Herb

Wei Ling Xian

Clematis root | 威灵仙

Also known as:

Clematis Root

Wei Ling Xian

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Properties

Wind-Damp dispelling herbs (祛风湿药) · Warm

Traditionally supports*

Joint and Muscle Pain Relief Mobility and Flexibility Bone and Joint Health Digestive Health

Parts Used

Root (根 gēn)

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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About This Herb

Traditional Chinese Medicine background and properties

Herb Description

Wēi Líng Xiān is one of the most widely used herbs for joint and muscle pain caused by wind and dampness. It is known for its powerful ability to move through all the body's channels and relieve stubborn pain, stiffness, and numbness. It also has a unique traditional use for dissolving fish bones stuck in the throat.

Herb Category

Wind-Damp dispelling herbs (祛风湿药)

Main Actions

  • Dispels Wind-Dampness
  • Unblocks the Channels and Alleviates Pain
  • Softens and dissolves bone (treats fish bone lodged in the throat)
  • Resolves Phlegm and Disperses Accumulation

How These Actions Work

'Dispels Wind-Dampness' means Wēi Líng Xiān drives out the pathogenic factors Wind and Dampness that settle in the joints, muscles, and channels. In TCM, when Wind and Dampness invade the body, they cause what is called Bì syndrome (painful obstruction), leading to joint pain, stiffness, heaviness, and swelling. Wēi Líng Xiān is especially valued because it is said to "travel through all twelve channels" (宣通十二经络), meaning it can reach pain anywhere in the body rather than being limited to one region. This makes it particularly suited for wandering joint pain that moves from place to place.

'Unblocks the channels and alleviates pain' refers to the herb's ability to open up blocked pathways of Qi and Blood circulation in the body. When the channels are obstructed by Wind, Dampness, Cold, or Phlegm, pain and numbness result. Wēi Líng Xiān's pungent and warm nature gives it a forceful, penetrating quality that pushes through these blockages, restoring flow and relieving pain. Classical texts describe it as having a "fierce and urgent nature" (性猛急) that "moves without stopping" (走而不守).

'Softens and dissolves bone' is a distinctive action referring to Wēi Líng Xiān's traditional use for fish bones or other small bones stuck in the throat. A decoction of the herb, often combined with rice vinegar, is slowly sipped to help soften and dislodge the bone. Modern pharmacological research has shown that Wēi Líng Xiān can relax smooth muscle in the esophagus, which may help explain this effect.

'Dissolves Phlegm and disperses accumulations' reflects the herb's ability to break down Phlegm-Dampness and other stubborn accumulations in the body. Classical texts note its use for conditions like abdominal masses, retained Phlegm-fluid, and even difficulty swallowing due to Phlegm blockage. This action extends from its general channel-opening and obstruction-clearing nature.

Patterns Addressed

In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Wei Ling Xian is traditionally associated with these specific patterns.

The following describes this herb's classification within Traditional Chinese Medicine theory and is provided for educational purposes only.

Why Wei Ling Xian addresses this pattern

Wind-Cold-Damp Bì (painful obstruction) occurs when Wind, Cold, and Dampness invade the channels and joints, blocking the flow of Qi and Blood. Wēi Líng Xiān directly addresses this pattern through multiple mechanisms: its pungent taste disperses Wind, its warm nature counteracts Cold, and its salty taste helps dissolve Dampness and soften hardness. Because it is said to penetrate all twelve channels, it is especially effective when the pain moves around the body (a hallmark of Wind involvement) or settles in the lower back and legs (where Dampness tends to accumulate). It is one of the first herbs considered for stubborn Bì syndrome that does not respond to milder treatments.

A practitioner would look for one or more of these signs

Moving Pain

Wandering or fixed joint pain aggravated by cold and damp weather

Numbness In Limbs

Numbness and heaviness in the extremities

Lower Back Pain

Cold pain in the lower back and knees

Limited Range Of Motion

Difficulty bending and stretching the joints

TCM Properties

Temperature

Warm

Taste

Acrid / Pungent (辛 xīn), Salty (咸 xián)

Channels Entered
Urinary Bladder
Parts Used

Root (根 gēn)

This is partial information on the herb's TCM properties. More detailed information is available on the herb's dedicated page

Product Details

Manufacturing, supplier, and product specifications

Product Type

Granules

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Botanical & Sourcing

Quality Indicators

Good quality Wei Ling Xian root should have thick, firm roots that are relatively uniform in size, with a dark brown to black-brown outer surface showing fine longitudinal striations. The cross-section should show a broad cortex (bark layer) and a pale yellowish wood core that is roughly square-shaped, with a clear gap between cortex and wood. The rhizome portion should be short with minimal remaining stem base. Roots that are solidly textured and break cleanly (hard and brittle) are preferred over those that are soft, hollow, or excessively thin. The herb should have a faint smell and a bland taste when dried (though the fresh root has a distinctly acrid, peppery bite). Avoid material that is mouldy, excessively fragmented, or mixed with excessive stem and leaf debris.

