Ingredient Animal — whole (全虫 quán chóng)

Quan Xie

Scorpion · 全蝎

Buthus martensii Karsch · Scorpio

Also known as: Quán Chóng (全虫), Xiē Zi (蝎子), Xiē Wěi (蝎尾 / Scorpion tail),

Quan Xie (Scorpion) plant

Images shown are for educational purposes only

Scorpion is a powerful animal-based substance in Chinese medicine, prized for its ability to stop spasms, relieve stubborn pain, and break up toxic swellings. It is most commonly used for seizure disorders, severe headaches, facial paralysis, and chronic joint pain that has not responded to gentler treatments. Because it is toxic, it is always used in small doses under professional guidance.

Category Liver-calming and Wind-extinguishing herbs (平肝息风药) Wind-extinguishing and spasm-relieving herbs (息风止痉药)
Therapeutic focus Neurological Health Pain Management Joint and Muscle Health Skin Conditions

TCM Properties

Temperature

Neutral

Taste

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

Channels entered

Liver

Parts used

Animal — whole (全虫 quán chóng)

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Educational content • Consult qualified TCM practitioners for diagnosis and treatment

What This Ingredient Does

Every ingredient has a specific set of actions — here's what Quan Xie does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Quan Xie is primarily used to support these areas of health:

Neurological Health Pain Management Joint and Muscle Health Skin Conditions

TCM Actions

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

Extinguishes Wind and Stops Spasms Unblocks the Channels and Alleviates Pain Resolves Toxicity and Dissipates Nodules

How these actions work

'Extinguishes Wind and stops tremors' is Quan Xie's primary action. In TCM, internal Wind is a Liver-related pathology that manifests as spasms, convulsions, tremors, and seizures. Quan Xie enters the Liver channel and has a powerful antispasmodic effect, making it one of the most important substances for calming these involuntary movements. It is used for childhood convulsions (both acute and chronic), epileptic seizures, tetanus with opisthotonos (severe backward arching of the body), facial twitching, and tremors. Because it is neutral in temperature, it can be used in both Heat-type and Cold-type Wind patterns, unlike Wu Gong (centipede), which is warm and better suited for Cold patterns.

'Unblocks the collaterals and stops pain' refers to Quan Xie's ability to penetrate deeply into the body's network vessels (collaterals) and relieve obstruction. This makes it especially effective for stubborn, treatment-resistant pain conditions: severe migraines and one-sided headaches, post-stroke symptoms like facial paralysis and hemiplegia (half-body paralysis), and chronic joint pain from Wind-Damp obstruction that has failed to respond to milder treatments. The classical literature describes scorpion as having a "searching and penetrating" nature that reaches into the bones and sinews.

'Attacks toxin and dissipates nodules' reflects the TCM principle of "using toxin to attack toxin." Quan Xie itself is toxic, and this very toxicity gives it the power to break up toxic accumulations such as scrofula (lymph node swellings), abscesses, and toxic sores. For these conditions, it is often applied externally as a paste or ointment, frequently combined with beeswax and sesame oil.

Patterns Addressed

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

Why Quan Xie addresses this pattern

Quan Xie is one of the foremost substances for addressing Liver Wind. When internal Wind stirs (whether from extreme Heat, Liver Yang rising out of control, or Blood/Yin Deficiency failing to anchor the Liver), it causes involuntary movements such as spasms, convulsions, and tremors. Quan Xie enters the Liver channel directly and has an exceptionally strong antispasmodic action. Its neutral temperature means it does not add Heat or Cold, making it versatile across both excess-Heat and deficiency-type Wind presentations. Its pungent taste enables it to disperse and move, while its salty taste softens and penetrates into the deeper network vessels.

