Evidence supporting the use of: Asarum sieboldii
For the health condition: Laryngitis

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Synopsis

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

Asarum sieboldii, also known as wild ginger or "Saishin" in traditional East Asian medicine, has a long history of use in Chinese and Japanese herbal formulas. It is often included in prescriptions for respiratory ailments, including coughs, asthma, and laryngitis. The rationale is based on its purported abilities to “dispel wind,” “relieve pain,” and “open nasal passages.” Historical texts, such as those in Traditional Chinese Medicine (TCM), document its use for throat inflammation and hoarseness, symptoms that overlap with laryngitis. However, while its inclusion in such formulas is well-documented, direct scientific studies validating its efficacy specifically for laryngitis are lacking. Most modern research on Asarum sieboldii focuses on its analgesic, anti-inflammatory, and antitussive properties in animal models or in vitro studies, not on controlled clinical trials for laryngitis in humans. Furthermore, there are safety concerns due to the presence of aristolochic acids, compounds that are nephrotoxic and potentially carcinogenic. In summary, the use of Asarum sieboldii for laryngitis is justified by traditional practice, but current scientific evidence supporting its effectiveness for this specific condition is limited and indirect.

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