Synopsis

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

Aster (unspecified species) has been used traditionally in some systems of herbal medicine, particularly in East Asian countries such as China and Korea, to address respiratory and chest-related symptoms. In Traditional Chinese Medicine (TCM), certain species of Aster, such as Aster tataricus (commonly known as Zi Wan), are included in herbal formulas to "resolve phlegm," "relieve cough," and sometimes to "alleviate chest congestion." However, the concept of "chest pain" in TCM is not always directly analogous to the biomedical symptom of angina or cardiac-origin chest pain; rather, it may refer more generally to discomfort or fullness in the chest due to phlegm, cough, or respiratory infection.

There is very limited scientific evidence to support the use of Aster species specifically for chest pain of any etiology. Preclinical studies have investigated some anti-inflammatory and expectorant effects of Aster extracts, but these do not directly address chest pain, especially of cardiac origin. No high-quality clinical trials have evaluated the efficacy of Aster for chest pain in the biomedical sense.

In summary, the use of Aster for chest pain is primarily based on traditional use in TCM and similar systems, with only anecdotal or indirect support. Scientific validation for this application is currently lacking.

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