Herb Root (根 gēn)

Dang Shen

Codonopsis root · 党参

Codonopsis pilosula (Franch.) Nannf. · Radix Codonopsis

Also known as: Pilose Asiabell Root

Dang Shen (Codonopsis root) plant

Images shown are for educational purposes only

Codonopsis root is one of the most widely used tonic herbs in Chinese medicine, often described as a gentler and more affordable alternative to Ginseng. It strengthens digestion, builds Qi and Blood, and helps generate body fluids, making it a go-to herb for fatigue, poor appetite, shortness of breath, and general weakness. It is mild enough for long-term use and is commonly added to soups and stews as a nourishing food.

Category Qi-tonifying herbs (补气药)
Therapeutic focus Digestive Health Fatigue and Low Energy Immune Support Blood health

TCM Properties

Temperature

Neutral

Taste

Sweet (甘 gān)

Channels entered

Spleen, Lungs

Parts used

Root (根 gēn)

Available in our store
View in Store
From $23.00

Educational content • Consult qualified TCM practitioners for diagnosis and treatment

What This Herb Does

Every herb has a specific set of actions — here's what Dang Shen does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Dang Shen is primarily used to support these areas of health:

Digestive Health Fatigue and Low Energy Immune Support Blood health

TCM Actions

In TCM terminology, these are the specific therapeutic actions that Dang Shen performs to restore balance in the body:

Tonifies the Middle and Augments Qi Strengthens the Spleen Tonifies Lung Qi Nourishes Blood Generates Fluids

How these actions work

'Tonifies the middle and augments Qi' means Dǎng Shēn strengthens the Spleen and Stomach, the digestive organs that TCM considers the root source of Qi and Blood for the whole body. When someone feels chronically tired, has a poor appetite, or experiences loose stools, it often points to weak Spleen Qi. Dǎng Shēn's sweet, neutral nature gently replenishes this Qi without being too warming or drying, which is why it is suitable for mild to moderate deficiency and for long-term use.

'Benefits the Lungs' means this herb supports the Lung's ability to manage breathing and the body's surface defenses. A person with Lung Qi deficiency may speak in a weak voice, get short of breath easily, or be prone to catching colds. Dǎng Shēn enters the Lung channel and reinforces this function.

'Nourishes Blood' reflects the TCM principle that strong Qi is the foundation for Blood production. Since the Spleen transforms food into the raw material for Blood, strengthening Spleen Qi with Dǎng Shēn indirectly supports Blood formation. This is why it is used for pallor, dizziness, and palpitations due to combined Qi and Blood deficiency.

'Generates Fluids' means Dǎng Shēn can help restore body fluids that have been depleted by fever, sweating, or chronic illness. When someone has a dry mouth, thirst, or signs of dehydration alongside fatigue, the raw (unprocessed) form of Dǎng Shēn is particularly well suited because it moistens without being cloying.

Patterns Addressed

In TCM, symptoms cluster into recognizable patterns of disharmony. Dang Shen is used to help correct these specific patterns.

Why Dang Shen addresses this pattern

Dǎng Shēn's sweet taste and neutral temperature directly tonify the Spleen, the organ responsible for transforming food and drink into Qi and nutrients. In Spleen Qi Deficiency, the digestive system is weak and unable to properly extract nourishment, leading to fatigue, poor appetite, and loose stools. Dǎng Shēn gently replenishes Spleen Qi, restoring the organ's transporting and transforming functions. Its neutral nature means it does not add unwanted Heat or Dryness, making it especially safe for long-term use in chronic Spleen deficiency.

A practitioner would look for one or more of these signs

Eye Fatigue

Persistent tiredness and lack of energy

Poor Appetite

Reduced desire to eat

Loose Stools

Soft, unformed bowel movements

Abdominal Pain

Distension after eating

Commonly Used For

These are conditions where Dang Shen is frequently used — but only when they arise from the specific patterns it addresses, not in all cases

Arises from: Spleen Qi Deficiency Qi and Blood Deficiency

TCM Interpretation

TCM views chronic fatigue primarily as a problem of insufficient Qi, most often rooted in a weakened Spleen. The Spleen is responsible for extracting Qi from food, so when it underperforms, the whole body's 'fuel supply' drops. Fatigue may also stem from combined Qi and Blood deficiency, where not only is the body's functional power low, but the nourishing substance (Blood) that sustains the muscles and organs is also depleted. Contributing factors include poor diet, overwork, chronic illness, and excessive worry, all of which damage the Spleen over time.

