Evidence supporting the use of: Echinacea
For the health condition: Infection (viral)

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Echinacea, commonly known as purple coneflower, has a longstanding tradition in North American Indigenous medicine and later European herbalism for supporting the body during infections, particularly those of the upper respiratory tract such as colds and flu, which are often viral. Historical records indicate that Native American tribes used Echinacea species for a variety of ailments, including infections and wounds. In the late 19th and early 20th centuries, Echinacea became popular in the United States and Europe as a remedy for respiratory infections before the advent of antibiotics.

Scientific investigations have produced mixed results regarding Echinacea’s efficacy in treating or preventing viral infections. Some small studies and meta-analyses suggest a modest reduction in the duration or severity of cold symptoms, but results are inconsistent and often limited by study design, variability in Echinacea preparations, and potential publication bias. Major reviews, such as those by the Cochrane Collaboration, conclude that evidence is insufficient to definitively support its effectiveness for viral infections. Despite this, Echinacea remains popular as an over-the-counter remedy based largely on traditional use and anecdotal reports rather than robust scientific validation.

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Products containing Echinacea

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