Ingredient Animal — whole (全虫 quán chóng)

Ge Jie

Gecko · 蛤蚧

Gekko gecko Linnaeus · Gecko

Also known as: Tokay Gecko, Da Bi Hu (大壁虎), Xian Chan (仙蟾),

Ge Jie (Gecko) plant

Images shown are for educational purposes only

Ge Jie (Gecko) is a valued animal-based ingredient in Chinese medicine, traditionally used in pairs (one male, one female). It strengthens the Lungs and Kidneys, making it especially helpful for chronic wheezing, shortness of breath, and persistent cough that do not respond to other treatments. It is also used to support vitality and reproductive health in cases of Kidney weakness.

Category Yang-tonifying herbs (补阳药)
Therapeutic focus Respiratory Health Kidney Health Sexual Health and Libido Immune Support

TCM Properties

Temperature

Neutral

Taste

Salty (咸 xián)

Channels entered

Lungs, Kidneys

Parts used

Animal — whole (全虫 quán chóng)

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 Ge Jie does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Ge Jie is primarily used to support these areas of health:

Respiratory Health Kidney Health Sexual Health and Libido Immune Support

TCM Actions

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

Tonifies Lung Qi Assists Yang Aids the Kidneys in Grasping Qi Nourishes Essence and Blood Stops Cough

How these actions work

'Tonifies Lung Qi' means Ge Jie strengthens the Lungs' ability to manage breathing. It is used for people with chronic cough or shortness of breath caused by long-term Lung weakness, where the Lungs no longer have enough Qi to perform their descending and dispersing functions properly.

'Assists Kidney Yang and nourishes Essence' means Ge Jie warms and supports the Kidneys' foundational warming power (Yang) while also replenishing the vital substance known as Essence (Jing), which governs reproduction and vitality. This is why it is traditionally used for conditions like impotence, premature ejaculation, and general weakness of the lower back and knees.

'Grasps Qi and calms wheezing' refers to one of Ge Jie's most distinctive abilities. In TCM, the Kidneys are responsible for 'receiving' or 'grasping' the breath that the Lungs send downward. When the Kidneys are too weak to hold this Qi down, breathing becomes shallow, laboured, and wheezy, with difficulty inhaling. Ge Jie strengthens the Kidneys' grip on Qi, making it particularly valuable for chronic asthma and emphysema where the person struggles to take a deep breath. This action distinguishes Ge Jie from most other Yang-tonifying herbs.

Patterns Addressed

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

Why Ge Jie addresses this pattern

Ge Jie enters the Lung and Kidney channels and has a unique ability to help the Kidneys 'grasp' Qi sent down from the Lungs. In this pattern, the Kidneys are too weak to anchor the breath, leading to shallow, laboured breathing with difficulty inhaling. Ge Jie's salty taste directs it to the Kidneys, where it tonifies Kidney Yang and restores the Kidneys' capacity to receive and hold Qi downward, directly addressing the root mechanism of this pattern.

A practitioner would look for one or more of these signs

Shortness Of Breath

Worse on exertion, difficulty inhaling

Wheezing

Chronic wheezing that worsens with movement

Chronic Coughing

Weak, persistent cough

Lower Back Pain

Soreness and weakness in the lower back and knees

Commonly Used For

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

Arises from: Qi Deficiency Lung and Kidney Yang Deficiency

TCM Interpretation

TCM views chronic asthma not primarily as an airway problem but as a failure of the Lung-Kidney axis. The Lungs govern respiration by sending Qi downward, and the Kidneys 'receive' or 'grasp' that Qi to complete the breathing cycle. When the Kidneys become too weak to anchor the breath (often after years of illness, aging, or constitutional weakness), Qi rebels upward, producing wheezing and difficulty inhaling. This is why chronic asthma in older or weakened patients is often rooted in Kidney deficiency rather than acute Lung pathology.

Why Ge Jie Helps

Ge Jie is considered one of the most important substances for deficiency-type wheezing because it simultaneously tonifies Lung Qi and assists the Kidneys in grasping Qi. Its neutral temperature means it will not generate excess Heat, making it safe for long-term use. The classical formula Ren Shen Ge Jie San pairs it with Ginseng to powerfully address Lung-Kidney Qi deficiency. Modern clinical reports have shown formulas based on Ge Jie to be effective in improving symptoms and lung function in chronic asthma and COPD patients.

