for benzodiazepine withdrawal in patients on opiate substitution treatment in an adequate treatment setting. Specific studies of this population are needed.
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Affiliation(s)
- Mélina Fatséas
- Laboratoire de Psychiatrie et JE 2358, Université Victor Segalen Bordeaux 2, Institut Fédératif de Recherche en Santé Publique, Inserm-IFR no 99, Département d'Addictologie, CHU de Bordeaux, Centre Hospitalier Charles Perrens
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Mercier-Guyon C, Chabannes JP, Saviuc P. The role of captodiamine in the withdrawal from long-term benzodiazepine treatment. Curr Med Res Opin 2004; 20:1347-55. [PMID: 15383182 DOI: 10.1185/030079904125004457] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND AND OBJECTIVES Discontinuation of benzodiazepines can be associated with the emergence of a withdrawal syndrome which compromises successful termination of treatment. The objective of the present study was to evaluate whether a six week administration of captodiamine during benzodiazepine discontinuation could prevent emergence of a benzodiazepine withdrawal syndrome and thus facilitate discontinuation of these drugs. SUBJECTS AND METHODS A controlled, randomised, double-blind trial of captodiamine versus placebo was conducted in 81 subjects presenting mild to moderate anxiety and treated for at least 6 months with a stable dose of benzodiazepine. Each subject was gradually weaned from benzodiazepines over a 14 day period using a tapering dose schedule and received captodiamine (150 mg/d) or placebo for 45 days from the beginning of the weaning period. OUTCOME MEASURES The primary outcome criterion was the extent of withdrawal symptoms assessed using the Tyrer Benzodiazepine Withdrawal Symptom Questionnaire. Secondary outcome criteria were; self-evaluation of tension, anxiety, drowsiness and slowing of physical and mental performance using visual analogue scales; quality of sleep using the Spiegel questionnaire; anxiety using the Hamilton Anxiety Rating Scale; and cognitive function using a driving stimulation test. RESULTS Analysis of the primary study criterion revealed a statistically significant difference (p < 0.0001) in the emergence of withdrawal symptoms between the two groups in favour of captodiamine at two, six and eight weeks following initiation of therapy. These results were supported by significant beneficial effects of captodiamine on the majority of secondary outcome measures. The switch to captodiamine was associated with an improvement in vigilance, which may be an advantage for the overall safety of the anxiolytic treatment, for example with regard to road safety. Discontinuation of captodiamine was not associated with the emergence of rebound anxiety. CONCLUSION Captodiamine represents an interesting strategy for achieving benzodiazepine substitution with a low risk of dependence or impairment of cognitive function. Further clinical studies addressing the anxiolytic activity and safety of captodiamine in such subjects are merited.
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Affiliation(s)
- C Mercier-Guyon
- Centre d'Etudes et de Recherches en Médecine du Trafic, Annecy, France.
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Pokk P, Zharkovsky A. Small platform stress attenuates the anxiogenic effect of diazepam withdrawal in the plus-maze test. Behav Brain Res 1998; 97:153-7. [PMID: 9867240 DOI: 10.1016/s0166-4328(98)00036-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The effect of stress on the behavioural changes caused by diazepam withdrawal was studied in mice. Diazepam (2.5 mg/kg) or vehicle was injected intraperitoneally twice a day for 2 weeks. When the last vehicle or diazepam injection had been administered to the mice, 12 h later, the mice were subjected to small platform stress exposure or left in their home cages. Small platform stress was induced by placing mice on small platforms (3.5 cm diameter) surrounded by water for 24 h. This experimental model contains several factors of stress like rapid eye movement (REM) sleep deprivation, isolation, immobilization and falling into the water. The plus-maze test was carried out with stressed mice as well as with mice not subjected to stress. Small platform stress induced an anxiolytic effect and diazepam withdrawal--an anxiogenic effect in the plus-maze test. Small platform stress also attenuated the anxiogenic effect of diazepam withdrawal. On the basis of this data it was proposed that small platform stress counteracts the anxiogenic effect of diazepam withdrawal in the plus-maze test. It was also proposed that the effect of stress on the signs of benzodiazepine withdrawal depends on the characteristics and duration of stress.
