rct
    2010
    High Quality

    Echinacea for treating the common cold: a randomized trial

    Barrett B, Brown R, Rakel D

    Published in Annals of Internal Medicine

    Methodology

    Randomised trial of blinded echinacea, open-label echinacea, blinded placebo or no pills for common cold.

    Key Findings

    Illness duration and severity did not differ significantly between echinacea and placebo groups.

    Conclusions

    Echinacea did not meaningfully shorten cold illness in a large pragmatic trial.

    Limitations

    Single preparation and dose; self-reported symptom diaries.

    Supplements Studied

    Illness duration and severity did not differ significantly between echinacea and placebo groups.

    Outcomes Measured

    Immune Function

    Illness duration and severity did not differ significantly between echinacea and placebo groups.

    Related Health Concerns

    Chills
    Swollen Lymph Nodes

    Study Details

    Year:2010
    Sample Size:719
    Quality Score:8/10

    Access Study

    View on DOIView on PubMedOriginal Source

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