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Background <p>The COVID-19 pandemic has necessitated the investigation of potential treatment options to alleviate symptoms, reduce severe infection rates, and reduce mortality rates. Previous research on Nigella sativa, a phytomedicine with various therapeutic properties, has shown promise. This study aims to determine the efficacy of Nigella sativa as a treatment option for COVID-19 patients.</p> Methods <p>We carried out a thorough systematic review of relevant literature from multiple databases until May 2024. Eligible studies were randomized controlled trials (RCTs) that investigated the efficacy of Nigella sativa as a treatment for COVID-19. We utilized the Cochrane Revised Risk of Bias 2 (ROB 2.0) to assess the quality of each included study. We carried out statistical analysis using RevMan version 5.4.</p> Results <p>The meta-analysis included a total of six studies with a total of 1595 COVID-19 patients. The use of Nigella sativa significantly reduced the severity of infection symptoms (OR = 0.08, 95% CI [0.02 to 0.25], <i>P</i> &lt; 0.0001) and demonstrated a significant reduction in mortality rates (<i>P</i> = 0.383). Also, it significantly reduced CRP levels (MD = -3.287, 95% CI [-4.620 to -1.955], <i>P</i> &lt; 0.00001) and the overall likelihood of patients experiencing headache (OR = 0.82, 95% CI [0.76 to 0.89], <i>P</i> &lt; 0.00001). Furthermore, in contrast, our study found no statistically significant effect of Nigella sativa on common COVID-19 symptoms such as fever, cough, fatigue, and ferritin levels, a key inflammatory marker. Similarly, it had no effect on the occurrence of rhinorrhea or shortness of breath among patients.</p> Conclusion <p>This meta-analysis provides evidence that Nigella sativa is effective as a potential treatment option for COVID-19 patients. The use of this phytomedicine significantly reduces the likelihood of patients experiencing headaches and severe infection symptoms.</p>

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Efficacy of Nigella sativa in COVID-19 patients: a systematic review and meta-analysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月28日

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  • Amr Elrosasy,
  • Amira Mohamed Taha,
  • Rashad G. Mohamed,
  • Fatmaelzahraa Yasser Ali,
  • Dang Nguyen,
  • Nouran Ahmed Taha,
  • Shirin Cadri,
  • Islam Omar,
  • Mohamed Elbanna,
  • Moaz Elsayed Abouelmagd

摘要

Background

The COVID-19 pandemic has necessitated the investigation of potential treatment options to alleviate symptoms, reduce severe infection rates, and reduce mortality rates. Previous research on Nigella sativa, a phytomedicine with various therapeutic properties, has shown promise. This study aims to determine the efficacy of Nigella sativa as a treatment option for COVID-19 patients.

Methods

We carried out a thorough systematic review of relevant literature from multiple databases until May 2024. Eligible studies were randomized controlled trials (RCTs) that investigated the efficacy of Nigella sativa as a treatment for COVID-19. We utilized the Cochrane Revised Risk of Bias 2 (ROB 2.0) to assess the quality of each included study. We carried out statistical analysis using RevMan version 5.4.

Results

The meta-analysis included a total of six studies with a total of 1595 COVID-19 patients. The use of Nigella sativa significantly reduced the severity of infection symptoms (OR = 0.08, 95% CI [0.02 to 0.25], P < 0.0001) and demonstrated a significant reduction in mortality rates (P = 0.383). Also, it significantly reduced CRP levels (MD = -3.287, 95% CI [-4.620 to -1.955], P < 0.00001) and the overall likelihood of patients experiencing headache (OR = 0.82, 95% CI [0.76 to 0.89], P < 0.00001). Furthermore, in contrast, our study found no statistically significant effect of Nigella sativa on common COVID-19 symptoms such as fever, cough, fatigue, and ferritin levels, a key inflammatory marker. Similarly, it had no effect on the occurrence of rhinorrhea or shortness of breath among patients.

Conclusion

This meta-analysis provides evidence that Nigella sativa is effective as a potential treatment option for COVID-19 patients. The use of this phytomedicine significantly reduces the likelihood of patients experiencing headaches and severe infection symptoms.