A practitioner would look for one or more of these signs

Convulsions

Especially childhood convulsions, both acute and chronic

Seizures

Epileptic seizures with loss of consciousness and limb jerking

Tremors

Involuntary shaking or twitching of the limbs or face

Muscle Spasm

Opisthotonos, tetanic spasms, or muscle rigidity

Commonly Used For

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

Arises from: Liver Wind agitating Internally due to extreme Heat

TCM Interpretation

TCM understands epilepsy primarily through the interaction of Wind and Phlegm. The seizure itself is a manifestation of Liver Wind stirring internally, while the chronic underlying factor is often Phlegm turbidity obstructing the Heart orifices and brain. Between attacks, Phlegm lies dormant; when triggered by emotional stress, overwork, or other provocations, it combines with Wind to produce the sudden loss of consciousness, convulsions, foaming at the mouth, and strange vocalizations characteristic of the condition. The Liver and Heart organ systems are most directly involved.

Why Quan Xie Helps

Quan Xie directly addresses both key pathogenic factors in epilepsy. Its primary action of extinguishing Liver Wind tackles the acute convulsive mechanism, while classical sources note it can "open Wind-Phlegm" (开风痰), helping to dislodge the Phlegm that blocks the sensory orifices during a seizure. Its deeply penetrating, searching nature allows it to reach the interior obstructions that milder herbs cannot access. It is commonly ground into powder and taken in small doses, often combined with Wu Gong (centipede), Jiang Can (silkworm), and Tian Ma (gastrodia) for enhanced effect.

Also commonly used for

Convulsions

Childhood febrile convulsions and chronic convulsions

Tetanus

Classical indication for tetanic spasms and lockjaw

Stroke

Post-stroke sequelae including hemiplegia, speech difficulty, and facial deviation

Rheumatoid Arthritis

Chronic, deforming joint disease with pain and contracture

Trigeminal Neuralgia

Severe facial nerve pain

Scrofula

Lymph node tuberculosis and cervical lymphadenopathy

Chronic Urticaria

Stubborn, Wind-related itching skin conditions

Ingredient Properties

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

Temperature

Neutral

Taste

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

Channels Entered

Liver

Parts Used

Animal — whole (全虫 quán chóng)

Dosage & Preparation

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

Standard dosage

3-6g (decoction); 0.6-1g (powder for internal use)

Maximum dosage

Do not exceed 6g in decoction or 1g in powder form per dose without practitioner supervision. Higher doses significantly increase the risk of neurotoxic adverse effects.

Dosage notes

When used in decoction, the standard range is 3-6g. However, because the active venom proteins are partly degraded by prolonged boiling, many practitioners prefer administering Quan Xie as a ground powder (研末) taken with warm water, at 0.6-1g per dose. The powder form is considered more potent gram-for-gram than decoction. The tail segment (蝎梢/蝎尾) is more concentrated in venom and is considered more potent. When using tails only, the dose should be approximately one-third of the whole scorpion dose (typically 1-3 tails). For stubborn headaches, 1-2g powder taken with warm wine is a classical approach. For convulsions and spasms, it is commonly combined with Wu Gong (centipede) in the formula Zhi Jing San (止痉散). Salted scorpions should have the salt washed off before use to reduce the salty burden and improve therapeutic action.

Preparation

When used in decoction, Quan Xie is added to the pot and decocted normally. However, the preferred clinical method is to grind it into fine powder (研末) and take it swallowed with warm water or mixed into the strained decoction, as this preserves more of the active venom proteins that would otherwise be degraded by prolonged boiling. Salted scorpions (咸全蝎) should be rinsed with warm water or briefly soaked in vinegar to remove excess salt before use. Classical texts recommend 'washing off salt toxicity with hot water, then lightly dry-frying' (去足，热水洗去盐毒，微炒).

Processing Methods

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

Processing method

After capture, scorpions are soaked in salt water (approximately 300g salt per 1kg of scorpions), then boiled in the salt solution until the bodies become rigid. They are removed and air-dried in a ventilated area away from direct sunlight. Before clinical use, the salt is typically washed off by soaking in clean water.

How it changes properties

Salt processing is primarily a preservation method rather than a therapeutic modification. It prevents decay and facilitates storage. However, the residual salt can increase the effective weight (making dosing inaccurate) and adds an unpleasant salty taste to decoctions. The salt must be washed off before use to ensure accurate dosing and avoid excessive sodium intake. The core medicinal properties remain largely unchanged.