Primary Growing Regions

The primary producing regions are Anhui, Jiangsu, Zhejiang, and Jiangxi provinces in eastern China. Shandong, Sichuan, Guangdong, and Fujian also produce significant quantities. The herb is widely distributed across southern and central China, as well as Taiwan, northern Vietnam, and the Ryukyu Islands of Japan. Within China, Clematis chinensis grows at elevations from 80 to 1500 metres across Guangxi, Guangdong, Guizhou, Yunnan, Hubei, Hunan, Shaanxi, Henan, and other provinces. The northeastern species (C. manshurica) is mainly produced in Heilongjiang, Jilin, Liaoning, and Shandong. No single region has established a dominant 'terroir' (道地药材) reputation for this herb in the way that applies to some other medicinals, but Anhui and Jiangsu material has traditionally been considered representative.

Harvesting Season

Autumn. The roots and rhizomes are dug up in autumn, cleaned of soil and debris, and dried in the sun.

Supplier Information

Treasure of the East

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Miscellaneous Info

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Usage & Safety

How to use this herb and important safety information

Important Medical Disclaimer

The information provided here is for educational purposes only and is not intended as medical advice or to replace consultation with a qualified healthcare professional. This herb is a dietary supplement and has not been evaluated by the FDA. It is not intended to diagnose, treat, cure, or prevent any disease.

Always consult with a qualified healthcare provider, particularly if you are pregnant, nursing, have a medical condition, or are taking other medications. Discontinue use and consult your healthcare provider if you experience any adverse reactions.

Recommended Dosage

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Traditional Dosage Reference

Standard

6–15g

Maximum

Up to 30g in acute bone-stuck-in-throat (骨鲠) situations with vinegar, under practitioner supervision. Standard therapeutic use should not exceed 15g.

Notes

For general Wind-Damp pain and channel obstruction, the standard dose of 6–10g in decoction is sufficient. For more stubborn or chronic joint pain (顽痹), doses of 10–15g may be used. For treating bone stuck in the throat (骨鲠咽喉), a larger dose of 15–30g is traditionally decocted with rice vinegar and sugar, then sipped slowly. When used for dissolving Phlegm accumulations or treating abdominal masses, moderate doses of 9–12g are typical. Wine-processed Wei Ling Xian (酒灵仙) is preferred for enhancing its channel-opening and pain-relieving effects, especially for hip and lower back pain. The herb should not be used continuously for extended periods. As Li Shizhen cautioned, prolonged use risks damaging true Qi, so treatment courses should be kept concise.

Processing Methods

Processing method

The raw herb segments are mixed evenly with rice wine (huáng jiǔ), left to absorb the wine until thoroughly moistened, then stir-fried over low heat until dry. The standard ratio is approximately 12-15 kg of rice wine per 100 kg of herb.

How it changes properties

Wine processing enhances the herb's ability to disperse Cold and unblock the collaterals. The wine acts as a guide that increases the herb's penetrating power into the channels, particularly for treating pain in the lower back and hips. Research suggests wine-processed Wēi Líng Xiān has superior anti-inflammatory and analgesic effects compared to the raw form. The thermal nature remains warm but becomes more directed toward the channels and Blood level.

When to use this form

Preferred for stubborn Wind-Cold-Damp Bì syndrome, especially with pain concentrated in the lower back, hips, or deep in the joints. Also the form of choice when stronger channel-penetrating action is needed. The wine processing also helps reduce the herb's potential to irritate the stomach.

Toxicity Classification

Slightly toxic

The whole plant contains irritant compounds, primarily protoanemonin (derived from ranunculin), anemonin, and various triterpene saponins including clematichinenoside. The saponins are irritating to the gastrointestinal tract. Ingestion of excessive amounts can cause nausea, vomiting, abdominal pain, diarrhea, dizziness, and in severe cases oral burning, difficulty swallowing, dilated pupils, and cold extremities. Skin contact with the fresh plant can cause contact dermatitis with blistering. At standard decoction doses (6–15g of dried, processed root), the herb is considered safe for short-term use. Processing methods such as wine-frying (酒制) reduce the irritant components while enhancing its channel-opening properties. The herb should not be taken continuously for prolonged periods, as its strongly dispersing nature can deplete the body's Qi over time. Treatment courses are generally recommended not to exceed two weeks without reassessment.