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Affiliation(s)
- P Pokk
- Department of Pharmacology, Faculty of Medicine, University of Tartu, Estonia
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Schweizer E, Rickels K. Benzodiazepine dependence and withdrawal: a review of the syndrome and its clinical management. Acta Psychiatr Scand Suppl 1998; 393:95-101. [PMID: 9777054 DOI: 10.1111/j.1600-0447.1998.tb05973.x] [Citation(s) in RCA: 97] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The treatment of anxiety has evolved through various phases. Currently, there is a growing recognition that anxiety disorders are frequently chronic and/or recurrent. There is also less optimism than a decade ago that benzodiazepines will be replaced by alternative agents that are not active at the benzodiazepine receptor. Consequently, the understanding and management of benzodiazepine dependence and withdrawal continue to be of some clinical importance. This article briefly reviews the withdrawal syndrome and the pharmacological and patient variables that contribute to it. It then summarizes the various approaches to managing benzodiazepine dependence and withdrawal.
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Affiliation(s)
- E Schweizer
- Department of Psychiatry, University of Pennsylvania School of Medicine, Philadelphia 19104, USA
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Romach MK, Kaplan HL, Busto UE, Somer G, Sellers EM. A controlled trial of ondansetron, a 5-HT3 antagonist, in benzodiazepine discontinuation. J Clin Psychopharmacol 1998; 18:121-31. [PMID: 9555597 DOI: 10.1097/00004714-199804000-00004] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Serotonin is implicated in the etiology of anxiety disorders and in the anxiolytic actions of benzodiazepines. Preclinical studies with 5-HT3 receptor antagonists, including ondansetron, show they have anxiolytic properties and that ondansetron suppresses withdrawal anxiety after abrupt discontinuation of chronic benzodiazepine treatment. We evaluated the efficacy of ondansetron as an adjunctive medication in the discontinuation of benzodiazepines in long-term users. One hundred eight patients who had used alprazolam or lorazepam regularly for > 3 months entered, and 97 completed a randomized double-blind discontinuation treatment program during which they received either ondansetron 2 mg twice daily or placebo and flexibly tapered their benzodiazepine over a 6-week period. There were no significant differences between the patients who had entered and completed treatment. Three weeks postmedication, 63% of the patients discontinued use of benzodiazepine. The percentage of reduction of benzodiazepine daily dosage at all time points in the treatment trial was similar for the ondansetron and placebo groups. Ondansetron had no significant effects on severity of withdrawal symptoms or levels of anxiety. High placebo response may have prevented detection of an ondansetron effect. At 1 year follow-up, 68% of patients reported that they stopped using benzodiazepine. Patient characteristics were more important than ondansetron in tapered benzodiazepine discontinuation.
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Affiliation(s)
- M K Romach
- Department of Pharmacology, University of Toronto, Ontario, Canada
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Lemoine P, Ohayon MM. Is hypnotic withdrawal facilitated by the transitory use of a substitute drug? Prog Neuropsychopharmacol Biol Psychiatry 1997; 21:111-24. [PMID: 9075261 DOI: 10.1016/s0278-5846(96)00162-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE Long-term consumption of hypnotics may lead to various side-effects, including impaired daytime and cognitive functioning and increased risk of accidents. Unfortunately, few guidelines exist for physicians to apply when attempting to withdraw hypnotics from patients. This study investigated whether withdrawal is facilitated by using zopiclone as a substitute drug and evaluated abrupt and gradual substitution techniques. METHODS This open, multicentre and randomized study involved 1,002 male and female outpatients aged 18 years or over recruited by psychiatrists in Lyon, France. Patients had a mean age of 44 years, and 65.9% were women. Outpatients were chronic insomniacs being treated with a hypnotic for at least three weeks. The study included a substitution (D0-D35) and a withdrawal (D36-D56) stage. Patients were randomly drawn into three parallel groups: Group A underwent gradual substitution of zopiclone for the initial BZD; Group B was subjected to complete and immediate withdrawal of the initial BZD in favor of zopiclone; and Group C remained on the initial BZD, though told otherwise. The withdrawal stage began on D36 with a 50% reduction in medication and ended on D50 with complete withdrawal. RESULTS Groups A (gradual substitution) and B (abrupt substitution) presented a net improvement in sleep during the substitution stage. However, Group B displayed a better improvement in sleep-onset period, a decrease in nocturnal awakenings and an increased quantity of sleep. In the withdrawal stage, Groups A and B were similar but Group C displayed a deterioration in sleep. Following the withdrawal stage, 29% of patients in Group C, 18% in Group A and 19% in Group B resumed hypnotic use. CONCLUSIONS Discontinuation of this type of medication is possible in over three quarters of cases, provided that the prescribing physician adheres to a precise withdrawal protocol. Patients on zopiclone were less likely to resume consumption of hypnotics during the week of full withdrawal and were more satisfied with sleep than when treated with a BZD hypnotic. Finally, the results of the study showed that abrupt substitution yielded better results for chronic users of hypnotics.
