Evidence supporting the use of: Paris polyphylla
For the health condition: Colds (decongestant)

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Synopsis

Source of validity: Traditional
Rating (out of 5): 1

Paris polyphylla, commonly known as "Chonglou" in traditional Chinese medicine (TCM), has a long history of medicinal use, primarily for its anti-inflammatory, analgesic, and antivenom properties. While it is not most famous for treating colds specifically, it has been used in some folk and TCM practices to address symptoms associated with respiratory infections, such as congestion and inflammation, due to its purported ability to "clear heat" and "remove toxins." However, there is limited direct scientific evidence supporting its efficacy as a decongestant or for specifically treating the common cold. Most of the modern research on Paris polyphylla focuses on its steroidal saponins, which exhibit anti-inflammatory and antimicrobial activities in vitro and in animal models. These properties may theoretically relieve some cold symptoms, but clinical trials or robust pharmacological studies directly evaluating its decongestant effects in humans are lacking. Therefore, its use for this indication remains grounded primarily in traditional practice rather than scientific validation.

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