Evidence supporting the use of: Aster tataricus
For the body system: Bronchials

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Synopsis

Source of validity: Traditional
Rating (out of 5): 3

Aster tataricus, commonly known as "zi wan" in Traditional Chinese Medicine (TCM), has a long history of use for supporting the respiratory system, particularly the bronchi. It is traditionally employed as an expectorant and antitussive to relieve coughs, clear phlegm, and ease symptoms of bronchitis and other respiratory conditions. Ancient Chinese medical texts, such as the "Shennong Bencao Jing," describe its use for "dispelling phlegm and stopping cough." In TCM, Aster tataricus is often used in combination with other herbs in formulas to address patterns involving phlegm and cough with difficulty expectorating sputum.

Scientific studies investigating Aster tataricus are limited, but some pharmacological research supports its traditional uses. Certain compounds isolated from the root, such as saponins and triterpenoids, have demonstrated anti-inflammatory, antitussive, and expectorant activities in animal models. For example, studies published in journals such as "Phytotherapy Research" and "Journal of Ethnopharmacology" have noted its ability to reduce cough frequency and facilitate mucus clearance in rodents. However, robust clinical trials in humans are lacking, and most evidence remains preclinical or anecdotal.

In summary, the use of Aster tataricus to support the bronchial system is primarily justified by tradition, with some supporting preclinical scientific evidence but insufficient high-quality clinical data to confirm efficacy by modern standards.

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