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Affiliation(s)
- P Lemoine
- Unité Clinique de Psychiatrie Biologique, Bron, France
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Cassano G, Petracca A, Borghi C, Chiroli S, Didoni G, Garreau M. A randomized, double-blind study of alpidem vs placebo in the prevention and treatment of benzodiazepine withdrawal syndrome. Eur Psychiatry 1996; 11:93-9. [PMID: 19698430 DOI: 10.1016/0924-9338(96)84786-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/1995] [Accepted: 03/08/1995] [Indexed: 10/18/2022] Open
Abstract
The aim of the trial was to assess alpidem efficacy in preventing and treating the benzodiazepine (BZ) withdrawal syndrome (WS). A multicentre, double-blind, randomized versus placebo, parallel group study of six-week duration was carried out in outpatients suffering from generalized anxiety or adjustment disorder with an anxious mood and taking non-hypnotic BZ as continuous course of therapy of at least one-year duration. At the entry, the patients abruptly discontinued BZs and were treated with 50 mg/bid/tid of alpidem or placebo. Withdrawal syndrome diagnosis was (regarding treatment allocation) formulated by an independent psychiatrist, according to DSM-III-R and an appropriate scale, the SESSB. One hundred seventy-three patients were randomized and 148 completed the study. Withdrawal syndrome occurred in 27 patients of the alpidem group (31.0%) and in 38 patients of the placebo group (44.2%). A severe WS was diagnosed in 11.1% of the patients in the alpidem group and in 31.6% of the placebo group. If not having been withdrawn from the market, alpidem could have been useful for the prevention of BZ withdrawal syndrome.
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Affiliation(s)
- G Cassano
- Clinica Psichiatrica, Università degli Studi di Pisa, Ospedale Santa Chiara, Via Roma 67, 56100 Pisa, France
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Abstract
This article deals with some of the recent evidence bearing on the issues of the liability of benzodiazepines to lead to abuse, dependence, and adverse behavioral effects. Reviews of epidemiological, clinical and experimental literature indicated that the previous conclusion about abuse of these drugs still holds: the vast majority of the use of benzodiazepines is appropriate. Problems of nonmedical use arise nearly exclusively among people who abuse other drugs. Nevertheless, there are reasons for concern about patients who take benzodiazepines regularly for long periods of time. These drugs can produce physiological dependence when taken chronically, and although this does not appear to result in dose escalation or other evidence of "psychological dependence," physiological dependence can result in patient discomfort if drug use is abruptly discontinued. Also, physicians are currently prescribing shorter-acting benzodiazepines in preference to longer-acting benzodiazepines. The shorter-acting drugs can produce a more intense withdrawal syndrome following chronic administration. Furthermore, rates of use of benzodiazepines increase with age, and elderly patients are more likely than younger ones to take the drug chronically. The clearest adverse effect of benzodiazepines is impairment of memory. This, too, may be particular concern in older patients whose recall in the absence of drug is typically impaired relative to younger individuals, and who are more compromised following drug administration.