Why Dang Shen Helps

Dǎng Shēn directly addresses the root of fatigue by tonifying Spleen Qi, restoring the body's ability to extract nourishment from food and generate both Qi and Blood. Its sweet, neutral nature makes it gentle enough for the weakened digestive system that often accompanies chronic fatigue. Unlike Rén Shēn (Ginseng), which is stronger but more warming and expensive, Dǎng Shēn can be used safely at higher doses over longer periods. Its simultaneous ability to generate fluids also addresses the dehydration and dryness that often accompany prolonged exhaustion.

Also commonly used for

Poor Appetite

Reduced appetite due to weak digestion

Gastric Ulcer

Peptic ulcer disease with digestive weakness

Chronic Diarrhea

Loose stools from Spleen deficiency

Shortness Of Breath

Dyspnoea from Lung Qi deficiency

Palpitations

Heart palpitations from Qi and Blood deficiency

Rectal Prolapse

Organ prolapse due to sinking middle Qi

Diabetes

Used for the 'internal heat and thirst' (消渴) presentation

Low Blood Pressure

Hypotension associated with Qi deficiency

Herb Properties

Every herb has an inherent temperature, taste, and affinity for specific channels — these properties determine how it interacts with the body

Temperature

Neutral

Taste

Sweet (甘 gān)

Channels Entered

Spleen Lungs

Parts Used

Root (根 gēn)

Dosage & Preparation

These are general dosage guidelines for Dang Shen — always follow your practitioner's recommendation, as dosages vary based on the formula and your individual condition

Standard dosage

9-30g

Maximum dosage

Up to 60g in severe Qi deficiency or chronic debilitating conditions, under practitioner supervision. At standard dosages, no toxicity concerns exist.

Dosage notes

Use lower doses (9-15g) when Dang Shen serves as a supporting herb in a formula, for example to gently supplement Spleen Qi alongside other herbs addressing the primary pattern. Use moderate to higher doses (15-30g) when Dang Shen is the principal Qi-tonifying herb, such as in chronic fatigue, prolonged illness with Qi and Blood deficiency, or as a substitute for Ren Shen in classical formulas (where the original may call for 3-10g of ginseng, the Dang Shen equivalent is typically 2-3 times that amount due to its milder potency). For generating fluids (生津), raw (unprocessed) Dang Shen is preferred. For strengthening Spleen function, rice-fried (米炒) or honey-prepared Dang Shen is traditionally considered more effective. Excessive doses in individuals with Yin deficiency and Heat may occasionally cause mild dryness of the mouth or a sensation of internal warmth.

Preparation

No special decoction handling is required. Dang Shen is decocted normally with other herbs. It may be sliced into thick pieces before decocting for better extraction.

Processing Methods

In TCM, the same herb can be prepared in different ways to change its effects — here's how processing alters what Dang Shen does

Processing method

Dǎng Shēn slices are mixed with refined honey diluted in a small amount of water, left to absorb until saturated, then stir-fried over low heat until the surface turns yellowish-brown and is no longer sticky. The typical ratio is 20 kg of honey per 100 kg of herb slices.

How it changes properties

Honey-processing enhances the Qi-tonifying and middle-nourishing action while adding a moistening, Yin-nourishing quality. The thermal nature remains neutral to slightly warm. The honey coating makes the herb less likely to cause dryness and better at addressing both Qi and Blood deficiency. Modern research suggests honey-processed Dǎng Shēn has stronger immunostimulant and anti-fatigue effects than the raw form.

When to use this form

Preferred when the primary goal is to tonify Spleen Qi and benefit the Lungs, especially in Qi and Blood deficiency with symptoms like fatigue, organ prolapse, scanty menstruation, or general weakness. This is the standard form used in most tonifying prescriptions.