Contraindications

Avoid

Blood deficiency causing tendon and bone pain, cramping, or stiffness (血虚而致的筋骨拘挛疼痛). This herb is strongly dispersing and moving. When the underlying cause is Blood deficiency rather than external pathogenic factors, Wei Ling Xian will further deplete Blood and worsen symptoms.

Avoid

Pregnancy. The herb has a strong moving and penetrating nature that could potentially disturb the fetus. Classical texts explicitly list pregnant women among those who should avoid this herb.

Caution

Qi deficiency and Blood weakness (气虚血弱). The herb's powerful dispersing action can further deplete the body's vital substances in already weakened individuals. As the Ben Cao Yan Yi warns, excessive use 'disperses the true Qi of the five Zang organs.'

Caution

Yin deficiency with Heat (阴虚有热). The warm, dispersing nature of this herb can aggravate Heat signs in Yin-deficient patients.

Caution

Conditions without Wind-Cold-Damp pathogenic factors. When pain or stiffness is not caused by external Wind, Cold, or Dampness, using this herb is inappropriate and may cause harm. The Ben Cao Jing Shu states it should not be used when the condition is not due to Wind-Dampness.

Caution

Exterior deficiency with sweating (表虚有汗). The herb's dispersing nature can worsen exterior deficiency and excessive sweating.

Avoid

Known allergy to Clematis species or Ranunculaceae family plants. Fresh plant material and root can cause contact dermatitis in sensitive individuals.

Special Populations

Pregnancy

Contraindicated during pregnancy. Classical texts explicitly list pregnancy as a contraindication. Wei Ling Xian has a powerful coursing, penetrating nature (性走窜) that moves strongly through the channels and can potentially disturb the fetus. The saponin compounds in the herb have demonstrated effects on smooth muscle, including possible uterine stimulation. The herb should be strictly avoided throughout pregnancy.

Breastfeeding

Safety during breastfeeding has not been well established. The herb contains saponins and protoanemonin-related compounds that could theoretically transfer into breast milk. Given its irritant potential on the gastrointestinal tract and the sensitivity of nursing infants, Wei Ling Xian should be used with caution during breastfeeding and only under the guidance of a qualified practitioner. If used, the lowest effective dose for the shortest duration is advisable, and the infant should be monitored for any signs of gastrointestinal upset.

Pediatric Use

Wei Ling Xian should be used with great caution in children due to their lower tolerance for its irritant saponin compounds. It is generally not recommended for young children. If prescribed by a qualified practitioner for older children, the dosage should be significantly reduced (typically no more than 3g per day) and the treatment course should be kept as short as possible (no more than 3 days). The child should be closely monitored for any signs of nausea, vomiting, or abdominal discomfort, and the herb should be stopped immediately if any adverse reactions occur.

Drug Interactions

No well-documented pharmaceutical drug interactions have been established through formal clinical studies. However, based on its known pharmacological properties, the following theoretical interactions warrant caution:

  • Anticoagulant and antiplatelet drugs: Wei Ling Xian promotes Blood circulation and has demonstrated anti-inflammatory effects that may overlap with anticoagulant mechanisms. Concurrent use with warfarin, heparin, or antiplatelet agents should be monitored.
  • Hypoglycaemic agents: Animal studies suggest the herb may have blood sugar-lowering effects. Patients on insulin or oral hypoglycaemics should monitor blood glucose more closely if taking this herb.
  • Antihypertensive drugs: Pharmacological research has shown a blood pressure-lowering effect, so additive hypotension is theoretically possible when combined with antihypertensive medications.
  • Diuretics: Interestingly, the herb has demonstrated antidiuretic properties in animal studies, which could potentially counteract diuretic medications.

Patients taking any regular pharmaceutical medications should consult both their prescribing doctor and a qualified TCM practitioner before using Wei Ling Xian.

Dietary Advice

Avoid drinking tea while taking Wei Ling Xian, as multiple classical formulas specifically note this incompatibility (忌茶). Some classical sources also advise avoiding wheat flour foods (忌面). Since the herb is warm and dispersing in nature, it is best complemented by a diet that avoids excessively cold or raw foods when being used for Wind-Cold-Damp conditions. Patients with weak digestion should ensure adequate nourishing foods to counterbalance the herb's draining properties.

Cautions & Warnings

Although this formula is typically safe for most individuals, it may cause side effects in some people. Pregnant women, nursing mothers, postpartum women, and those with liver disease should use the formula with caution.

As with any Chinese herbal remedy, it is advisable to seek guidance from a qualified TCM practitioner before beginning treatment.