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Affiliation(s)
- J H Woods
- Department of Pharmacology, University of Michigan Medical School, Ann Arbor 48109, USA
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Abstract
Withdrawal of benzodiazepines is currently advised for long-term benzodiazepine users because of doubts about continued efficacy, risks of adverse effects, including dependence and neuropsychological impairment and socio-economic costs. About half a million people in the UK may need advice on withdrawal. Successful withdrawal strategies should combine gradual dosage reduction and psychological support. The benzodiazepine dosage should be tapered at an individually titrated rate which should usually be under the patient's control. The whole process may take weeks or months. Withdrawal from diazepam is convenient because of available dosage strengths, but can be carried out directly from other benzodiazepine. Adjuvant medication may occasionally be required (antidepressants, propranolol) but no drugs have been proved to be of general utility in alleviating withdrawal-related symptoms. Psychological support should be available both during dosage reduction and for some months after cessation of drug use. Such support should include the provision of information about benzodiazepines, general encouragement, and measures to reduce anxiety and promote the learning of non-pharmacological ways of coping with stress. For many patients the degree of support required is minimal; a minority may need counselling or formal psychological therapy. Unwilling patients should not be forced to withdraw. With these methods, success rates of withdrawal are high and are unaffected by duration of usage, dosage or type of benzodiazepine, rate of withdrawal, symptom severity, psychiatric history or personality disorder. Longer-term outcome is less clear; a considerable proportion of patients may temporarily take benzodiazepines again and some need other psychotropic medication. However, the outcome may be improved by careful pharmacological and psychological handling of withdrawal and post-withdrawal phases.
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Affiliation(s)
- H Ashton
- Department of Pharmacological Sciences, University of Newcastle upon Tyne, UK
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Roy-Byrne PP, Sullivan MD, Cowley DS, Ries RK. Adjunctive treatment of benzodiazepine discontinuation syndromes: a review. J Psychiatr Res 1993; 27 Suppl 1:143-53. [PMID: 7908331 DOI: 10.1016/0022-3956(93)90024-v] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The variety of pharmacologic and psychotherapeutic approaches to facilitate benzodiazepine discontinuation are reviewed. Strategies to attenuate physiologic withdrawal with clonidine, propranolol and carbamazepine have been inconsistently effective. Strategies to prevent relapse by substituting medications that could later be discontinued more easily (i.e., antidepressants and azapirones) appear more useful but have been less well studied. Psychotherapeutic approaches appear to work, but specific therapeutic components are unclear and non-specific "placebo" effects may play an important role.
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Affiliation(s)
- P P Roy-Byrne
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle
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Affiliation(s)
- J Guy Edwards
- Royal South Hants HospitalSouthamptonSO9 4PEUnited Kingdom
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Murphy SM, Tyrer P. A double-blind comparison of the effects of gradual withdrawal of lorazepam, diazepam and bromazepam in benzodiazepine dependence. Br J Psychiatry 1991; 158:511-6. [PMID: 1675901 DOI: 10.1192/bjp.158.4.511] [Citation(s) in RCA: 74] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Using a double-blind procedure, 68 patients with putative benzodiazepine dependence were randomly allocated to one of three groups given lorazepam (n = 22), diazepam (n = 23) or bromazepam (n = 23) in doses equivalent to those of the patients' original benzodiazepine. After four weeks the dosage was reduced in 25% quantities until no further benzodiazepines were taken. A total of 23 patients dropped out during the study, ten on lorazepam (one of whom committed suicide), seven on diazepam and six on bromazepam. There were few differences in withdrawal symptoms between the three groups but, despite the higher dropout rate, these symptoms were somewhat less marked in the lorazepam group. Withdrawal symptoms were greater in patients who had taken a benzodiazepine for greater than 5 years and were most marked in those with personality disorders, predominantly dependent ones.
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Garcia-Borreguero D, Bronisch T, Apelt S, Yassouridis A, Emrich HM. Treatment of benzodiazepine withdrawal symptoms with carbamazepine. Eur Arch Psychiatry Clin Neurosci 1991; 241:145-50. [PMID: 1686406 DOI: 10.1007/bf02219713] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In 18 patients with a benzodiazepine (BZD) dependency the drug was withdrawn. The dose of BZD was gradually reduced in nine of the patients, while the others were additionally treated with carbamazepine (CBZ) for a further 15 days after BZD discontinuation. Withdrawal symptoms were assessed every third day during the study period. When comparing results in both groups, a clear trend towards less severe withdrawal symptoms could be observed in the group treated with CBZ. Some of the differences were statistically significant on days 9-12 after BZD withdrawal. Fundamental withdrawal symptoms (like hypersensitivity to sensory stimuli, abnormal perception of movement, depersonalisation or derealisation) were also less severe in the group treated with CBZ compared with the group not receiving that treatment. These findings support the results of previous reports indicating a therapeutical effect of CBZ in BZD withdrawal.
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Affiliation(s)
- D Garcia-Borreguero
- Max-Planck-Institute of Psychiatry, Clinical Institute, Munich, Federal Republic of Germany
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