Also commonly used for

Chronic Bronchitis

Chronic cough and wheezing due to Lung-Kidney deficiency

Emphysema

Shortness of breath and difficulty inhaling

Chronic Obstructive Pulmonary Disease

Chronic breathlessness with Lung and Kidney weakness

Pulmonary Tuberculosis

Chronic cough with blood-streaked sputum and wasting

Premature Ejaculation
Nocturnal Emission

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

Salty (咸 xián)

Channels Entered

Lungs Kidneys

Parts Used

Animal — whole (全虫 quán chóng)

Dosage & Preparation

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

Standard dosage

3-7g (as powder); 6-15g (in decoction)

Maximum dosage

Up to 10-15g daily as powder in divided doses for severe chronic cough or wheezing, under practitioner supervision only. The tail portion alone may be used at lower doses for targeted effect.

Dosage notes

Ge Jie is most effective when used as powder (研末) or in pills rather than decoctions, because its hard, animal-tissue texture does not extract well in water. The standard powder dose is 1-2g per serving, 2-3 times daily. When used in decoction, higher amounts (6-15g) are needed. For Kidney Yang deficiency with impotence, wine-processed Ge Jie (酒蛤蚧) is preferred. For Lung deficiency with chronic cough and wheezing, the plain or oil-baked form (酥蛤蚧) is preferred. The tail is considered the most potent portion, and 'Ge Jie tail' (蛤蚧尾) may be prescribed separately at lower doses. Traditional use emphasises employing a complete pair (one male, one female) for best results. Because Ge Jie is expensive, it is commonly soaked in medicinal wine (药酒) as an alternative form of administration.

Preparation

Ge Jie is best used as powder (研末) or in pills rather than decoctions due to its hard animal tissue, which does not extract well in water. Before use, remove the head, feet, and scales as per Chinese Pharmacopoeia requirements. It can be baked with sesame oil (酥炙) until slightly yellow and crisp for easier grinding, or soaked in yellow rice wine (酒炙) to enhance its Kidney-tonifying properties and reduce fishy odour. When used in medicinal wine, soak one pair in 500-1000ml spirits (50 proof or higher) for 1-3 months.

Processing Methods

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

Processing method

The dried gecko body (with head, feet, and scales removed) is coated with sesame oil and roasted over gentle heat until slightly yellow and crispy.

How it changes properties

Oil-crisping makes the material less fishy-smelling, easier to grind into powder, and more palatable. The thermal nature and channel entry remain unchanged. This form is considered best for tonifying the Lungs, nourishing Essence, grasping Qi, and calming wheezing.

When to use this form

Preferred when the primary goal is treating chronic respiratory conditions such as deficiency-type wheezing and cough. The improved texture makes it easier to prepare as a powder for oral administration.

Common Ingredient Pairs

These ingredients are traditionally combined with Ge Jie for enhanced therapeutic effect

Ren Shen
Ren Shen 1 pair Ge Jie : Ren Shen 60g (as in classical formula proportions)

Ge Jie tonifies Lung Qi and helps the Kidneys grasp Qi, while Ren Shen (Ginseng) powerfully supplements the fundamental Qi of the Lungs and Spleen. Together they create a strong synergy for reinforcing both the Lung and Kidney ends of the breathing cycle, making their combined effect on deficiency-type wheezing much greater than either herb alone.

When to use: Chronic cough and wheezing from Lung-Kidney Qi deficiency, where the patient is weak, short of breath, and has a feeble voice. This is the core pair of the classical formula Ren Shen Ge Jie San.

Hu Tao Ren
Hu Tao Ren 1 pair Ge Jie : Hu Tao Ren 15-30g

Ge Jie strengthens the Kidneys' ability to grasp Qi, while Hu Tao Ren (Walnut kernel) warms the Lungs, moistens dryness, and also tonifies Kidney Yang. The pair addresses both the Lung and Kidney simultaneously from a warming, moistening angle, making it effective for cold-type wheezing with weak breathing.

When to use: Elderly or constitutionally weak patients with chronic wheezing, cold extremities, and watery sputum due to Kidney Yang deficiency failing to warm the Lungs.

Zi He Che
Zi He Che 1 pair Ge Jie : Zi He Che 24-30g

Both Ge Jie and Zi He Che (Human placenta) tonify the Kidneys and nourish Essence, but Zi He Che also strongly supplements Qi and Blood. Together they create a powerful combination for deep constitutional deficiency affecting both respiration and reproductive vitality.

When to use: Severe deficiency-type wheezing with wasting, or Kidney deficiency with both respiratory and reproductive symptoms. Often used together in powdered formulas for chronic COPD or emphysema.