When to use this form

This is the most common commercial form due to its superior shelf life. However, when precise dosing is important (as it always is with this toxic substance), the salt should be carefully washed off and the scorpion re-dried before dispensing. Pharmacies sometimes further process by light stir-frying after desalting.

Common Ingredient Pairs

These ingredients are traditionally combined with Quan Xie for enhanced therapeutic effect

Wu Gong
Wu Gong 1:1 (equal parts by weight, commonly 3g each)

This is the most famous insect-medicine pair in TCM. Both extinguish Wind and stop spasms, but together their anticonvulsant and pain-relieving power far exceeds either alone. Quan Xie excels at unblocking collaterals and stopping pain, while Wu Gong (centipede) has a stronger Wind-extinguishing and spasm-stopping action. Together they both penetrate deeply into the sinews and bones, dispelling Wind, eliminating Dampness, and relieving pain from the interior outward.

When to use: Severe convulsions, epileptic seizures, tetanus, intractable headaches, and chronic Wind-Damp joint pain with deformity. Also used for toxic nodules and certain cancers based on the principle of 'attacking toxin with toxin.'

Jiang Can
Jiang Can 1:2 (Quan Xie 3g : Jiang Can 6g)

Quan Xie and Jiang Can (silkworm) both extinguish Wind and stop spasms, but Jiang Can adds significant Phlegm-transforming ability. Quan Xie penetrates deeply to unblock collaterals, while Jiang Can has a lighter, ascending nature that reaches the head and face and disperses Wind-Heat. Together, they address both the Wind and the Phlegm components of neurological conditions.

When to use: Facial paralysis (Bell's palsy), post-stroke facial deviation, childhood convulsions with Phlegm, and headaches with dizziness. Both herbs appear together in Qian Zheng San.

Bai Fu Zi
Bai Fu Zi 1:2 (Quan Xie 3g : Bai Fu Zi 6g)

Both herbs expel Wind and stop spasms, and both are used externally for scrofula and toxic nodules. Bai Fu Zi is warm, ascending, and specifically targets Wind-Phlegm in the head and face, especially the Yangming channel. Quan Xie adds powerful collateral-unblocking action. Together, they create a focused attack on Wind-Phlegm obstructing the facial channels.

When to use: Sudden facial paralysis with mouth and eye deviation, facial muscle twitching, and trigeminal neuralgia. The core pairing within Qian Zheng San.

Bai Hua She She Cao
Bai Hua She She Cao Quan Xie 5g : Bai Hua She 10-15g

Both substances have strongly penetrating, searching natures. Quan Xie excels at dredging collateral obstructions and stopping pain; Bai Hua She (white-pattern snake) is warm, reaches from the interior organs to the skin surface, and powerfully searches out Wind lodged deep in the bones and sinews. Together, they dispel Wind-Cold, expel Dampness, invigorate Blood, and relax the sinews for synergistic pain relief.

When to use: Chronic Wind-Damp Bi syndrome with severe joint pain, numbness, and contracture that has resisted other treatments. Also for post-stroke hemiplegia with limb stiffness.

Comparable Ingredients

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

Wu Gong
Quan Xie vs Wu Gong

Both extinguish Wind, stop spasms, unblock collaterals, and attack toxin. The key differences: Wu Gong (centipede) is pungent and warm, making it more suitable when Cold is part of the pattern, and it has a stronger antispasmodic effect. Quan Xie is pungent and neutral, making it more versatile and slightly better suited when Heat is present. Quan Xie is considered superior for collateral-unblocking and pain-stopping action, while Wu Gong is stronger for stopping convulsions outright. They are very frequently combined.

Jiang Can
Quan Xie vs Jiang Can

Both extinguish Wind and stop spasms, and both are commonly used for facial paralysis and convulsions. Jiang Can (silkworm) is lighter in nature, better at transforming Phlegm and dispersing Wind-Heat, and is less toxic, making it suitable for milder conditions or prolonged use. Quan Xie is more powerful, penetrates more deeply, has stronger pain-stopping action, and is better for severe, stubborn conditions. Jiang Can is preferred when Phlegm-Heat is dominant; Quan Xie when deep collateral obstruction and pain are the main issues.

