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Related Concept Videos

Anxiolytic Drugs: Overview01:26

Anxiolytic Drugs: Overview

Anxiolytic drugs are vital in managing anxiety disorders by effectively alleviating symptoms such as excessive fear, tachycardia, and tremors. There are several classes of anxiolytic medications, each with unique mechanisms of action and potential side effects.
Primary Types of Anxiolytic Drugs
1. Benzodiazepines:
Benzodiazepines bind to the GABA-A receptor in the brain, enhancing GABA's interaction. This action reduces neurotransmission, effectively blocking anxiety-associated limbic circuitry.
Anxiolytic Drugs: Benzodiazepines and Buspirone01:29

Anxiolytic Drugs: Benzodiazepines and Buspirone

Benzodiazepines are a class of anxiolytic drugs known for their rapid efficacy and high therapeutic-to-lethal dose ratio, but with a potential risk of drug dependence. These drugs are lipophilic, allowing for rapid absorption after oral administration, eventually reaching the central nervous system (CNS). Once in the CNS, benzodiazepines bind to the allosteric site of the GABAA receptor. This binding enhances the inhibitory effects of the neurotransmitter GABA. By doing so, they prevent...
Sedatives and Hypnotics Drugs: Miscellaneous Agents01:17

Sedatives and Hypnotics Drugs: Miscellaneous Agents

Sedatives and hypnotics encompass a wide range of substances, each with its unique mechanism of action, uses, and potential adverse effects.
Melatonin congeners like ramelteon (Rozerem) and tasimelteon (Hetlioz) selectively bind to melatonin receptors (MT1 and MT2) and thus mimic the actions of melatonin, a hormone that regulates sleep-wake cycles. Tasimelteon is primarily used for non-24-hour sleep-wake disorder, common in blind patients. They are also used to treat conditions like insomnia...
Sedatives and Hypnotics Drugs: Benzodiazepines01:19

Sedatives and Hypnotics Drugs: Benzodiazepines

Benzodiazepines have both sedative and hypnotic properties. They include compounds such as diazepam (Valium) and alprazolam (Xanax). Structurally, their cores are similar, consisting of the fusion of a benzene ring and a diazepine ring, but they share a common mechanism of action in the central nervous system (CNS).
Benzodiazepines work by enhancing the effects of the inhibitory neurotransmitter GABA. They bind to the GABAA receptor, increasing its affinity for GABA, which opens chloride...
Sedatives and Hypnotics: Overview01:23

Sedatives and Hypnotics: Overview

Sedatives are drugs that alleviate anxiety, while hypnotics induce sleep. Both classes of medication suppress neuronal activity, leading to a calming effect for sedatives and facilitating sleep for hypnotics.
Sedative-hypnotics are categorized into barbiturates, benzodiazepines (BZDs), and non-benzodiazepines or Z-drugs. These drugs work by suppressing central nervous system activity, and this suppression is dose-dependent. Older sedative medications, like barbiturates, follow a linear curve in...
Sedatives and Hypnotics Drugs: Barbiturates01:20

Sedatives and Hypnotics Drugs: Barbiturates

Sedatives and hypnotics encompass a drug class that acts on the central nervous system (CNS) to alleviate anxiety, promote relaxation and induce sleep.These drugs function by amplifying the actions of the neurotransmitter γ-aminobutyric acid (GABA), resulting in reduced neuronal activity. Barbiturates, a subset of sedatives and hypnotics first synthesized in the late 1800s, are categorized into ultra-short, short, intermediate, and long-acting groups based on their duration of effect. A key...

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Related Experiment Video

Updated: May 24, 2026

Elevated Plus Maze Test Combined with Video Tracking Software to Investigate the Anxiolytic Effect of Exogenous Ketogenic Supplements
05:42

Elevated Plus Maze Test Combined with Video Tracking Software to Investigate the Anxiolytic Effect of Exogenous Ketogenic Supplements

Published on: January 7, 2019

[Anxiolytic].

Keiichiro Tsuji1, Osamu Tajima

  • 1Nozaki Clinic.

Nihon Rinsho. Japanese Journal of Clinical Medicine
|March 15, 2012
PubMed
Summary
This summary is machine-generated.

Benzodiazepines are recommended for short-term use due to dependence risks, unlike 5-HT1A receptor agonists. Global trends favor stricter benzodiazepine regulations, influencing practices even in Japan.

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Related Experiment Videos

Last Updated: May 24, 2026

Elevated Plus Maze Test Combined with Video Tracking Software to Investigate the Anxiolytic Effect of Exogenous Ketogenic Supplements
05:42

Elevated Plus Maze Test Combined with Video Tracking Software to Investigate the Anxiolytic Effect of Exogenous Ketogenic Supplements

Published on: January 7, 2019

Testing Animal Anxiety in Rats: Effects of Open Arm Ledges and Closed Arm Wall Transparency in Elevated Plus Maze Test
07:54

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Published on: June 29, 2018

The Successive Alleys Test of Anxiety in Mice and Rats
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The Successive Alleys Test of Anxiety in Mice and Rats

Published on: June 17, 2013

Area of Science:

  • Pharmacology
  • Clinical Therapeutics

Context:

  • Benzodiazepine anxiolytics and 5-HT1A receptor agonists represent distinct therapeutic classes.
  • Global pharmaceutical regulations increasingly scrutinize benzodiazepine prescriptions due to dependence potential.

Purpose:

  • To provide a clinician's guide for prescribing benzodiazepine anxiolytics and 5-HT1A receptor agonists.
  • To highlight the differing pharmacological mechanisms and usage patterns of these drug classes.

Summary:

  • Benzodiazepines, despite broad indications, are advised for short-term, as-needed use globally due to low-dose dependence risks.
  • 5-HT1A receptor agonists possess different mechanisms and usage patterns compared to benzodiazepines.
  • Japan's regulatory approach to benzodiazepines is evolving towards international standards.

Impact:

  • Informing clinical practice regarding the judicious use of anxiolytic medications.
  • Promoting awareness of international regulatory trends and their implications for benzodiazepine prescribing.
  • Facilitating a nuanced understanding of therapeutic options for anxiety disorders.