Chuan Bei Mu
Chuan Bei Mu 1 pair Ge Jie : Chuan Bei Mu 6-12g

Ge Jie tonifies Lung Qi and calms wheezing from deficiency, while Chuan Bei Mu (Fritillaria) clears Phlegm-Heat from the Lungs and moistens dryness. This pairing addresses the common clinical scenario where Lung deficiency exists alongside lingering Phlegm-Heat, allowing both root and branch to be treated.

When to use: Chronic cough with sticky or yellowish phlegm, or coughing up blood-streaked sputum, where Lung deficiency coexists with residual Heat.

Key Formulas

These well-known formulas feature Ge Jie in a prominent role

Ren Shen Ge Jie San 人參蛤蚧散 King

The definitive formula showcasing Ge Jie's core actions. Originally named Ge Jie San in the Song dynasty text Bo Ji Fang, later renamed Ren Shen Ge Jie San. Ge Jie serves as co-King alongside Ren Shen, demonstrating its primary role in tonifying Lung Qi, supplementing Kidney Yang, and calming wheezing in cases of Lung-Kidney deficiency with Phlegm-Heat.

Comparable Ingredients

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

Dong Chong Xia Cao
Ge Jie vs Dong Chong Xia Cao

Both Ge Jie and Dong Chong Xia Cao (Cordyceps) tonify the Lungs and Kidneys, warm Yang, nourish Essence, and calm cough and wheezing. However, Ge Jie is stronger at helping the Kidneys grasp Qi and directly tonifying Lung Qi, making it the better choice for severe deficiency-type wheezing. Dong Chong Xia Cao calms wheezing more through descending rebellious Qi and is also milder and better tolerated as a daily tonic. Dong Chong Xia Cao additionally nourishes Lung Yin, giving it an advantage when Yin deficiency is also present.

Hai Zao
Ge Jie vs Hai Zao

Both Ge Jie and Hai Ma (Seahorse) are animal-derived Yang tonics that warm Kidney Yang and nourish Essence. However, Hai Ma is more focused on strengthening Yang for reproductive issues (impotence, infertility) and activating Blood circulation, while Ge Jie has the distinctive added ability to tonify Lung Qi and calm wheezing. When the primary complaint is chronic respiratory disease, Ge Jie is preferred. When the primary concern is sexual dysfunction without respiratory symptoms, Hai Ma may be more appropriate.

Yin Yang Huo
Ge Jie vs Yin Yang Huo

Both tonify Kidney Yang, but Yin Yang Huo (Epimedium) is acrid and warm with a stronger Yang-warming and Wind-Damp expelling action, primarily used for impotence and joint pain. Ge Jie is neutral and salty, gentler on the body, and has the unique dual action of tonifying both Lungs and Kidneys with a particular strength in calming wheezing. Ge Jie is the better choice when respiratory symptoms accompany Kidney deficiency.

Common Substitutes & Adulterants

Related species and common adulterations to be aware of when sourcing Ge Jie

Due to Ge Jie's high value and protected species status, adulteration is a significant problem in the market. Common fraudulent substitutes include: (1) Common wall geckos or house geckos (壁虎, Bi Hu, various Gekko species such as Gekko swinhonis or Gekko japonicus), which are much smaller and lack the distinctive colouration and robust build of the Tokay Gecko. (2) Red-spotted geckos (红点蛤蚧), which have conspicuous small round red spots on the back and are a different species. (3) Red warty newts (红瘰疣螈, Tylototriton shanjing), a salamander species fraudulently passed off as Ge Jie. (4) In extreme cases, parts of monitor lizards have been disfigured with prosthetics to mimic oversized Tokay Gecko specimens. Authentic Ge Jie is distinguished by its large size (body and tail together 15-30 cm), the characteristic spotted grey-silver body pattern with 6-7 silver-grey tail bands, five-toed feet with visible adhesive toe pads, and fine granular scales. DNA mini-barcoding methods have been developed to definitively authenticate Ge Jie in processed products where morphological identification is impossible.