Di Long
Quan Xie vs Di Long

Both unblock collaterals and are used for stroke sequelae and Bi syndrome. Di Long (earthworm) is salty and cold, also clears Heat, calms asthma, and promotes urination. It is milder and safer for long-term use and is preferred when Heat is prominent. Quan Xie is neutral, more powerful for stopping spasms and convulsions, and better for severe pain. Di Long lacks Quan Xie's antispasmodic potency but is less toxic and has broader applications including asthma and fever.

Common Substitutes & Adulterants

Related species and common adulterations to be aware of when sourcing Quan Xie

The tail segment alone (蝎梢 Xie Shao, or 蝎尾 Xie Wei) is sometimes sold separately and is considered more potent but also more toxic than the whole body. Dosage must be reduced to approximately one-third of the whole scorpion dose when using tails only. Adulteration commonly involves excessive salt processing to increase weight. Unscrupulous vendors may soak scorpions in heavy salt solutions, resulting in a thick white salt frost on the surface. Authentic medicinal-grade Quan Xie should have minimal salt residue. Some products may also contain excessive abdominal soil or debris from improper cleaning. Other scorpion species may occasionally be substituted, but the pharmacopoeia-standard species is specifically Buthus martensii Karsch (东亚钳蝎). Smaller yellow scorpions from western regions (Ningxia, Xinjiang) are sometimes sold as a different grade and may have different venom composition.

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

Toxicity Classification

Classical Chinese pharmacopoeia toxicity rating for Quan Xie

Toxic

The toxic components of Quan Xie are neurotoxic proteins (scorpion venom toxins, or 'xie du su') concentrated in the venom gland within the tail segment. These proteins are pharmacologically similar to snake neurotoxins. The venom of the tail alone is approximately six times more toxic than that of the whole body. The crude venom LD50 in mice is approximately 2.4 mg/kg (intraperitoneal). Toxicity symptoms include: skin allergic reactions with itching, numbness and paralysis of the limbs, kidney damage, respiratory paralysis, cardiac arrhythmia (slowed heart rate, blood pressure changes), and convulsions. Severe poisoning can be fatal due to respiratory arrest. Proper processing dramatically reduces toxicity. Traditional methods include salt-water boiling (the standard processing method), roasting, stir-frying, wine washing, and alum processing. These heat-based methods denature the toxic venom proteins, reducing their biological activity while preserving therapeutic effects. Clinical use at standard dosages (3-6g decoction, or 0.6-1g powder) after proper processing carries manageable risk. Mild oral poisoning usually resolves upon discontinuation.

Contraindications

Situations where Quan Xie should not be used or requires extra caution

Avoid

Pregnancy. Scorpion venom has documented teratogenic effects, including delayed or absent ossification centers and skeletal abnormalities in fetal development. The Chinese Pharmacopoeia explicitly states that pregnant women are prohibited from using Quan Xie.

Avoid

Blood deficiency generating internal wind (Yin deficiency or Blood deficiency patterns mimicking true Liver Wind). Quan Xie treats true Wind and should not be used when spasms or tremors arise from pure deficiency without genuine Wind pathology. Classical texts warn against use in '类中风' (stroke-like conditions from deficiency) and 'chronic Spleen Wind from deficiency'.

Avoid

Overdose or prolonged unsupervised use. Scorpion venom contains neurotoxic proteins that can cause skin allergic reactions, limb numbness or paralysis, kidney damage, respiratory paralysis, and cardiac arrhythmia. Strict dosage control is essential.

Caution

Patients with significant liver or kidney impairment. The toxic protein components of scorpion venom require hepatic and renal clearance. Impaired organ function increases the risk of toxin accumulation.

Caution

Patients with known allergy to scorpion products. Allergic reactions including skin rash, itching, and anaphylaxis have been reported.

Caution

Use with caution in patients with Yin deficiency, as the herb's acrid, Wind-dispersing nature may further consume Yin fluids.

