Synopsis

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

Notopterygium, particularly the species Notopterygium incisum and Notopterygium forbesii, is a medicinal herb commonly used in Traditional Chinese Medicine (TCM). Within TCM, it is known as "Qiang Huo" and is primarily indicated for conditions associated with "wind-cold-dampness" such as headaches, body aches, and rheumatism. Its use for cough—especially spastic or persistent cough—is based on its traditional role in dispelling wind and relieving the exterior. Classical texts sometimes mention its use for coughs related to external wind-cold invasion, where it is believed to help alleviate symptoms by releasing the exterior and dispersing wind.

However, there is limited modern scientific evidence directly supporting its efficacy for cough, particularly spastic cough. Most contemporary research on Notopterygium focuses on its anti-inflammatory, analgesic, and immunomodulatory properties, but not specifically on antitussive (cough-suppressing) effects. Therefore, its use for cough remains primarily rooted in traditional practice, not in modern clinical trials or pharmacological studies. The evidence rating of 2 reflects the presence of a consistent traditional rationale, but a lack of robust scientific studies verifying its effectiveness for this specific indication.

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