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

Toxicity Classification

Classical Chinese pharmacopoeia toxicity rating for Ge Jie

Slightly toxic

Classical sources consistently state that the toxicity of Ge Jie resides in its eyes and head ("其毒在眼"). The Lei Gong Pao Zhi Lun and subsequent texts all specify removing the eyes, head, and feet before medicinal use. The Chinese Pharmacopoeia requires removal of the head, feet, and scales prior to clinical application. Proper processing with yellow rice wine (酒炙) or baking with sesame oil (酥炙) further ensures safety and reduces the fishy odour. However, modern pharmacological testing on rats has shown that the head and feet portions do not produce obvious toxic or side effects, suggesting the classical caution may be overstated. Nevertheless, standard practice remains to remove the head and feet as a safety precaution. At standard dosages with proper processing, Ge Jie is considered safe for clinical use.

Contraindications

Situations where Ge Jie should not be used or requires extra caution

Caution

Yin deficiency with vigorous Fire (阴虚火旺). As a Yang-tonifying substance, Ge Jie can aggravate Heat signs in people with underlying Yin deficiency, worsening symptoms such as night sweats, hot flashes, and dry mouth.

Avoid

External wind-cold or wind-heat cough and wheezing. Ge Jie is for chronic deficiency-type cough and dyspnea only. Using it during an acute respiratory infection with cough may trap the pathogen inside the body and worsen the condition.

Caution

Excess-type (Shi) cough with copious phlegm. Ge Jie tonifies and astringes, so it is inappropriate when the primary problem is phlegm obstruction or Lung Heat rather than Lung-Kidney deficiency.

Caution

Damp-Heat conditions. As a tonifying and slightly warming substance, Ge Jie can worsen patterns involving dampness and heat accumulation.

Avoid

Allergy to animal-derived proteins. Individuals with known sensitivity to reptile or animal proteins should avoid this substance.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Ge Jie should be used with caution during pregnancy. It has demonstrated both estrogenic and androgenic hormone-like effects in animal studies, including increasing uterine and ovarian weight in mice. These sex hormone-mimicking properties raise theoretical concerns about disrupting the hormonal balance necessary for healthy pregnancy. Additionally, as a Yang-tonifying substance, it may generate unwanted Heat in a pregnant woman's body. There is insufficient safety data to confirm safety during pregnancy. Pregnant women should avoid Ge Jie unless specifically prescribed by a qualified practitioner who has determined the benefits clearly outweigh the risks.

Breastfeeding

There is no specific safety data on the use of Ge Jie during breastfeeding. The demonstrated sex hormone-like effects (both estrogenic and androgenic) in animal studies raise concern about potential transfer of bioactive compounds through breast milk and possible effects on lactation or the nursing infant's hormonal balance. Breastfeeding women should avoid Ge Jie unless explicitly advised by a qualified practitioner.

Children

Ge Jie is generally not recommended for young children due to its hormone-like effects (both androgenic and estrogenic), which could theoretically interfere with normal development. If used in older children for chronic asthmatic or deficiency conditions under practitioner supervision, dosage should be reduced to roughly one-third to one-half the adult dose. It should not be given to children under the age of 3. As with all animal-derived medicines, allergic reactions are possible and should be monitored for.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Ge Jie

No well-documented pharmaceutical drug interactions have been established in controlled human studies. However, based on its known pharmacological properties, the following theoretical interactions should be considered:

  • Hormone therapies and hormonal contraceptives: Ge Jie extract has demonstrated both estrogenic and androgenic hormone-like effects in animal studies, potentially interfering with hormonal medications including oral contraceptives, hormone replacement therapy, and anti-androgen drugs.
  • Hypoglycaemic medications: Animal studies have shown a mild blood sugar-lowering effect, which could theoretically potentiate the effects of insulin or oral hypoglycaemic agents, increasing the risk of hypoglycaemia.
  • Immunosuppressants: Ge Jie extract has demonstrated immune-enhancing effects in multiple studies. This could theoretically counteract immunosuppressive medications used in autoimmune conditions or organ transplant recipients.

Patients taking any of these medication categories should consult their healthcare provider before using Ge Jie.

Dietary Advice

Foods and dietary considerations when taking Ge Jie

When taking Ge Jie, avoid cold, raw foods and iced drinks, as these can impair the warming and tonifying effects on the Lungs and Kidneys. Avoid excessive spicy, greasy, or fried foods, which may generate pathological Heat and counteract the herb's balanced tonifying action. People with Yin deficiency tendencies should ensure adequate fluid intake and consume Yin-nourishing foods such as pear, lily bulb, and white fungus alongside Ge Jie to prevent dryness or Heat buildup. Moderate warm and neutral foods such as walnuts, goji berries, and Chinese yam complement Ge Jie's actions.

