Wei Ling Xian (Chinese Clematis Root)

Chinese Herb Actions

Chinese Herb Dosage

• What is the typical dosage of Wei Ling Xian?

  Roughly 6–10 g in decoction, with the historical fish-bone application described as using a stronger decoction (up to about 30 g) taken as a folk remedy rather than a standard internal-medicine dose — a distinction worth keeping clear.

  Source: Sacred Lotus sources & references; standard materia medica dosage ranges (Chen & Chen; Bensky & Barolet). Reference only — not a prescription.

Chinese Herb Contraindications & Cautions

• Are there cautions for Wei Ling Xian?

  Its dispersing action means prolonged or excessive use can injure Qi, so Wei Ling Xian is traditionally used for a defined course appropriate to a wind-damp Bi-syndrome pattern rather than as an ongoing tonic. It is not indicated where the underlying picture is Qi or Blood deficiency without a clear excess/obstruction pattern, and should be used under a qualified practitioner's guidance.

  Source: Sacred Lotus sources & references; materia medica consensus.

Chinese Herb Toxicity & Overdose

• Low at standard therapeutic decoction doses, but overdose or prolonged excessive use has been associated with gastrointestinal and mucosal irritation — reported effects include gastrointestinal bleeding, a burning sensation, and swelling or ulceration in the oral cavity, alongside vomiting, abdominal pain, and severe diarrhea in more serious cases; topical overexposure has been associated with skin rash, blistering, or allergic dermatitis. This pattern of mucosal/irritant toxicity is consistent with the broader Ranunculaceae plant family (which includes Clematis species), some members of which contain irritant compounds capable of producing these effects on skin and mucous membranes at high exposure.

  Source: Sacred Lotus sources & references; materia medica consensus. Reference note, not a safety guarantee.

Western / Biomedical Research

Chinese Herb Clinical Studies & Research

Provided as research context — a summary of published biomedical study, not a therapeutic or medical claim.

• Is there modern research on Wei Ling Xian (Clematis chinensis)?

  Yes — preclinical research on Clematis chinensis saponins and polysaccharides supports its traditional anti-inflammatory, pain-relieving use in joint/Bi-syndrome-type conditions, though this evidence is laboratory- and animal-based rather than from human clinical trials.

  • Clematichinenoside AR (saponin), rheumatoid arthritis models — a 2022 study found this Clematis chinensis-derived saponin significantly improved disease severity in a collagen-induced arthritis animal model and inhibited proliferation and inflammatory activity of fibroblast-like synoviocytes (joint-lining cells) in human cell culture, acting through a specific intracellular signaling pathway; preclinical evidence, not a demonstrated human treatment effect.
  • Root polysaccharide, anti-inflammatory activity — a 2025 study isolated and structurally characterized a pectin-like polysaccharide from Clematis chinensis root and found it inhibited inflammatory-cell proliferation and pro-inflammatory factor expression in a rheumatoid-arthritis-relevant cell model, alongside effects on cartilage-breakdown markers; laboratory (in vitro) research.
  • Phytochemistry — chemical studies have isolated phenolic glycosides and indole alkaloids from the roots and rhizomes of Clematis chinensis, contributing to an evolving picture of the compound classes likely responsible for its traditional actions.

  Taken together, the research base is preclinical (cell and animal models) and chemistry-focused; it offers plausible mechanistic support for the traditional wind-damp/Bi-syndrome use but does not constitute clinical proof.

  Sources: PMID 36279670 (International Immunopharmacology, 2022, clematichinenoside AR in rheumatoid arthritis models); PMID 40068746 (International Journal of Biological Macromolecules, 2025, root polysaccharide characterization and anti-inflammatory activity); PMID 37598991 (Phytochemistry, 2023, phenolic glycosides and indole alkaloids). Research context, not a therapeutic claim.

Chinese Herb Notes

• What does "dispersing" mean for Wei Ling Xian, and why does prolonged use matter?

  Wei Ling Xian is classified among the more strongly dispersing (draining/scattering) wind-damp herbs — its spicy, salty, warm nature moves powerfully through the channels, which is exactly why it is effective for stubborn Bi-syndrome pain, but the same dispersing quality means it is not a gentle, long-term tonic herb.

  Because it disperses rather than builds, materia medica sources caution that prolonged or excessive use can injure Qi — consistent with the general principle that strongly moving/draining herbs, used past what a pattern requires, can weaken rather than support the body's underlying Qi. This is a reason such herbs are traditionally used for a defined course tied to the presenting pattern, rather than continuously.

  Source: Sacred Lotus sources & references, cross-referenced against multiple online sources and materia medica consensus.