Pubescent Angelica (Angelica pubescens), also known as Du Huo in traditional Chinese medicine (TCM), is primarily used for its purported analgesic and anti-inflammatory properties, especially in the treatment of rheumatism, arthritis, and lower back pain. In the context of respiratory diseases such as emphysema, there is no robust scientific evidence supporting its efficacy. However, in TCM, Du Huo is occasionally included in herbal formulations for chronic cough or wheezing, conditions that may overlap symptomatically with emphysema. The rationale behind its use is rooted in traditional theories of "expelling wind and dampness," rather than a direct understanding of emphysema as defined by modern medicine.

The available literature does not provide clinical trials or significant pharmacological studies validating the use of Pubescent Angelica specifically for emphysema. Any use for this purpose is based on traditional practice and anecdotal evidence rather than controlled scientific research. Modern pharmacological research has focused on its anti-inflammatory and analgesic effects, but these are not directly applicable to the pathophysiology of emphysema. Thus, while its use for emphysema may be encountered in traditional settings, it lacks substantial evidence or endorsement from contemporary scientific studies.