Charms and Harms: Echinacea
Barnes J - Trials assessing echinacea for prevention and treatment of URTIs report conflicting results and at present there is insufficient evidence to recommend a particular preparation or dosage regimen. The limited data available indicate that echinacea preparations are generally well-tolerated, although allergic reactions may occur. As with other herbal medicines, echinacea products differ in their pharmaceutical quality, and the implications of this for efficacy and safety should be considered. [more...]
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