Botanical Description

Physical characteristics and morphology of the Ge Jie source animal

Ge Jie is not a plant but an animal-derived medicinal substance. It comes from the Tokay Gecko (Gekko gecko Linnaeus), one of the largest gecko species in the world, belonging to the family Gekkonidae. Adults typically reach 25 to 40 cm in total length, with males larger and more brightly coloured than females. The body is cylindrical, somewhat flattened dorsally, with a broad head, powerful muscular jaws, and large lidless eyes with vertical slit pupils. The skin has a soft, velvety texture covered in fine granular scales interspersed with raised tubercles, giving a bumpy appearance. Body colouration is typically grey to bluish-grey with scattered bright orange-red, brownish-red, or yellowish-white spots. The toes bear expanded adhesive pads with rows of lamellae that allow the animal to climb virtually any surface, including glass.

The Tokay Gecko is nocturnal and arboreal, inhabiting tropical and subtropical rainforests where it lives on cliff faces, rocky crevices, tree hollows, and frequently in human dwellings. It feeds on insects and small vertebrates. The species is known for its distinctive loud "to-kay" mating call, from which both the common name "Tokay" and the Chinese name 蛤蚧 (Ge Jie) are derived as onomatopoeia. Importantly, the Tokay Gecko can shed its tail when threatened and regenerate a new one, though the medicinal potency is considered greatest in the original, intact tail.

Sourcing & Harvesting

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

Harvesting season

Can be captured year-round, though traditionally mainly collected from May to September when the geckos are most active during warm weather and easier to catch at night.

Primary growing regions

Guangxi Province is the premier source region and the traditional dao di (道地药材) origin of Ge Jie, producing the highest quality specimens. Guangdong and Yunnan provinces also produce significant quantities. In China, Ge Jie has been classified as a Class II protected animal species since 1989 due to declining wild populations. The Tokay Gecko is native broadly across Southeast Asia, including Vietnam, Thailand, the Philippines, Indonesia, Cambodia, and Malaysia, and significant quantities are imported from these countries for the medicinal trade. Black-spotted Tokay Geckos are more commonly found in southern China (Guangxi, Guangdong, southern Yunnan), while red-spotted variants are more widespread across Southeast Asia.

Quality indicators

The best quality Ge Jie specimens are sold in pairs (one male, one female), with bodies that are large, plump, and fully intact, especially the tail. The tail must be complete and undamaged, as this is considered the most therapeutically potent part. High-quality specimens have a flat, well-spread appearance when dried on bamboo splints, with a grey-black or silver-grey dorsal surface bearing distinct yellowish-white, grey-green, or orange-red spotted markings. The spine and ribs should be clearly visible and raised. The texture should be firm and leathery. The product should have a mild fishy smell and a slightly salty taste. Reject any specimens with broken, missing, or regenerated tails (regenerated tails are shorter and lack the characteristic 6-7 silver-grey bands). Also reject specimens that are wormy, mouldy, or overly dark.

Classical Texts

Key passages from the classical Chinese medical texts that describe Ge Jie and its therapeutic uses

Ben Cao Gang Mu (《本草纲目》, Li Shizhen)

Original: 补肺气，益精血，定喘止嗽，疗肺痈，消渴，助阳道。

Translation: "Supplements Lung Qi, enriches essence and Blood, calms wheezing and stops cough, treats Lung abscess, quenches thirst, and assists the Yang pathway [sexual function]."

Ben Cao Gang Mu — on the name (李时珍)

Original: 一雌一雄，常自呼其名。以雄为蛤，以雌为蚧，蛤蚧因声而名，仙蟾因形而名。

Translation: "One male and one female, they constantly call out their own names. The male's cry is 'Ge' and the female's cry is 'Jie.' The name Ge Jie comes from the sound, while the alias Xian Chan [Immortal Toad] comes from its toad-like appearance."

Lei Gong Pao Zhi Lun (《雷公炮炙论》)

Original: 蛤蚧，其毒在眼，须去眼及甲上、尾上、腹上肉毛，以酒浸透，隔两重纸缓焙令干……勿伤尾也。

Translation: "For Ge Jie, the toxicity is in the eyes. One must remove the eyes and the fleshy hairs on the shell, tail, and abdomen. Soak thoroughly in wine, then slowly roast dry over two layers of paper... Do not damage the tail."

Ben Cao Bei Yao (《本草备要》)

Original: 补肺润肾，益精助阳，治渴，定喘止嗽，肺痿咯血，气虚血竭。

Translation: "Supplements the Lungs and moistens the Kidneys, enriches essence and assists Yang. Treats thirst, calms wheezing and stops cough. [Addresses] Lung wilting with coughing of blood, and Qi deficiency with exhausted Blood."

