Synopsis

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

Qin Jiao (Gentiana macrophylla or related Gentiana species) is a traditional Chinese medicinal herb historically used for conditions such as rheumatism, jaundice, and edema. Its use to treat or support edema primarily arises from its place in classical Chinese medical formulas, where it is thought to "dispel wind-dampness," promote urination, and reduce swelling. In traditional Chinese medicine (TCM) theory, edema is often attributed to "dampness" or impaired fluid metabolism, and Qin Jiao is believed to act by resolving dampness and supporting spleen function. Several classical texts, including the "Shennong Bencao Jing" and later materia medica, list Qin Jiao for such uses. However, the evidence supporting its efficacy for edema is largely anecdotal and based on centuries of empirical use rather than systematic clinical investigation. Modern pharmacological studies on Qin Jiao focus mainly on its anti-inflammatory and hepatoprotective properties, with limited direct research into its effects on fluid balance or edema. Thus, while the traditional rationale for its use in edema is well documented, scientific validation remains weak or indirect at best.

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