Classical Incompatibilities

Traditional Chinese pharmacological incompatibilities — herbs or substances to avoid combining with Quan Xie

Quan Xie does not appear on the classical Eighteen Incompatibilities (十八反) or Nineteen Mutual Fears (十九畏) lists. However, classical texts note that snail (蜗牛) counteracts scorpion venom externally (applying snail mucus relieves scorpion stings), suggesting a traditional recognition of antagonism.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Contraindicated. The Chinese Pharmacopoeia explicitly prohibits use during pregnancy (孕妇禁用). Scorpion venom has documented teratogenic effects in animal studies, causing delayed or absent ossification centers in the fetus and resulting in skeletal abnormalities. The neurotoxic venom proteins can also cause uterine stimulation. There is no safe dosage established for pregnant women.

Breastfeeding

Caution advised. There is insufficient safety data on Quan Xie during breastfeeding. Given that scorpion venom contains neurotoxic proteins and other biologically active compounds, there is a theoretical risk of transfer through breast milk. The herb should only be used during lactation when clearly necessary and under practitioner supervision, at the lowest effective dose for the shortest duration.

Children

Quan Xie has a long historical tradition of use in pediatric conditions, particularly childhood convulsions (小儿惊风) and infantile umbilical Wind. However, it must be used with extreme caution in children due to its toxicity. Dosage should be significantly reduced according to age and body weight. For children under 2 years, classical texts suggest doses as small as 0.1-0.3g of the powdered form per dose. Children are more susceptible to scorpion venom toxicity than adults. Use should be strictly supervised by an experienced practitioner and limited to the shortest effective course. Store all scorpion products safely out of children's reach to prevent accidental ingestion.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Quan Xie

Anticoagulant and antiplatelet medications: Quan Xie has demonstrated effects on thrombus formation and cardiovascular function in animal studies. Concurrent use with anticoagulants (warfarin, heparin) or antiplatelet drugs (aspirin, clopidogrel) may theoretically increase bleeding risk. Monitor closely if co-administered.

Antihypertensive medications: Pharmacological studies have shown that scorpion preparations produce significant and sustained blood pressure reduction through vasodilation, cardiac suppression, and inhibition of the vasomotor centre. Combined use with antihypertensive drugs may potentiate hypotensive effects.

Antiepileptic drugs: Scorpion venom peptides modulate voltage-gated sodium channels, which is also the mechanism of several conventional antiepileptic drugs (e.g. carbamazepine, phenytoin). Unpredictable interactions affecting seizure threshold are theoretically possible.

Sedatives and CNS depressants: Quan Xie has demonstrated sedative effects in animal studies. Additive central nervous system depression may occur when combined with benzodiazepines, barbiturates, or opioids.

Dietary Advice

Foods and dietary considerations when taking Quan Xie

Avoid cold, raw foods during a course of Quan Xie treatment, as these may impair Spleen function and hinder the body's ability to process the herb's toxicity. Warm, easily digestible foods are preferred. Classical texts suggest vinegar as a beneficial pairing agent, as vinegar enters the Liver channel (matching Quan Xie's channel tropism) and historically was used to wash off excess salt. Alcohol in moderation may serve as a vehicle to enhance the herb's circulation through the channels, which is why many classical formulas call for taking scorpion powder with warm wine.

Botanical Description

Physical characteristics and morphology of the Quan Xie source animal

Quan Xie is not a plant but the dried whole body of the East Asian scorpion, Buthus martensii Karsch (family Buthidae). The adult scorpion measures approximately 6 cm in length. The head-thorax (cephalothorax) and front abdomen are flattened and elongated, greenish-brown in colour, bearing a pair of small chelicerae and a pair of larger pincer-like pedipalps resembling crab claws. The dorsal shield is trapezoid-shaped, with four pairs of seven-jointed walking legs on the underside, each ending in two claw-hooks. The front abdomen has seven segments with five raised ridges on the dorsal plate. The tail-like rear abdomen is yellowish-brown, consisting of six segments each with longitudinal grooves, ending in a sharp, hook-shaped venomous stinger. No spur exists below the stinger tip.

Scorpions are nocturnal and negatively phototactic, hiding by day under rocks, bark, leaf litter, wall crevices, and in moist, shaded areas on hillsides. They feed on spiders, small centipedes, crickets, and insect larvae. They are found across temperate northern China, and are now also raised in captivity.

