Stems and woodsWind-damp dispellingTinosporae Sinensis Caulis

Kuan Jin Teng (Chinese Tinospora Stem)

A practical guide to Kuan Jin Teng: what it is, how Traditional Chinese Medicine uses it, the classical formulas it appears in, and who should be careful with it.

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Last reviewed Oct 28, 2026

Quick Facts

Latin Name	Tinosporae Sinensis Caulis
Chinese Name & Pinyin	寬筋藤 · Kuan Jin Teng
Medicinal Part	Stems and woods
The item	Kuan Jin Teng is the dried stem of a moonseed-family vine. Shen Jin Cao (club moss) and similar vine stems are not this drug.
Nature and channels	Neutral, bitter. Enters the Liver. Neutral bitter frees the channels, eases pain, relaxes the sinews, and eases spasm.
Pharmacopoeia line	Frees the channels and eases pain; relaxes the sinews and eases spasm. Used for sinew tightening, limb ache, stiff movement, and cramps.
Pattern cues	Stiff neck. Aching lower back and legs. Stiff movement. Calf cramps. Stiff fingers. Tight pulling in the tendons.
In this article	Kuan Jin Teng versus Shen Jin Cao. Freeing deep sinews versus warming the channels. Why yin-deficiency with fire and pregnancy should skip it. Home tea and hot wash.

What Is Kuan Jin Teng?

Kuan Jin Teng (宽筋藤; Kuān Jīn Téng; Latin: Tinosporae Sinensis Caulis; English: tinospora vine stem) is the dried stem of a moonseed-family twining vine — the gray-brown cut pieces with radiating lines on the break that mountain workers steep for a hot wash after a twisted ankle or a stiff neck. It is neutral, bitter, enters the Liver channel, and its core actions are to free the channels and ease pain, and to relax the sinews and ease spasm. It is the mountain helper for tight, aching limbs. The usual amount is 5–15 g in a decoction. It needs no special handling, and it steeps or decocts for a hot wash.

It is not Shen Jin Cao. Club moss is warm, bitter, and acrid — it warms and opens the channels, better for cold-sensitive joint pain; this stem is neutral and leans to freeing the deeper sinews of a local limb. It is not a tonic; it is a freeing herb with no supplementing side. In yin-deficiency with fire — a constant dry mouth — or in pregnancy, using it on your own is a poor match. Pain that keeps worsening, or a limb that cannot move, needs a clinic first. Do not take it yourself for a long time.

It is used most often for three patterns:

Stiff neck after long sitting, aching lower back and legs after strain, local pain with stiff movement — sinews bound by fatigue or wind-damp
Tight pulling in the tendons — calf cramps, stiff fingers, limbs stiff from one fixed posture — sinew spasm
Yin-deficiency with fire — a dry mouth, a red tongue without a coat — or pregnancy — skip it

Neutral and bitter, it is not a daily "channel-freedom herb tea" to keep drinking. Freeing when there is no obstruction, or in a weak body, drains the upright qi instead of helping.

When long sitting, overstrain, or wind-damp leaves the sinews tight, the limbs ache and stiffen — the neck, the lower back, the calves; when the tightness turns to spasm, pulling and cramps follow. Kuan Jin Teng is neutral and bitter. It frees the sinews and eases the spasm, which is why it appears in Song Jin Teng Tang (Sinew-Relaxing Vine Decoction)–type formulas. It moves more than it holds. In yin-deficiency with fire, in pregnancy, or without obstruction, more makes it worse.

Kuan Jin Teng is not a catch-all channel or pain herb. In yin-deficiency with fire, in pregnancy, in a weak body, or with no obstruction, using it alone is a poor match. Whether it belongs in a formula, and at what dose, should be decided by a licensed Chinese medicine practitioner after pattern diagnosis.

Kuan Jin Teng: Materia Medica Profile

Identification & Quality Standard

Tinosporae Sinensis Caulis

Botanical Origin

The dried vine stem of Tinospora sinensis (Lour.) Merr. (Menispermaceae).

Production Regions

Primarily produced in the Chinese provinces of Guangdong, Guangxi, Hunan, Yunnan.

Quality Requirements

Superior medicinal material is thick, yellowish-brown, and solid.

Macroscopic Features

Cylindrical, often cut into segments or thick slices, 3~10cm long, 0.5~2cm diameter. Externally brownish-yellow or grayish-brown, with longitudinal wrinkles and lenticels, scattered with raised nodes. Hard; cut surface is grayish-white, with radial vessels and medullary rays, center with small pith. Faint odor, taste slightly bitter.