Common Herb Pairs

These ingredients are traditionally combined with Dang Shen for enhanced therapeutic effect

Huang Qi
Huang Qi 1:1 to 1:2 (Dǎng Shēn 10-15g : Huáng Qí 15-30g)

Dǎng Shēn strengthens the Spleen and tonifies Qi from the middle, while Huáng Qí augments Qi and raises Yáng. Together they produce a more powerful Qi-tonifying effect than either alone, addressing both the generation of Qi (Spleen) and its upward, outward distribution (Lung and surface). This pairing also benefits the Lungs, as both herbs enter the Lung channel.

When to use: Spleen and Lung Qi deficiency with shortness of breath, fatigue, weak voice, poor appetite, or spontaneous sweating. Also for sinking of middle Qi with organ prolapse or chronic diarrhoea.

Bai Zhu
Bai Zhu 1:1 (Dǎng Shēn 10g : Bái Zhú 10g)

Dǎng Shēn tonifies Spleen Qi while Bái Zhú strengthens the Spleen and dries Dampness. This combination amplifies the Qi-tonifying and Dampness-resolving effects on the Spleen. Dǎng Shēn provides the 'fuel' (Qi) while Bái Zhú addresses the 'clogging' (Dampness) that often accompanies Spleen weakness.

When to use: Spleen Qi deficiency with prominent Dampness signs: poor appetite, loose stools, abdominal bloating, and a feeling of heaviness.

Dang Gui
Dang Gui 1:1 (Dǎng Shēn 10-15g : Dāng Guī 10g)

Dǎng Shēn tonifies Qi while Dāng Guī nourishes and invigorates Blood. This pairing embodies the principle that Qi and Blood are mutually dependent: strong Qi helps generate Blood, while abundant Blood anchors Qi. Together they treat both sides of a Qi-and-Blood deficiency simultaneously.

When to use: Combined Qi and Blood deficiency presenting as fatigue, pallor, dizziness, palpitations, and scanty or delayed menstruation.

Tian Men Dong
Tian Men Dong 1:1 (Dǎng Shēn 10-15g : Mài Mén Dōng 10-12g)

Dǎng Shēn tonifies Qi and generates fluids, while Mài Mén Dōng nourishes Yin and moistens the Lungs. Together they address the dual loss of Qi and body fluids, restoring both the body's functional capacity and its moisture. This pair is particularly effective at rehydrating depleted tissues.

When to use: After febrile illness or heavy sweating that has damaged both Qi and Yin, presenting with thirst, dry mouth, fatigue, and a weak, thready pulse.

Comparable Ingredients

These ingredients have overlapping uses — here's how to tell them apart

Ren Shen
Dang Shen vs Ren Shen

Both tonify Spleen and Lung Qi and generate fluids. However, Rén Shēn (Ginseng) is significantly more potent, slightly warm, and can rescue collapsed Yáng in emergencies. It also calms the spirit and benefits the Heart. Dǎng Shēn is milder, neutral in temperature, and more affordable, making it better suited for mild to moderate chronic Qi deficiency and long-term use. In non-emergency formulas originally written with Rén Shēn, practitioners often substitute Dǎng Shēn at a higher dose.

Tai Zi Shen
Dang Shen vs Tai Zi Shen

Both are mild, gentle Qi tonics that also generate fluids. Tài Zǐ Shēn (Pseudostellaria root) is even milder and slightly cool, making it better suited for children or for patients with Yin deficiency who cannot tolerate any warming. Dǎng Shēn is stronger at tonifying Spleen Qi and nourishing Blood, so it is preferred when the Qi deficiency is more pronounced or when Blood deficiency is also present.

Xi Yang Shen
Dang Shen vs Xi Yang Shen

Both tonify Qi and generate fluids. Xī Yáng Shēn (American Ginseng) is cool in nature and has a stronger Yin-nourishing, Heat-clearing action, making it better for Qi and Yin deficiency with Heat signs. Dǎng Shēn is neutral and better at strengthening the Spleen to improve digestion and generate Blood. Xī Yáng Shēn does not tonify the Spleen as effectively.