Sourcing & Harvesting

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

Harvesting season

Late spring to early autumn (approximately May to September). 'Spring scorpions' (春蝎) caught around Qingming to Guyu (April) are considered highest quality as they have not yet ingested soil. 'Summer scorpions' (伏蝎) are caught in larger quantities during the hottest months (July-August).

Primary growing regions

Shandong province is the most renowned source of high-quality Quan Xie (道地药材), particularly the Yimeng Mountain region (沂蒙山区) including Yiyuan, Yishui, Mengyin, Linqu, and Pingyi counties. Shandong scorpions are prized for their large, complete bodies, firm texture, and greenish colour, and historically account for about one-third of national production. The scorpion venom from Yiyuan has been verified as the most potent in China. Other major producing regions include Henan (the Luoyang area is China's largest trading hub for scorpions), Hebei, Shanxi, Shaanxi, Liaoning, Gansu, Ningxia, and Inner Mongolia. Henan produces the largest volume overall. Smaller quantities come from Jiangsu, Anhui, and Hubei.

Quality indicators

Good quality Quan Xie should be complete and intact with all eight legs, both pincers, and the tail with its stinger clearly present. The body should be stiff, firm, and straight (not curled or broken). The back should show a greenish-brown colour, while the tail segments are yellowish-brown. The tail tip (stinger bulb) should be golden-yellow. The body should feel light and slightly crisp. A slightly fishy smell and salty taste are normal. When the tail segment is broken, it should be hollow inside. Good specimens are compact and small in form, as noted by the classical standard 'firm and small ones are superior' (形紧小者良). Avoid specimens that are heavily covered in salt frost (a sign of excessive salt processing used to increase weight), those with a dark or blackened colour, broken or incomplete bodies, or those with excessive dirt or foreign material in the abdomen. 'Unsalted scorpions' (淡全蝎) are preferred for medicinal use as they contain less added salt.

Classical Texts

Key passages from the classical Chinese medical texts that describe Quan Xie and its therapeutic uses

《开宝本草》(Kai Bao Ben Cao, Song Dynasty, 973 CE)

Original: 疗诸风瘾疹，及中风半身不遂，口眼歪斜，语涩，手足抽掣。

Translation: Treats various Wind conditions with skin rash, as well as stroke with hemiplegia, deviation of the mouth and eye, slurred speech, and spasms of the limbs.

《开宝本草》(Kai Bao Ben Cao) — on quality

Original: 蝎出青州，形紧小者良。

Translation: Scorpions from Qingzhou are best; those with a firm, compact, and small form are superior.

《本草纲目》(Ben Cao Gang Mu, Li Shizhen, Ming Dynasty)

Original: 蝎，足厥阴经药也，故治厥阴诸病。

Translation: Scorpion is a medicinal substance of the Foot Jueyin (Liver) channel, and therefore treats all diseases of the Jueyin.

《本草纲目》 — quoting Li Dongyuan (Li Gao)

Original: 凡疝气带下，皆属于风。蝎乃治风要药，俱宜加而用之。

Translation: All hernial disorders and vaginal discharge pertain to Wind. Scorpion is an essential Wind-treating medicinal and should be added [to formulas] for these conditions.

《本草求真》(Ben Cao Qiu Zhen, Qing Dynasty)

Original: 全蝎，专入肝，味辛而甘，气温有毒，色青属木，故专入肝祛风。

Translation: Quan Xie enters the Liver exclusively. Acrid and sweet in flavour, warm in nature, and toxic. Its green colour pertains to Wood, so it specifically enters the Liver to dispel Wind.

《本草衍义》(Ben Cao Yan Yi, Song Dynasty)

Original: 蝎，大人小儿通用，治小儿惊风，不可阙也。有用全者，有只用梢者，梢力尤功。

Translation: Scorpion is used for both adults and children. For treating childhood convulsions, it is indispensable. Some use the whole body, some only the tail; the tail is more potent.

