Synopsis

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

Zhejiang fritillary (Fritillaria thunbergii), known as "Zhe Bei Mu" in Chinese medicine, is traditionally used to treat cough and respiratory symptoms. Its use is documented in classical Chinese medical texts dating back centuries. The bulbs of this plant are believed to clear heat, resolve phlegm, and relieve cough, particularly when associated with thick sputum or heat in the lungs. In traditional Chinese medicine (TCM), the herb is often combined with other ingredients to enhance its efficacy and tailor treatment to individual patterns of disharmony.

Modern pharmacological studies have identified certain alkaloids (such as peimine and peiminine) in Zhejiang fritillary that may exert antitussive (cough-suppressing), expectorant, and anti-inflammatory effects in animal models. However, most of the scientific research available is preclinical and not robustly validated in human clinical trials. As such, while there is some emerging scientific support, the primary basis for its use in cough remains traditional, supported by its long-standing inclusion in herbal formulas for respiratory symptoms.

Overall, Zhejiang fritillary’s use for general cough is well-established in traditional practice (evidence rating: 3), but more high-quality clinical research is needed to fully substantiate these effects in modern medicine.

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