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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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Related Experiment Video

Updated: Jan 9, 2026

Thermostabilization, Expression, Purification, and Crystallization of the Human Serotonin Transporter Bound to S-citalopram
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[Selective serotonin reuptake inhibitor(SSRI)].

N Motohashi1

  • 1National Center Hospital for Mental, Nervous, and Muscular Disorders, National Center of Neurology and Psychiatry (NCNP).

Nihon Rinsho. Japanese Journal of Clinical Medicine
|August 25, 2001
PubMed
Summary
This summary is machine-generated.

Selective serotonin reuptake inhibitors (SSRIs) are safe antidepressants for depression and other disorders. While effective, common side effects include nausea, headache, and anxiety, with therapeutic effects possibly linked to serotonin autoreceptor desensitization.

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Area of Science:

  • Pharmacology
  • Neuroscience

Context:

  • Selective serotonin reuptuptake inhibitors (SSRIs) are widely prescribed antidepressants.
  • Five SSRIs are available globally, but only two (fluvoxamine, paroxetine) are approved in Japan.
  • SSRIs treat depression, obsessive-compulsive disorders, panic disorders, and eating disorders.

Purpose:

  • To provide an overview of Selective serotonin reuptake inhibitors (SSRIs).
  • To discuss the therapeutic applications and side effect profiles of SSRIs.
  • To explore the potential mechanisms of action for SSRI efficacy.

Summary:

  • SSRIs are generally safe and effective antidepressants.
  • Common side effects include gastrointestinal (nausea), neurological (headache, tremor), and psychiatric (anxiety) symptoms.
  • Therapeutic effects may involve desensitization of serotonin 1A autoreceptors, though other mechanisms could be involved.

Impact:

  • Informs clinicians and researchers about SSRI usage, side effects, and mechanisms.
  • Highlights regional differences in SSRI approval (Japan vs. global).
  • Contributes to understanding antidepressant pharmacology and treatment strategies.