Randomized study of the efficacy and safety of oral elderberry extract in the treatment of influenza A and B virus infections
Zakay-Rones Z, Thom E, Wollan T, Wadstein J
Published in Journal of International Medical Research
Methodology
Randomized, double-blind, placebo-controlled trial of elderberry syrup 15 mL four times daily in influenza-positive adults
Key Findings
Symptoms were relieved on average four days earlier and rescue medication use was significantly lower in the elderberry group.
Conclusions
Elderberry extract shortened influenza illness duration, consistent with reduced viral replication.
Limitations
Small sample, manufacturer-linked trial, no direct viral titre measurement.
Supplements Studied
Elderberry syrup relieved influenza symptoms four days earlier than placebo.
Outcomes Measured
Symptoms were relieved on average four days earlier in the elderberry group.
Study Details
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Disclosures
Funding
Manufacturer-supported
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