Identity & Adulterants

Related species and common adulterations to be aware of when sourcing Dang Shen

Dang Shen is sometimes confused with or substituted by several related or unrelated species: 1. Bai Dang Shen (白党参, Codonopsis tubulosa / Guan Hua Dang Shen): a related species with white coloring, less sweetness, and weaker therapeutic effect. Commonly sold from Sichuan and Yunnan. 2. Sulfur-fumigated Dang Shen: commercially processed with sulfur to improve appearance (brighter yellow color) and prevent insect damage. Distinguishable by its unnatural bright color and pungent sulfur smell, versus the natural earthy-tan color and sweet/milky aroma of untreated roots. 3. Various other Codonopsis species (C. canescens, C. subglobosa, etc.) from Sichuan that lack the characteristic 'lion's head' crown and 'chrysanthemum heart' cross-section, with weaker flavor and lower active compound content. 4. Ming Dang Shen (明党参, Changium smyrnioides): despite the similar common name, this is from a completely different plant family (Apiaceae) with different properties. It nourishes Yin and clears Lung Heat, whereas Dang Shen tonifies Qi. The roots look quite different (white, translucent when processed). Authentic Lu Dang Shen is identified by: 'lion's head' crown, dense upper ring markings, dark sticky latex at break points ('soy paste tail' / 豆豉尾), 'chrysanthemum heart' cross-section, pleasant sweet aroma, and sweet taste without residue when chewed.

Educational content — always consult a qualified healthcare provider or TCM practitioner before using any herb.

Toxicity Classification

Classical Chinese pharmacopoeia toxicity rating for Dang Shen

Non-toxic

Dang Shen is classified as non-toxic in the Chinese Pharmacopoeia. When consumed following traditional habits at normal food or medicinal doses, no adverse reactions have been reported. The herb has a long history of culinary use (in soups, congee, and stews) and has been officially recognized as a food-medicine dual-use substance. No toxic components of clinical concern have been identified at standard dosages. At very high doses, some individuals may experience mild gastrointestinal discomfort such as loose stools or mild bloating, but this is uncommon and resolves upon dose reduction.

Contraindications

Situations where Dang Shen should not be used or requires extra caution

Caution

Excess or Heat patterns where the body's healthy Qi is not deficient. As a tonifying herb, Dang Shen can reinforce pathogenic factors when used where there is no genuine Qi deficiency.

Avoid

Concurrent use with Li Lu (Veratrum, 藜芦). According to the classical Eighteen Incompatibilities (十八反), all 'Shen' herbs including Dang Shen are listed as incompatible with Li Lu, as the combination may produce or increase toxic effects.

Caution

Qi stagnation with abdominal distension and bloating. Dang Shen's tonifying and moistening nature can worsen stagnation if Qi movement is impaired. Address stagnation first or combine with Qi-moving herbs.

Caution

Dampness or Phlegm excess without concurrent Qi deficiency. Dang Shen's sweet, moistening quality may aggravate Dampness accumulation.

Classical Incompatibilities

Traditional Chinese pharmacological incompatibilities — herbs or substances to avoid combining with Dang Shen

Dang Shen is listed in the Eighteen Incompatibilities (十八反) as part of the group 'all Shen herbs' (诸参) that are incompatible with Li Lu (藜芦, Veratrum). The Chinese Pharmacopoeia specifies that Dang Shen should not be used together with Li Lu. The original verse states: '诸参辛芍叛藜芦' (all Shen herbs, Xin [Xixin], and Shao [Shaoyao] oppose Li Lu). While some historical physicians have used these combinations in specific circumstances, standard practice treats this as a firm contraindication. Additionally, in the Nineteen Mutual Fears (十九畏), Ren Shen (ginseng) fears Wu Ling Zhi (五灵脂). Some practitioners extend this caution to Dang Shen by analogy, though Dang Shen is not itself explicitly named in the Nineteen Fears list. Clinically, some experienced physicians do combine Dang Shen with Wu Ling Zhi (for conditions like chronic gastritis with both Qi deficiency and Blood stasis) and report good results without adverse effects.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Generally considered safe during pregnancy at standard doses. Dang Shen is a mild, sweet, neutral Qi tonic without blood-moving, Qi-descending, or uterine-stimulating properties. It has a long history of use in formulas prescribed during pregnancy to support Qi and Blood, such as in modified Si Jun Zi Tang or Ba Zhen Tang. No specific teratogenic or abortifacient concerns are documented. However, as with all herbs during pregnancy, use should be guided by a qualified practitioner and limited to situations where there is genuine deficiency warranting treatment.