Main Regions and Quality Identification

Classic texts and trade experience favor stems from several southern provinces, but quality still depends on variety, harvest time, processing, and storage — stems from different areas differ slightly in thickness and weight. The raw stem is cut cylindrical sections, gray-brown on the surface, with radiating lines on the break and a slightly bitter smell; processed sections keep the basic features with fewer impurities. The common look-alike is another moonseed-family vine — with different break lines and a fainter smell — check carefully.

Traditional Properties & Historical Lineage

Nature, Flavour & Channel Tropism

Bitter; CoolLiver

1. Records in Classic Materia Medica

Ben Cao Gang Mu Shi Yi: notes it "is used for wind-damp bi pain and sinew spasm."
De Pei Ben Cao: records it "enters the Foot-Jueyin channel, relaxes the sinews, and disperses wind-damp."
Zhong Hua Ben Cao: adds its use for sinew discomfort after falls and bruises.

2. How Views of Its Nature Changed

Some doctors leaned on the freeing side — for excess-type sinew tightness from strain or wind-damp; others noted its calm nature — freeing without wearing down the upright qi, pairable with tonics for deficiency with sinew discomfort; still others drew the line — better for local limb sinew issues than whole-body channel blockage, so it is not a universal channel herb.

Core Efficacies & Traditional Applications

Traditional Functions

Relaxes sinews and unblocks collaterals, expels wind and stops pain.

1. Main Use 1: Freeing the Channels and Easing Pain

(1) Traditional action: freeing the limb sinews and easing pain. (2) Typical patterns: tight sinews, aching joints, stiff movement — a stiff neck after long sitting, aching lower back and legs after strain, local pain after falls. (3) Usual pairings: Du Huo (pubescent angelica) and Wei Ling Xian (clematis) for wind-damp pain; Sang Zhi (mulberry twig) and Ji Xue Teng (spatholobus) for strain-related discomfort. (4) Not for self-use: pregnancy — the freeing may carry a potential effect on the fetus — and weak bodies with long diarrhea, lest over-freeing drains the upright qi.

2. Main Use 2: Relaxing the Sinews and Easing Spasm

(1) Traditional action: relaxing tight sinews and easing the contracted state. (2) Typical patterns: contracted sinews with a pulling feel on movement — calf cramps, stiff fingers, or limbs stiff after one fixed posture. (3) Usual pairings: Bai Shao (white peony) and Gan Cao (licorice) to strengthen the relaxing. (4) Not for self-use: yin-deficiency with fire — a dry mouth — the bitter, drying nature can worsen the dryness and heat.

3. A Classic Pairing

Kuan Jin Teng pairs classically with Sang Zhi: the vine frees the deep sinew obstruction; the mulberry twig frees the shallow limb channels. Together they strengthen the channel-freeing — for limb ache and stiff movement from wind-damp or strain. This pair belongs to a practitioner's pattern diagnosis — doses and partners adjusted to the pattern, no self-pairing.

Modern Research

Modern research offers useful context, but Traditional Chinese Medicine prescribes on whole-pattern diagnosis rather than isolated compounds.

1. Main Chemical Constituents

Detected in the stem are alkaloids, flavonoids, and terpenoids — the main chemical base. In vitro, some alkaloids affect inflammation-related enzyme activity; in animals, extracts reduce limb swelling from inflammation at certain doses. No human clinical study of Kuan Jin Teng has been published — conclusions on its effects in people are lacking.

2. Current Research Directions

Current work centers on extracting and screening the active components, and observing effects on limb-discomfort markers in animal models. Extracts appear to ease limb stiffness in animals — not equal to human effect; human verification is still needed.

3. Limitations of Current Research

Lab results are not clinical efficacy — animal observations do not copy to people.
Extracts are not decoction pieces — experimental extract doses far exceed daily piece doses.
Doses and preparations vary between studies — results cannot be unified.
One component does not define the whole herb — the stem acts as a team of constituents.

Comparing Similar Herbs

1. What They Share

Both free the sinews and channels.
Both are used for tight aching limbs and appear in simple limb-care remedies.
Both need constitution and dose care — no overuse.

