Chinese Clematis Root

Chinese
威灵仙
Pinyin
Wei Ling Xian
Latin
Clematidis Radix et Rhizoma

TCM Properties

Taste
acrid, salty
Temperature
warm
Channels
Bladder

Traditional Use

Primary Actions

  • Dispels wind-damp and powerfully unblocks the channels - Wei Ling Xian is one of the more mobile penetrating Bi-syndrome herbs for severe joint pain, limb numbness, tendon spasm, and stiffness when cold-damp obstruction has lodged deeply in the channels.
  • Relieves pain in both upper and lower body obstruction patterns - unlike some wind-damp herbs that are more region-specific, Wei Ling Xian is valued when pain wanders widely or when longstanding painful obstruction affects multiple joints, muscles, and sinews at once.
  • Softens and guides downward to address fish bones lodged in the throat - larger doses are traditionally used when a small fish bone is superficially stuck and the herb's acrid-salty, dispersing-softening nature can help release the obstruction.
  • Disperses focal accumulation and descends rebellious stagnation - older sources also use it for middle-jiao fullness, hiccup, or focal distention when stubborn obstruction rather than pure deficiency is the main issue.

Secondary Actions

  • Wei Ling Xian is often preferred when Bi pain is severe, fixed, and difficult to shift, especially if ordinary gentle wind-damp herbs have not opened the channels enough.
  • Its action is strong and somewhat consuming, so it is less suitable as a long-term daily herb for frail or depleted patients unless anchored by tonifying and blood-nourishing ingredients.

Classic Formulas

  • Shu Jing Huo Xue Wan (舒筋活血丸) - channel-relaxing and blood-invigorating formula pattern in which Wei Ling Xian helps open collaterals and relieve painful obstruction with blood stasis and wind-damp involvement.
  • Bi-syndrome decoctions with Du Huo, Qin Jiao, and Sang Zhi - common traditional pairing logic when cold-damp painful obstruction causes severe pain, numbness, or reduced range of motion in the limbs.
  • Single-herb or modified higher-dose use for fish bone lodged in the throat - a classic practical application in which Wei Ling Xian's acrid, salty, and mobile character is emphasized over its arthralgia role.

Classical References

  • Sacred Lotus describes Wei Ling Xian as acrid, salty, and warm, entering the Bladder channel, with key actions of dispelling wind-damp, opening the channels, relieving pain, treating stuck fish bones, and dispersing accumulation.
  • Yin Yang House similarly places Wei Ling Xian among the stronger wind-damp herbs, emphasizing pain, spasm, numbness, stiffness, and its use in Bi Zheng with severe obstruction.
  • Traditional teaching treats Wei Ling Xian as a forceful roaming herb: effective for stubborn obstruction, but to be used cautiously when Qi or Blood are deficient.

Modern Research

Active Compounds

  • Clematichinenoside AR and related triterpenoid saponins - the best-known anti-inflammatory marker constituents associated with Radix Clematidis research
  • Oleanolic-acid-type and hederagenin-type sapogenins - major pentacyclic triterpenoid backbones underpinning many of the herb's saponin fractions
  • Clematis total saponins - multi-component fractions repeatedly studied in rheumatoid-arthritis and inflammatory-joint models
  • Organic acids, lignanoids, and minor phenolic constituents - supportive compounds identified alongside the dominant saponin chemistry in modern review work

Studied Effects

  • A 2021 review of Clematidis Radix et Rhizoma summarized broad anti-inflammatory, anti-tumor, antimicrobial, and antioxidant findings while emphasizing triterpenoid saponins as the herb's principal modern pharmacologic drivers (PMID 33476714).
  • Clematis chinensis extract reduced inflammatory arthritis activity in collagen-induced rat models with effects linked to NF-kB, TNF-alpha, and COX-2 signaling, closely matching the traditional use of Wei Ling Xian for painful obstruction (PMID 21932136).
  • Processed Clematidis Radix et Rhizoma showed enhanced anti-rheumatoid-arthritis effects in collagen-II-induced rat studies, with improved cytokine and metabolomic outcomes supporting the long clinical importance of processing methods (PMID 35032583).
  • Total saponins of Radix Clematis were reported to regulate fibroblast-like synoviocyte proliferation in rheumatoid arthritis through the lncRNA OIP5-AS1/miR-410-3p/Wnt7b pathway, adding a more specific mechanistic model to the herb's anti-arthritic profile (PMID 35668775).

PubMed References

Safety & Interactions

Contraindications

  • Pregnancy or threatened miscarriage
  • Marked Qi or Blood deficiency without true obstructive pathology
  • Chronic weakness with dryness or depletion where a strong dispersing herb would be too consuming

Cautions

  • Extended or excessive use has been associated in traditional references with gastrointestinal irritation, oral burning or ulceration, vomiting, abdominal pain, and severe diarrhea
  • Topical overuse can irritate the skin and has been associated with blistering or allergic-type dermatitis
  • This is a strong mobile herb for stubborn obstruction, so it should be matched to an excess or mixed pattern rather than used casually for nonspecific aches
  • MSK page not found - drug interaction data not available from Memorial Sloan Kettering integrative medicine database

Conditions