De Pei Ben Cao (《得配本草》)

Original: 功用在尾，其毒在眼……阴虚火动，风邪喘嗽，二者禁用。

Translation: "The therapeutic power lies in the tail, and the toxicity is in the eyes... It is prohibited in cases of Yin deficiency with stirring Fire, and in wheezing and cough caused by external Wind pathogen."

Historical Context

The history and evolution of Ge Jie's use in Chinese medicine over the centuries

Ge Jie was first recorded as a medicinal substance in the Tang Dynasty text Hai Yao Ben Cao (海药本草, Materia Medica of Sea Herbs). The Xin Xiu Ben Cao (新修本草, Newly Revised Materia Medica), also from the Tang Dynasty, described its distinctive dawn and dusk calls with the phrase "旦暮则鸣，自呼蛤蚧是也" ("at dawn and dusk it cries, calling itself Ge Jie"). The name is purely onomatopoeic, imitating the animal's loud barking call. Li Shizhen elaborated in the Ben Cao Gang Mu that the male's cry sounds like "Ge" and the female's like "Jie," and the alternative name Xian Chan (仙蟾, "Immortal Toad") referred to its toad-like head shape.

A fascinating aspect of Ge Jie's medicinal tradition is its use in pairs. Classical sources describe the animals as inseparably bonded: "鸣则上下相呼，雌雄相应，情洽乃交，两相抱负，自坠于地，往捕劈之，至死不开" ("they call to each other, male and female responding in harmony, and when they mate they embrace and fall to the ground, and even when caught and pried apart they will not separate until death"). For this reason, Ge Jie has traditionally been sold and used in male-female pairs. The classical dictum "药力在尾" ("the therapeutic power lies in the tail") has been confirmed by modern analysis showing that the tail contains significantly higher concentrations of zinc and essential amino acids than the body. Specimens with damaged or missing tails are considered inferior or ineffective, and tailless specimens are rejected from the export trade.

Processing traditions dating to the Lei Gong Pao Zhi Lun (Southern Dynasties period, c. 5th century) established that the toxicity resides in the eyes and head, which must be removed before use. The Chinese Pharmacopoeia to this day specifies removing the head, feet, and scales before clinical use. Despite this, modern pharmacological studies have suggested the head and feet may not actually be toxic, opening the door to fuller utilization of the animal.

Modern Research

3 published studies investigating the pharmacological effects or clinical outcomes of Ge Jie

1

Anti-asthmatic effects of Gekko gecko extract in ovalbumin-induced asthma mouse model (Preclinical study, 2021)

Nam HH, Lee JH, Ryu SM, et al. Journal of Ethnopharmacology, 2022, 283, 114574.

This preclinical study from Korea Institute of Oriental Medicine investigated the effects of Gekko gecko extract (GGE) on allergic asthma in mice. The extract attenuated asthmatic symptoms including inflammatory cell infiltration, mucus overproduction, and expression of Th2 cytokines. Results supported the traditional use of Ge Jie for respiratory disorders.

PubMed
2

Anti-tumor effect and mechanism of Gecko on human esophageal carcinoma cell lines and xenografted sarcoma 180 (Preclinical study, 2008)

Liu F, Wang JG, Wang SY, Li Y, Wu YP, Xi SM. World Journal of Gastroenterology, 2008, 14(25), 3990-3996.

This study examined the anti-tumor effects of gecko preparations on esophageal carcinoma cell lines in vitro and transplanted sarcoma 180 in mice. The gecko extract inhibited tumour growth, induced tumour cell apoptosis, and downregulated expression of angiogenic factors VEGF and bFGF. The study was conducted using Gekko japonicus rather than Gekko gecko, so results should be interpreted with that distinction in mind.

3

Anti-tumor effect and influence of Gekko gecko Linnaeus on the immune system of sarcoma 180-bearing mice (Preclinical study, 2009)

You Q, Han S, Zhang Y, Zheng J. Molecular Medicine Reports, 2009, 2(4), 573-577.

This animal study examined the anti-tumour activity and immune-modulating effects of Gekko gecko extract in mice bearing sarcoma 180 tumours. Results showed dose-dependent anti-tumour activity alongside upregulation of the immune system, as measured by lymphocyte transformation rate. The findings provided preliminary evidence for the traditional use of gecko in cancer-supportive therapy.

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.