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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...
Antipsychotic Drugs: Typical and Atypical Agents01:21

Antipsychotic Drugs: Typical and Atypical Agents

Antipsychotic drugs are classified into first-generation (typical) drugs including phenothiazines; and second-generation (atypical) drugs. Chlorpromazine hydrochloride (Thorazine), a phenothiazine derivative, broadly impacts the central, autonomic, and endocrine systems. This drug, along with typical agents like haloperidol (Haldol), primarily works by antagonizing D2 receptors, thus reducing dopaminergic neurotransmission. However, typical antipsychotics can cause side effects such as sedation...
Drug Therapy01:28

Drug Therapy

The advent of drug therapy has profoundly shaped modern mental health care, providing targeted treatments for a range of psychological disorders. Psychotherapeutic drugs, classified into antianxiety, antidepressant, and antipsychotic medications, address symptoms across anxiety disorders, mood disorders, and schizophrenia. While these medications have transformed patient outcomes, they require careful management due to their potential side effects and limitations.
Antianxiety Medications

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Related Experiment Video

Updated: Jun 27, 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

Potential novel anxiolytic drugs.

D Christmas1, S Hood, D Nutt

  • 1Psychopharmacology Unit, University of Bristol, Level 5, Dorothy Hodgkin Building, Whitson Street, Bristol BS1 3NY, UK. david.christmas@bristol.ac.uk

Current Pharmaceutical Design
|December 17, 2008
PubMed
Summary

This review explores new neurological targets for anxiety disorders, focusing on neurotransmitter systems like GABA and neuropeptides. Understanding these biological mechanisms can lead to more effective anxiety treatments with fewer side effects.

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Methods for the Discovery of Novel Compounds Modulating a Gamma-Aminobutyric Acid Receptor Type A Neurotransmission
07:16

Methods for the Discovery of Novel Compounds Modulating a Gamma-Aminobutyric Acid Receptor Type A Neurotransmission

Published on: August 16, 2018

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

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

Published on: June 29, 2018

Related Experiment Videos

Last Updated: Jun 27, 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

Methods for the Discovery of Novel Compounds Modulating a Gamma-Aminobutyric Acid Receptor Type A Neurotransmission
07:16

Methods for the Discovery of Novel Compounds Modulating a Gamma-Aminobutyric Acid Receptor Type A Neurotransmission

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

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

Published on: June 29, 2018

Area of Science:

  • Neuroscience
  • Pharmacology
  • Psychiatry

Background:

  • Anxiety disorders are prevalent and debilitating, with current treatments facing challenges like resistance, slow action, and adverse effects.
  • Advances in neuroimaging and receptor ligand development have deepened our understanding of anxiety's biological underpinnings.
  • Existing knowledge highlights the need for novel therapeutic strategies targeting specific neurological pathways.

Purpose of the Study:

  • To review recent discoveries in key neurological systems relevant to anxiety.
  • To provide an understanding of current and emerging anxiolytic targets.
  • To explore the role of neurotransmitters and neuropeptides in anxiety disorders.

Main Methods:

  • Literature review of recent scientific discoveries.
  • Analysis of neurobiological mechanisms implicated in anxiety.
  • Examination of pharmacological tools for exploring neurological systems in humans.

Main Results:

  • GABA systems, long associated with anxiety, are now understood for more refined therapeutic targeting.
  • Emerging research explores the role of neuropeptides in anxiety disorders using new pharmacological tools.
  • Key neurotransmitter systems reviewed include GABA, serotonin, glutamate, noradrenaline, and dopamine.

Conclusions:

  • Enhanced understanding of neurological systems offers potential for improved anxiolytic treatments.
  • Targeting specific neurotransmitter and neuropeptide pathways represents a promising avenue for future anxiety therapies.
  • Continued research into the neurobiology of anxiety is crucial for overcoming current treatment limitations.