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Related Concept Videos

Antidepressant Drugs: MAOIs and Other Agents01:23

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Atypical antidepressants, including bupropion (Wellbutrin), mirtazapine (Remeron), nefazodone (Serzone), trazodone (Desyrel), and vilazodone (Viibryd), offer unique mechanisms of action. Bupropion weakly inhibits dopamine and norepinephrine reuptake, aiding depression treatment and smoking cessation, with a low risk of sexual dysfunction. Mirtazapine enhances serotonin and norepinephrine neurotransmission, leading to sedation, increased appetite, and weight gain. As a result, it helps treat...
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Antidepressant drugs are a class of medications primarily used for treating various mood disorders, including major depression, anxiety disorders, and other related conditions. These medicines work by modulating the neurotransmitter balance within the brain, alleviating depressive symptoms. Antidepressants can be broadly categorized into several groups according to their mechanism of action and chemical structure: Selective Serotonin Reuptake Inhibitors (SSRIs), Serotonin-Norepinephrine...
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Tricyclic Antidepressants (TCAs), including Desipramine (Norpramin), Imipramine (Tofranil), Clomipramine (Anafranil), and Amitriptyline (Elavil), inhibit serotonin and norepinephrine reuptake and also block other receptors. They are used for depression, pain conditions, and insomnia. Common adverse effects include anticholinergic effects, sedation, orthostatic hypotension, and weight gain. They have a narrow therapeutic window and so require plasma-level monitoring. Abrupt discontinuation can...
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Anticholinesterase Agents: Poisoning and Treatment01:26

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Anticholinesterases, also known as cholinesterase inhibitors, work by blocking the breakdown of acetylcholine, leading to its accumulation in the synaptic cleft. This accumulation indirectly enhances both muscarinic and nicotinic actions. These agents are classified as reversible or irreversible based on their mechanism of action.     
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Antidotes01:17

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Antidotes are medicinal substances used to counteract the harmful effects of toxins or drugs in the body. They function in various ways, each uniquely designed to combat specific toxic compounds.
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Enhanced Elimination of Poison01:26

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Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
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Related Experiment Video

Updated: Sep 9, 2025

Network Pharmacology and Validation of the Antidepressant Mechanisms of Qiangzhifang in a Chronic Restraint Stress-induced Depression Rat Model
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[Poisonings with antidepressants].

Johan Hallengren1, Erik Lindeman2, Carl Söderberg3

  • 1leg apotekare, Giftinformationscentralen.

Lakartidningen
|September 3, 2025
PubMed
Summary
This summary is machine-generated.

Intentional antidepressant overdoses show varying severity. Amitriptyline, clomipramine, venlafaxine, and bupropion pose the highest risks, necessitating careful prescription considering individual toxicity profiles.

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Area of Science:

  • Pharmacology and Toxicology
  • Clinical Psychiatry
  • Public Health

Context:

  • In 2019, the Swedish Poisons Information Centre (SPIC) recorded 1,198 hospital cases of intentional antidepressant poisonings.
  • Intentional self-poisoning is a significant public health concern, with antidepressants being a common agent.

Purpose:

  • To develop and apply a substance-specific poisoning severity index (PSI) for antidepressants.
  • To assess the risk of severe toxicity and suicide mortality associated with different antidepressant classes based on prescription rates.

Summary:

  • Severe poisonings were analyzed using the Poison Severity Score and divided by prescription rates to create a PSI. Amitriptyline, clomipramine, venlafaxine, and bupropion exhibited significantly higher PSIs compared to other antidepressants.
  • These same antidepressants also showed high scores in a suicide mortality index, accounting for a substantial proportion of serious poisonings and suicide deaths.
  • Analysis of SPIC and National Board of Forensic Medicine (NBFM) data revealed non-uniform toxicity risks among antidepressants.

Impact:

  • Highlights that the risk of severe toxicity from antidepressant overdose is not uniform across all medications.
  • Emphasizes the need for clinicians to consider the specific toxicity profile of each antidepressant when prescribing.
  • Informs public health strategies and clinical guidelines for managing antidepressant prescriptions and overdose risks.