Breastfeeding

Considered safe during breastfeeding. Dang Shen is a gentle Qi tonic that has been traditionally used in postpartum recovery formulas to support the mother's Qi and Blood production, which in turn supports milk supply. Its sweet, neutral nature makes it one of the safest tonifying herbs for nursing mothers. There are no documented concerns regarding transfer of harmful substances through breast milk. In traditional practice, it is commonly included in postpartum soups and dietary preparations (such as Dang Shen and red date soup) specifically to aid lactation and recovery.

Children

Dang Shen is considered one of the gentler Qi tonics and is suitable for children when indicated. Dosage should be adjusted by age and body weight: approximately one-quarter to one-third of the adult dose for young children (under 6), and one-half to two-thirds for older children (6-12). It is commonly used in pediatric formulas for poor appetite, failure to thrive, chronic loose stools, and recurrent respiratory infections due to Spleen and Lung Qi deficiency. Its sweet taste and mild nature make it relatively easy for children to tolerate in soups and porridge.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Dang Shen

No major drug-herb interactions have been conclusively documented for Dang Shen at standard therapeutic doses. However, based on its known pharmacological properties, the following theoretical interactions warrant caution:

  • Blood sugar-lowering medications: Some animal studies suggest Dang Shen polysaccharides may affect blood glucose levels. Individuals on insulin or oral hypoglycemics should monitor blood sugar when adding Dang Shen, as additive effects are possible.
  • Antihypertensive medications: Pharmacological research shows Dang Shen extracts may have mild vasodilatory and blood pressure-lowering effects. Concurrent use with antihypertensives could theoretically produce additive hypotension, though this has not been reported as clinically significant at normal herbal doses.
  • Immunosuppressant drugs: Dang Shen polysaccharides have demonstrated immunostimulating properties (activating macrophages, promoting T-cell proliferation). This could theoretically counteract immunosuppressive therapy. Caution is advised in organ transplant recipients or those on immunosuppressants.
  • Anticoagulant/antiplatelet drugs: Some research suggests Dang Shen may inhibit platelet aggregation and reduce blood viscosity. While not a strong blood-mover, additive effects with warfarin or similar drugs cannot be fully ruled out.

Dietary Advice

Foods and dietary considerations when taking Dang Shen

When taking Dang Shen to tonify Spleen Qi, favor warm, cooked, easily digestible foods such as congee, soups, steamed rice, and gently cooked vegetables. These support the Spleen's digestive function and complement the herb's tonifying action. Avoid excessive amounts of cold, raw foods (salads, iced drinks, raw fruit in large quantities), greasy or deep-fried foods, and overly sweet or rich foods, as these can burden the Spleen and counteract the herb's benefits. Dang Shen pairs well in food preparation with red dates (Da Zao), longan fruit (Long Yan Rou), and goji berries (Gou Qi Zi) for Qi and Blood nourishing soups. Turnip (Lai Fu Zi / radish) is traditionally said to reduce the effectiveness of Qi-tonifying herbs, so large amounts of raw radish are best avoided when taking Dang Shen therapeutically.

Botanical Description

Physical characteristics and morphology of the Dang Shen source plant

Codonopsis pilosula is a herbaceous perennial climbing plant in the bellflower family (Campanulaceae). It produces twining stems that can reach 1.5 to 2 metres in length, scrambling over the ground and climbing into nearby vegetation for support. The leaves are alternate on the main stem and opposite on small lateral branches, oval to lance-shaped, and covered with fine hairs (the species name pilosula means 'slightly hairy'). In summer (June to August), the plant produces solitary, nodding, bell-shaped flowers that are pale yellow-green with distinctive purple spots on the inside. Seeds ripen in small capsules from August to September.

