Evidence supporting the use of: Sundew
For the health condition: Wheezing

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Synopsis

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

Sundew (Drosera species) has a long history of traditional use in European herbal medicine, particularly for respiratory complaints such as coughs, bronchitis, and wheezing. Historical records from the 16th century onward document the use of sundew extracts as remedies for various lung and throat ailments. The plant's mucilaginous properties and purported antispasmodic effects were valued by herbalists who recommended it for soothing irritated airways and reducing spasmodic coughing and wheezing. Despite its established traditional role, modern scientific evidence supporting sundew's effectiveness for wheezing is limited. Some in vitro and animal studies suggest the presence of compounds such as flavonoids and naphthoquinones in sundew that may have antitussive (cough-suppressing), anti-inflammatory, or spasmolytic effects. However, well-designed clinical trials in humans are lacking, and systematic reviews generally note insufficient evidence to confirm its efficacy for respiratory symptoms like wheezing. In summary, sundew's use for wheezing is primarily justified by tradition, with a moderate historical consensus but limited modern research to validate these uses. Its safety profile, particularly with long-term or high-dose use, is also not well established. Therefore, while sundew remains a part of traditional herbal pharmacopeias for respiratory complaints, its use should be approached with caution and not as a substitute for evidence-based medical treatments.

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