2. Key Differences

Nature and flavor: Kuan Jin Teng is neutral and bitter — freeing, no marked tonifying; Shen Jin Cao is warm, bitter and acrid — warm-opening with a warm-scattering side. Focus: Kuan Jin Teng frees deeper sinew obstruction — more marked for local ache and stiffness; Shen Jin Cao warms and opens the channels — more marked for wind-damp joint bi pain and stiff bending. Tendency: Kuan Jin Teng descends — guiding the force down to the limb sinews without raising yang; Shen Jin Cao rises and scatters — freeing while moving the body's yang, better for cold-leaning limb discomfort. Best fit: Kuan Jin Teng for local sinew tightness — post-sitting neck stiffness, post-strain lower-back and leg ache, without marked chills; Shen Jin Cao for aching joints with chills — pain worse in cold, such as winter joint pain. Who should avoid: Kuan Jin Teng is wrong for yin-deficiency with fire and a dry mouth; Shen Jin Cao is wrong for heat constitutions — a constant dry mouth and sore throat — its warmth can add to the heat. Where you meet them: Kuan Jin Teng as a partner in local-limb formulas and simple hot washes; Shen Jin Cao as a lead in wind-damp bi formulas and warm food remedies.

3. One-Line Takeaway

In short, Kuan Jin Teng frees the deeper sinews; Shen Jin Cao warms and opens the channels. Both can appear in limb-sinew care — but they are not stand-ins for each other.

Classical Formulas Containing Kuan Jin Teng

Classic Formula 1: Song Jin Teng Tang

Role of this herb: in Song Jin Teng Tang (Sinew-Relaxing Vine Decoction), Kuan Jin Teng is a minister — the main channel-freeing herb — with Du Huo and Wei Ling Xian dispelling wind-damp. The target is wind-damp bi with tight sinews; alone, the vine cannot also dispel the wind-damp pathogen. Traditional focus: wind-damp bi pain, sinew spasm, stiff limb movement. Modern note: professional diagnosis first — never self-apply by name.

Classic Formula 2: Shu Jin Huo Xue Tang

Role of this herb: in Shu Jin Huo Xue Tang (Sinew-Relaxing Blood-Moving Decoction), Kuan Jin Teng is a supporting herb — relaxing the tight sinews — with Hong Hua (safflower) and Tao Ren (peach kernel) moving blood. The target is post-fall sinew injury with local swelling and pain; alone, the vine cannot also move the blood stasis. Traditional focus: falls and bruises — sinew injury, local swelling and pain. Modern note: professional diagnosis first — never self-apply by name.

Formula vs. Single Herb

A formula is a coordinated team — covering the main and the supporting issues at once; a single herb cannot copy a full formula's effect. The doses and pairings are designed as a whole — changing any one herb shifts the whole. A herb that works in a formula does not automatically work the same way alone — do not self-formulate from web articles.

Diet & Daily Home Use

1. Home Tea and Hot Wash

Example 1 — Kuan Jin Teng mulberry twig tea: Kuan Jin Teng 5 g, Sang Zhi 5 g — rinse, steep in a thermos 15 minutes. Fit: post-sitting neck stiffness and mild lower-back and leg ache, without marked chills or dryness. Not for: pregnancy, yin-deficiency with fire — a constant dry mouth, a red tongue without a coat. Frequency: 2–3 times a week, not long-term. Example 2 — Kuan Jin Teng hot wash: Kuan Jin Teng 10 g, Gui Zhi (cinnamon twig) 5 g — decoct 20 minutes, pour into a basin, wash the spot while warm. Fit: local ache and stiffness — soothing after calf cramps. Not for: broken or irritated skin. Frequency: once a day, 10–15 minutes, 3–5 days.

2. Decoction and Processing Differences

The raw stem leans to freeing the sinews — for daily care; no special processed form exists. At home, it is an ordinary herb — no special handling, decoct with the other herbs. Different forms cannot be converted directly — a piece dose is not a ready-made medicine dose; a tea amount is not a decoction amount.

3. Dosage and How Long to Use

The classic range is 5–15 g — smaller for daily care, larger for channel-freeing; food-use amounts are about half to a third of medicinal doses. Not for long continuous use — stop when the symptom settles; for longer care, ask a practitioner. The elderly and children use reduced doses; pregnancy is excluded.

Contraindications & Safety Warnings

1. Who Should Avoid It

Pregnancy and nursing — the freeing may carry a potential effect on the fetus or infant; yin-deficiency with fire — a constant dry mouth, a red tongue without a coat — the bitter-drying can worsen the dryness; weak bodies with long diarrhea — be cautious, lest over-freeing drains the upright qi; liver or kidney impairment — practitioner-guided use; allergy to moonseed-family plants — avoid.

2. Interactions and Diet Notes

Kuan Jin Teng may interact with anticoagulant, blood-pressure, and sedative medicines — possibly strengthening an anticoagulant or affecting blood-pressure medicine; anyone on them should consult a doctor or pharmacist first. No blanket "food clash" with ordinary foods is established, but herbs can interact with specific medicines — check before use.