The medicinal root is thick, fleshy, and cylindrical or slightly tapered, sometimes branched, growing up to 30 cm or more in length. When broken, it exudes a milky white latex that dries to a dark brownish-black, sticky substance. The plant is native to mountainous regions of East Asia, growing naturally in forest margins, meadows, thickets, and grassy slopes at elevations of 900 to 3,100 metres. It prefers cool, moist climates with well-drained, deep, loose, humus-rich soils and partial shade, though mature plants tolerate full sun.

Sourcing & Harvesting

Where Dang Shen is sourced, when it's harvested or collected, and how to assess quality

Harvesting season

Autumn (September to October), after 2-3 years of cultivation for standard varieties, or after 6+ years for premium wild-style Wen Dang.

Primary growing regions

The premier terroir (道地药材) for Dang Shen is Shanxi province, particularly the Changzhi area (historically known as Luzhou or Shangdang). The variety produced here is called 'Lu Dang Shen' (潞党参) and is considered the highest quality, with over 500 years of cultivation history. Pingshun, Huguan, and Licheng counties in Changzhi are core production areas. Gansu province is the other major terroir region. 'Wen Dang' (纹党) from Wenxian county in southern Gansu is highly prized for its dense ring-like markings and grows at 2,600-3,200m elevation, taking 6+ years to mature. 'Bai Tiao Dang' (白条党) from Dingxi in central Gansu is the most commercially abundant variety. Other significant production regions include Shaanxi, Sichuan (川党参 / Chuan Dang Shen), Hubei, Qinghai, and northeast China. Shanxi Wutai Mountain produces the rare 'Tai Dang Shen' (台党参), considered among the finest wild varieties.

Quality indicators

High-quality Dang Shen roots (especially Lu Dang Shen) are thick, fleshy, and moderately long with a soft, pliable texture. The root crown should display the characteristic 'lion's coiled head' (狮子盘头): multiple knobby stem scars clustered into a rounded shape. Below the crown, dense horizontal ring-like wrinkles (环纹) should be visible, with the best specimens showing these extending down at least half the root's length. The cross-section should show the 'chrysanthemum heart' (菊花心) pattern: a clearly visible deeper-colored ring between the bark and wood, with radial fissures radiating outward. The bark is pale yellowish-white to light tan, and the inner wood is pale yellow. The aroma should be distinctive and pleasantly sweet, sometimes described as a milky or creamy fragrance (especially in Wen Dang). The taste should be noticeably sweet with no bitterness, and when chewed, the root should feel fleshy without fibrous residue. Avoid roots that are woody, hollow-centered, heavily fibrous, or have a sulfurous smell (indicating sulfur fumigation). Also watch for 'oil seepage' (走油): roots that have become dark, sticky, or translucent due to sugar oxidation from improper storage are degraded and should not be used.

Classical Texts

Key passages from the classical Chinese medical texts that describe Dang Shen and its therapeutic uses

《本草从新》(Bencao Congxin, Qing Dynasty, Wu Yiluo, 1757)

Original: 「按古本草云，参须上党者佳。今真党参久已难得……唯防风党参，性味和平足贵，根有狮子盘头者真，硬纹者伪也。」

Translation: "The ancient materia medica says that Shen (ginseng) from Shangdang is best. Today, the true Shangdang ginseng has long been difficult to obtain... Only Fangfeng-style Dang Shen, with its mild and balanced nature, is valuable. Those with a 'lion's head' at the root crown are genuine; those with hard ridges are counterfeit."

Note: This is the text where Dang Shen was first formally recorded as a distinct medicinal substance, separate from Ren Shen (Panax ginseng).

《本草纲目拾遗》(Bencao Gangmu Shiyi, Qing Dynasty, Zhao Xuemin)

Original: 「治肺虚，能益肺气。」

Translation: "Treats Lung deficiency; it can boost Lung Qi."

