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Related Concept Videos

Antidepressant Drugs: Tricyclics, SSRIs, and SNRIs01:28

Antidepressant Drugs: Tricyclics, SSRIs, and SNRIs

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...
Analgesia and Pain Management01:25

Analgesia and Pain Management

Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
Antidepressant Drugs: Overview01:25

Antidepressant Drugs: Overview

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...
Antidepressant Drugs: MAOIs and Other Agents01:23

Antidepressant Drugs: MAOIs and Other Agents

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...
Opioid Analgesics: Synthetic and Semisynthetic Opioids01:15

Opioid Analgesics: Synthetic and Semisynthetic Opioids

Synthetic and semisynthetic opioids are pivotal in pain management and tackling opioid addiction. Semisynthetic opioids, including morphinans (morphine derivatives), oxycodone, oxymorphone, hydrocodone, and hydromorphone, have improved pharmacokinetic profiles compared to morphine. Additionally, heroin and 6-MAM (6-Monoacetylmorphine) show better CNS penetration than morphine due to heightened lipid solubility. Hydromorphone, a potent opioid, undergoes hepatic metabolism to form the active...
Depressants01:28

Depressants

Depressant drugs, including alcohol and sedative-hypnotics, diminish central nervous system activity by enhancing the action of gamma-aminobutyric acid (GABA), a neurotransmitter that reduces brain activity and promotes relaxation. These substances can have various therapeutic uses but also pose significant risks, especially when misused or combined.
Alcohol is a common depressant that can induce a sense of relaxation and reduced inhibition at low doses. Contrary to its occasional...

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Related Experiment Video

Updated: Jul 12, 2026

Burn Injury-Induced Pain and Depression-Like Behavior in Mice
07:08

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Published on: September 29, 2021

[Antidepressants and pain].

Alain Eschalier1, Christine Courteix

  • 1INSERM, U766, Faculté de médecine, Université d'Auvergne, 63001 Clermont-Ferrand, France.

Revue Medicale Suisse
|August 31, 2007
PubMed
Summary

Tricyclic and SNRI antidepressants may offer pain relief through serotonin and norepinephrine reuptake inhibition. Further research is needed to explore additional mechanisms and improve treatments for chronic neuropathic pain.

Area of Science:

  • Neuroscience
  • Pharmacology
  • Pain Management

Context:

  • Chronic neuropathic pain presents a significant therapeutic challenge.
  • Current treatments often rely on the monoaminergic hypothesis involving serotonin and norepinephrine reuptake inhibitors (SNRIs).
  • The precise mechanisms underlying antidepressant efficacy in pain management require further elucidation.

Purpose:

  • To investigate mechanisms beyond traditional monoaminergic pathways in antidepressant-mediated analgesia.
  • To explore novel therapeutic strategies for chronic neuropathic pain.
  • To enhance the efficacy and selection criteria for serotonin reuptake inhibitors (SRIs) and related antidepressants.

Summary:

  • While serotonin and norepinephrine reuptake inhibition explains some antidepressant analgesic effects, other mechanisms modulating chronic pain-induced neuroplasticity may be involved.

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  • Fundamental and clinical studies are essential to validate the monoaminergic hypothesis.
  • Identifying alternative pathways could lead to improved antidepressant selection and novel combination therapies for neuropathic pain.

    • Impact:

    • This research could refine our understanding of antidepressant action in pain management.
    • Findings may lead to more effective and personalized treatment strategies for chronic neuropathic pain.
    • Potential for developing innovative therapeutic approaches, including medication combinations, to address unmet clinical needs.