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The efficacy of herbal medicines on the length of stay and negative conversion time/rate outcomes in patients with COVID-19: a systematic review.

  • 2024-05-30
  • Frontiers in pharmacology 15
    • Irma Rahayu Latarissa
    • Anna Meiliana
    • Ida Paulina Sormin
    • Erizal Sugiono
    • Nasrul Wathoni
    • Melisa Intan Barliana
    • Keri Lestari

Study Design

Type
Systematic Review
Sample size
n = 19
Methods
An extensive review of literature spanning from 2019 to 2023 was carried out using well-known databases including PubMed, Scopus, and Cochrane. The search included relevant keywords such as 'randomized controlled trial', 'COVID-19', and 'herbal medicine'.

Introduction

In recent years, diverse initiatives have been carried out to control the COVID-19 pandemic, ranging from measures restricting social activities to analyzing drugs and vaccines. Studies on herbal medicines are also increasingly conducted in various countries as an adjuvant therapy or supplement. Therefore, this systematic review aimed to investigate the efficacy of herbal medicines analyzed from various countries through clinical trials with the randomized controlled trial method. The outcomes of Length of Stay (LOS), Negative Conversion Time (NCT), and Negative Conversion Rate (NCR) were the main focus.

Methods

An extensive review of literature spanning from 2019 to 2023 was carried out using well-known databases including PubMed, Scopus, and Cochrane. The search included relevant keywords such as "randomized controlled trial," "COVID-19," and "herbal medicine."

Results

A total of 8 articles were part of the inclusion criteria with outcomes of LOS, NCT, and NCR. In terms of LOS outcomes, all types of herbal medicines showed significant results, such as Persian Medicine Herbal (PM Herbal), Persian Barley Water (PBW), Jingyin Granules (JY granules), Reduning Injection, and Phyllanthus emblica (Amla). However, only JY granules showed significant results in NCR outcome, while JY granules and Reduning Injection showed significant results in reducing NCT.

Conclusion

These findings enrich our understanding of the potential benefits of herbal medicines in influencing LOS, NCR and NCT parameters in COVID-19 patients. Herbal medicines worked to treat COVID-19 through antiviral, anti-inflammatory, and immunomodulatory mechanisms.

Research Insights

  • Amalakiā†’Improved Negative Conversion Rate

    only JY granules showed significant results in NCR outcome

    Effect
    Neutral
    Effect size
    Small
  • Amalakiā†’Reduced Length of Stay

    all types of herbal medicines showed significant results, such as Persian Medicine Herbal (PM Herbal), Persian Barley Water (PBW), Jingyin Granules (JY granules), Reduning Injection, and Phyllanthus emblica (Amla)

    Effect
    Beneficial
    Effect size
    Small
  • Amalakiā†’Reduced Negative Conversion Time

    JY granules and Reduning Injection showed significant results in reducing NCT

    Effect
    Neutral
    Effect size
    Small
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