Historical Context

The history and evolution of Quan Xie's use in Chinese medicine over the centuries

Quan Xie was first recorded as a medicinal substance in the Shu Ben Cao (蜀本草) of the Five Dynasties period (10th century), giving it over 1,100 years of documented medicinal use. It was subsequently included in the influential Kai Bao Ben Cao (开宝本草, 973 CE) of the early Song Dynasty, which provided the foundational description of its Wind-treating properties. The name '全蝎' (whole scorpion) first appeared in the Song Dynasty text Ben Cao Ji Yi (本草集议) by Ai Yuanfu, which distinguished between using the whole body (全蝎) and using just the tail (蝎梢, xie shao), noting the tail to be more potent.

Li Shizhen's Ben Cao Gang Mu (1596) consolidated and expanded scorpion knowledge, identifying it as a Foot Jueyin (Liver) channel medicinal and documenting extensive clinical applications for convulsions, Wind conditions, and toxic sores. Li Dongyuan (Jin Dynasty physician) was famously quoted as declaring scorpion an essential Wind-treating drug applicable to hernial pain and vaginal discharge. The renowned modern TCM physician Zhu Liangchun (朱良春) was particularly noted for his creative clinical use of scorpion, developing formulas like 'Xie Jia San' (蝎甲散) for recurrent erysipelas and 'Xie Ma San' (蝎麻散) for brain tumour pain. Culturally, scorpions are considered one of the 'Five Venomous Creatures' (五毒) in Chinese tradition, and Pu Songling, author of Strange Tales from a Chinese Studio (聊斋志异), reportedly ate fried scorpions as a health tonic.

Modern Research

4 published studies investigating the pharmacological effects or clinical outcomes of Quan Xie

1

Anti-epileptic/pro-epileptic effects of sodium channel modulators from Buthus martensii Karsch (Review, 2022)

Xiao Q, Zhang ZP, Hou YB, et al. Sheng Li Xue Bao. 2022;74(4):621-632.

This review examines how peptide neurotoxins from B. martensii venom interact with voltage-gated sodium channels (VGSCs) relevant to epilepsy. Beta and beta-like neurotoxins binding to receptor site-4 of VGSCs showed significant anticonvulsant effects in rodent epilepsy models, while alpha-like toxins binding site-3 were proconvulsant. The findings help explain the traditional anti-epileptic use of scorpion and provide frameworks for drug design.

PubMed
2

Purification and N-terminal partial sequence of anti-epilepsy peptide from venom of the scorpion Buthus martensii Karsch (Preclinical, 1989)

Zhou XH, Yang D, Zhang JH, Liu CM, Lei KJ. Biochem J. 1989;257(2):509-517.

An anti-epilepsy peptide (AEP) was isolated from B. martensii venom with a molecular weight of 8,300 and an isoelectric point of 8.52. The purified peptide showed no haemorrhagic or general toxic activity even at 28 mg/kg, but strongly inhibited experimentally induced epilepsy in animal models. It had no effect on heart rate, blood pressure, or ECG, suggesting a targeted neurological mechanism.

PubMed
3

Peptides with therapeutic potential in the venom of the scorpion Buthus martensii Karsch (Review, 2019)

Li Z, Hu P, Wu W, Wang Y. Peptides. 2019;115:43-50.

This review catalogues dozens of biologically active peptides identified in B. martensii venom over the past decade. Most are neurotoxins responsible for venom toxicity, but several show promising anticancer, antimicrobial, analgesic, and anti-epileptic therapeutic effects. Modified peptide derivatives such as ADWX-1 and Kn2-7 have been designed to enhance therapeutic potential while reducing toxicity.

PubMed
4

Scorpion venom heat-resistant synthesized peptide ameliorates epileptic seizures and imparts neuroprotection in rats mediated by NMDA receptors (Preclinical, 2024)

Sui AR, Piao H, Xiong ST, Zhang P, et al. Eur J Pharmacol. 2024.

A synthesized peptide (SVHRSP) derived from B. martensii venom demonstrated anticonvulsant and neuroprotective properties in a pentylenetetrazole-induced rat epilepsy model. The effects were attributed to modulation of NMDA receptor expression and function. The peptide also showed anti-neuroinflammatory and neuroprotective effects in vitro.

PubMed

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.