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KMID : 0368820230620010021
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Journal of the Korean Neuropsychiatr Association
2023 Volume.62 No. 1 p.21 ~ p.45
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Benzodiazepines: Pharmacology Up-to-date and Practical Issues
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Kang Ung-Gu
Kim Se-Hyun
Choi Young-Sook
Lee Kyu-Young
Kim Yong-Sik
Chung In-Won
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Abstract
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Benzodiazepines have been widely used as anxiolytics, sedatives, hypnotics, anticonvulsants, or central muscle relaxants since the 1960s despite significant adverse effects, the potential for misuse, and consequent overdose. Benzodiazepines exert their pharmacological action by binding to gamma-aminobutyric acid type A (GABA-A) receptors in the brain and facilitateing the inhibitory actions of the neurotransmitter GABA. Recent findings have also elucidated the effects of benzodiazepines on the allosteric modulation of GABA-A receptors, including receptor subtypes and transmembrane proteins, which is a significant step in our understanding of GABA pharmacology. In clinical practice, the use of benzodiazepines to treat psychiatric disorders has been limited due to the challenges associated with the long-term use, namely the risks of abuse, misuse, and overdose, as well as withdrawal effects. Furthermore, the approval of selective serotonin reuptake inhibitors for anxiety disorders has led to their extensive use as a first-line pharmacological option and they have also been promoted in various practice guidelines for the treatment of anxiety disorders. However, although recent systematic reviews and meta-analyses have shown that benzodiazepines are useful and effective drugs for the treatment of various neuropsychiatric disorders, including anxiety, debates over the clinical use of benzodiazepines continue. More than 60 years after the introduction of benzodiazepines in clinical practice, it is necessary to revisit the controversies associated with benzodiazepine use and to update the discussion current approach to practice with thethrough an understanding of the new data on their pharmacological actions and to identify appropriate indications according to the new diagnostic systems of psychiatric disorders through an extensive literature review.
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KEYWORD
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Psychiatric disorders, Benzodiazepine, Pharmacology, Adverse events
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