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Psychiatry2 papers

Recurrent major depression in remission

Last edited: 4/10/2026

Overview

Recurrent major depression is characterized by repeated episodes of major depressive disorder. Maintaining remission and preventing relapse are key goals of treatment.

Management

  • Adjunctive N-acetylcysteine (NAC) may ameliorate depressive symptoms 1.
  • * Doses ranged from 1000 to 3000 mg daily 1. * Treatment duration ranged from 8 to 24 weeks 1. * A significant difference was noted between NAC and placebo in terms of depression score change 1. * However, large-scale clinical trials are needed to substantiate these results due to wide confidence intervals 1.

    Key Recommendations

  • Adjunctive N-acetylcysteine (NAC) may be considered to ameliorate depressive symptoms in patients with psychiatric problems, particularly bipolar disorder 1. (Evidence: Moderate)
  • Further large-scale clinical trials are needed to confirm the efficacy of NAC due to wide confidence intervals 1. (Evidence: Moderate)
  • References

    1 Peng TR, Lin HH, Tseng TL, Huang YH, Tsai PY, Lin CY et al.. Efficacy of N-acetylcysteine for patients with depression: An updated systematic review and meta-analysis. General hospital psychiatry 2024. link

    Original source

    1. [1]
      Efficacy of N-acetylcysteine for patients with depression: An updated systematic review and meta-analysis.Peng TR, Lin HH, Tseng TL, Huang YH, Tsai PY, Lin CY et al. General hospital psychiatry (2024)

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