Evidence supporting the use of: Bupleurum (unspecified)
For the health condition: Nausea and Vomiting

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Synopsis

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

Bupleurum, particularly Bupleurum chinense (Chai Hu), is an herb widely used in Traditional Chinese Medicine (TCM). Its primary historical uses are for harmonizing or “soothing” the liver, reducing fever, and treating conditions such as influenza, fever, and certain digestive complaints. In TCM, Bupleurum is often included in multi-herb formulas such as Xiao Chai Hu Tang (Minor Bupleurum Decoction), which are prescribed for various syndromes that may include symptoms like nausea and vomiting, usually as part of a broader pattern diagnosis (e.g., Shaoyang syndrome). However, the direct use of Bupleurum alone specifically for nausea and vomiting is not strongly emphasized in classical TCM literature; its benefit is generally considered as part of a synergistic formula.

Modern scientific evidence for Bupleurum’s efficacy in treating nausea and vomiting is quite limited. There are only a few clinical studies, usually on multi-herb formulas, and these do not isolate Bupleurum’s effect. The mechanism by which Bupleurum or its constituents might affect nausea or vomiting has not been well established in scientific research. Overall, the use of Bupleurum for this indication is based primarily on tradition and anecdotal reports rather than robust clinical evidence.

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