3. Side Effects and Overuse

Reactions are usually few; overuse can bring a dry mouth, nausea, and diarrhea. Stop and seek care at once for marked discomfort, an allergic reaction such as rash or itching, persistent vomiting, trouble breathing, confusion, or a rapid worsening of symptoms.

Frequently Asked Questions About Kuan Jin Teng

What is Kuanjinteng? Is it the same as Jixueteng or Luoshiteng?

Kuanjinteng is the dried vine stem of Tinospora sinensis, Latin name Tinosporae Sinensis Caulis. It is a common Chinese medicine centered on relaxing the sinews and activating the collaterals, and dispelling wind and relieving pain. Jixueteng activates blood and tonifies blood while unblocking collaterals. Luoshiteng dispels wind and unblocks collaterals while cooling the blood. They cannot be used interchangeably in equal amounts. Prescribe as Kuanjinteng. Use with caution in pregnancy.

What are the composition and effects of Kuanjinteng?

Pharmacopoeial name Kuanjinteng, Latin Tinospora sinensis (Lour.) Merr. Slightly bitter in taste, cool in nature, enters the Liver meridian. Functions to relax the sinews and activate the collaterals, and dispel wind and relieve pain. Used for wind-damp bi pain, sinew and vessel contracture, soreness and pain of the waist and knees, and traumatic injuries. Relaxes the sinews and relieves pain.

How to choose between raw and processed? Can Jixueteng replace it?

Vine stem is used raw. Jixueteng emphasizes tonifying blood rather than strongly relaxing the sinews, and cannot replace it in equal amounts. Commercial products are standardized; do not adjust arbitrarily.

What is the dosage of Kuanjinteng? Can it be used daily as a sinew-relaxing tea?

Decoction, 9-15g. Modern use requires physician-determined dosage. It is not a year-round "Kuanjinteng tea." Pregnancy will be further injured by prolonged use. Bi pain requires short-term, physician-determined dosage and cannot replace evaluation.

What are the contraindications of Kuanjinteng? Can pregnant women use it?

Use with caution in pregnancy. Not suitable without wind-damp. Stop if bleeding or abdominal pain occur. Seek immediate medical care for severe bi pain or high fever.

Can Kuanjinteng relax the sinews, activate the collaterals, and relieve pain?

It can assist wind-damp bi pain, sinew and vessel contracture, soreness and pain of the waist and knees, and traumatic injuries. It relaxes the sinews and activates the collaterals, and dispels wind and relieves pain, but is not a specific remedy for all bi pain or all trauma.

Can Kuanjinteng be taken daily as a sinew-relaxing or pain-relieving tea?

Wind-damp bi pain can be used short-term in formulas; pregnancy will be further injured. The idea that "Kuanjinteng must relax the sinews" cannot replace evaluation. Relaxing the sinews and relieving pain requires physician-determined formulation and dosage.

How to choose between Kuanjinteng, Jixueteng, Luoshiteng, Haifengteng, and Shenjincao?

Kuanjinteng relaxes the sinews and relieves pain, suited to bi pain. Jixueteng activates blood and tonifies blood. Luoshiteng dispels wind and unblocks collaterals. Haifengteng dispels wind-damp and unblocks collaterals. Shenjincao dispels wind and eliminates dampness while relaxing the sinews. Choose Kuanjinteng for relaxing the sinews; Jixueteng for tonifying blood; Luoshiteng for unblocking collaterals; Haifengteng for dispelling wind; Shenjincao for eliminating dampness. Pattern differentiation applies, but use with caution in large doses during pregnancy.

How is Kuanjinteng commonly modified? What is a representative usage?

Modifications depend on the pattern. Add Jixueteng for bi pain; add Shenjincao for contracture. Specify Kuanjinteng; do not substitute Jixueteng in equal amounts for relaxing the sinews.

How to select and store Kuanjinteng?

Choose regular Chinese medicinal materials with intact vine stems. Discard if moldy, damp, or abnormal in odor. Store in a dry place. Purchase "Kuanjinteng"; do not substitute Jixueteng or Luoshiteng in equal amounts for relaxing the sinews, activating the collaterals, and relieving pain.

Related Products

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Hoi Tin Kuan Jin Teng (Tinospora Stem) Single Herb 15:1 Concentrated Granules $34.13

Medical Disclaimer — This article is provided for educational purposes only and describes traditional Chinese medicine concepts. It is not medical advice, and it is not intended to diagnose, treat, cure or prevent any disease. Always consult a qualified practitioner before using any herb, particularly if you are pregnant, nursing, taking medication or managing a diagnosed condition.