Randomized Study of the Efficacy and Safety of Oral Elderberry Extract in the Treatment of Influenza A and B Virus Infections

Summary is written by Dr. Cathy Stein specifically for Trisha’s Elderberries. All rights reserved.
Dr. Cathy Stein has a PhD in epidemiology and her research focuses on infectious disease susceptibility.  She currently holds a tenured faculty position. 

Note: all randomized controlled trials were double-blinded with placebo


Randomized Study of the Efficacy and Safety of Oral Elderberry Extract in the Treatment of Influenza A and B Virus Infections, The Journal of International Medical Research (2004)

https://pubmed.ncbi.nlm.nih.gov/15080016/

  • Randomized clinical trial (RCT) of commercially produced elderberry syrup
  • N=60
  • Subjects taking flu vaccine were excluded from study
  • Subjects were allowed to take antiviral medication and/or nasal spray to help alleviate symptoms
  • Symptoms were relieved an average of 4 days sooner in elderberry group compared to placebo group

Keywords: RCT, influenza, anti-viral, improved symptoms

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