《本草正义》(Bencao Zhengyi, Qing Dynasty, Zhang Shanlei)

Original: 「力能补脾养胃，润肺生津，健运中气。……健脾运而不躁，滋胃阴而不滞，润肺而不犯寒凉，养血而不偏滋腻。」

Translation: "Its strength lies in supplementing the Spleen, nourishing the Stomach, moistening the Lungs, and generating fluids, while invigorating the movement of Middle Qi... It strengthens Spleen transportation without causing restlessness, nourishes Stomach Yin without causing stagnation, moistens the Lungs without introducing Cold, and nourishes Blood without being excessively cloying."

《本草从新》(Bencao Congxin)

Original: 「补中，益气，和脾胃，除烦渴。」

Translation: "Supplements the Middle, boosts Qi, harmonizes the Spleen and Stomach, and eliminates irritability and thirst."

Historical Context

The history and evolution of Dang Shen's use in Chinese medicine over the centuries

Dang Shen has a uniquely complex history because its name (党参, 'Shen from Shangdang') directly references a region once famous for producing the finest ginseng (Ren Shen, 人参). In ancient times, the Shangdang region of Shanxi was the most celebrated source of ginseng. As wild ginseng in this area became depleted over centuries, local practitioners began using the root of Codonopsis pilosula as a substitute. Because it came from the same region and had similar (though milder) Qi-tonifying effects, it inherited the name 'Dang Shen' (literally 'Shen from the Dang/Party region').

Dang Shen was not mentioned in ancient materia medica texts before the Qing Dynasty. It was first formally documented as a distinct herb in Wu Yiluo's Bencao Congxin (1757), where it was distinguished from true ginseng and given its own entry. Before this, references to 'Shangdang Ren Shen' in earlier texts likely referred to Panax ginseng grown in that region. A Japanese scholar, Shibata Shoji, even controversially proposed in 1981 that the 'ginseng' used in Zhang Zhongjing's time was actually Codonopsis, though Chinese scholars have largely refuted this claim. The name 'Fangfeng Dang Shen' (防风党参) arose because the root's horizontal markings resembled the herb Fangfeng, while 'Shizi Pan Tou' (狮子盘头, 'lion's coiled head') describes the distinctive crown of stem scars at the root's top.

In modern times, Dang Shen has become one of the most widely used Qi-tonifying herbs in clinical practice, largely replacing Ren Shen in many classical formulas for milder or chronic conditions due to its much lower cost, gentle nature, and wide availability. In 2023, China officially classified Dang Shen as a dual-use medicine-food substance (药食同源), reflecting its long history as both culinary ingredient and medicine in Shanxi and Gansu provinces.

Modern Research

3 published studies investigating the pharmacological effects or clinical outcomes of Dang Shen

1

Systematic review: Mechanism of action and potential medicinal value of Codonopsis pilosula in diseases (2024)

Guo H, Lou Y, Hou X, et al. Frontiers in Pharmacology, 2024, 15:1415147

A comprehensive systematic review examining five years of research on Codonopsis pilosula. The review found that the herb and its active compounds (polysaccharides, saponins, flavonoids) show significant effects on immune regulation, cardiovascular protection, anti-tumor activity, and improvement of nervous system function across multiple preclinical studies.

2

Systematic review and meta-analysis: Dang Shen herbal formulae for chronic obstructive pulmonary disease (2014)

An X, Zhang AL, May BH, et al. Evidence-Based Complementary and Alternative Medicine, 2014

A meta-analysis of 48 randomized controlled trials found that formulas containing Dang Shen improved lung function (FEV1), quality of life scores, and 6-minute walking distance in COPD patients compared to conventional pharmacotherapy alone. The herb formulas also reduced frequency and duration of COPD exacerbations.

PubMed
3

Systematic review: Phytochemical profile and potential medicinal functions of Codonopsis pilosula in cancer (2025)

Fan et al. Food Science & Nutrition, 2025

This review systematically examined the anticancer potential of Codonopsis pilosula, finding that its active constituents (polysaccharides, alkaloids, terpenoids, polyacetylenes) demonstrate anti-inflammatory, antioxidant, and apoptosis-inducing activities relevant to cancer research. The evidence is primarily preclinical and warrants further clinical investigation.

Research on individual TCM herbs is growing but still limited by Western clinical trial standards. These studies provide emerging evidence and should be considered alongside practitioner expertise.