定喘汤的核心功效与机制是什么？

定喘汤由白果、麻黄、苏子、甘草、款冬花、杏仁、桑白皮、黄芩与半夏精密化裁而成，核心功效为宣肺降气、清热化痰、平喘止咳。以麻黄宣通肺气、外散风寒，白果清热化痰、收敛肺气，两药一发一收，协同苏子、杏仁、款冬花下气化痰；黄芩、桑白皮清肺络炽盛之火，通过平调肺气升降，精准阻断痰热与外寒交织引起的气道痉挛。

现代医学中，定喘汤主要应用于哪些疾病？

现代临床和药理研究表明，定喘汤广泛应用于治疗支气管哮喘急性发作、急性支气管炎、喘息性肺炎、慢阻肺急性加重期及小儿百日咳。适用于表现为外感风寒、内蕴痰热的典型症状，能迅速扩张支气管平滑肌，稀释痰栓，抑制气道炎性风暴并降低气道高反应性。

服用定喘汤有哪些严格的辨证禁忌？

定喘汤偏清宣降泄，不适用于纯虚证及无热之证。脾肾两虚之久喘、无痰阴虚干咳、肺燥咳嗽者禁用。方中白果具生物毒性，禁止超量或长期无节制服用；麻黄含兴奋成分，高血压不佳、严重心功能不全、甲亢患者须禁用或严密监控。孕妇、哺乳期须遵医嘱，不确定体质者应专业评估。

Exterior-Releasing Formulas

定喘湯 · Dìng Chuǎn Tāng

Ding Chuan Tang

A classical formula for wheezing and cough from Wind-Cold exterior with internal phlegm-heat.

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Last reviewed August 2026

Formula CategoryExterior-Releasing Formulas

Primary PatternPhlegm-Heat

Primary FunctionDiffuse Lung, direct Qi down, clear heat, resolve phlegm, calm wheezing

Primary Therapeutic PrincipleRelease exterior cold while clearing internal phlegm-heat to calm wheezing

Main HerbsGinkgo Seed · Ephedra Herb · Perilla Fruit · Licorice Root · Coltsfoot Flower · Bitter Apricot Kernel · Mulberry Root Bark · Scutellaria / Baikal Skullcap · Pinellia Rhizome

Classical SourceMing-Qing classical formulary

Why This Formula?

Traditionally selected for wheezing from exterior Wind-Cold with interior phlegm-heat (yellow sputum), rather than pure Lung heat, upper-excess lower-deficiency, or cold fluids.

Overview

What Is Ding Chuan Tang?

1. Origins

Ding Chuan Tang (定喘汤), or Arrest Wheezing Decoction, is a classical Ming-dynasty formula from She Sheng Zhong Miao Fang (Exquisite Formulas for Preserving Life). It belongs to the category of formulas that descend Lung Qi, clear Heat, transform Phlegm, and stop wheezing.

This formula addresses wheezing and coughing caused by residual Wind-Cold constraining the exterior together with Phlegm-Heat accumulating in the Lungs. Typical signs include labored breathing or wheezing, cough with copious thick yellow phlegm, a sensation of tightness in the chest, possible mild aversion to cold with fever, a yellow greasy tongue coating, and a slippery rapid pulse.

Combining Ma Huang to disseminate Lung Qi and release the exterior with Bai Guo to astringe the Lungs and stop wheezing (a classic disperse-and-astringe pair), supported by Xing Ren, Su Zi, Kuan Dong Hua, and Ban Xia to descend Qi, transform Phlegm, and stop cough, Sang Bai Pi and Huang Qin to clear Lung Heat, and Gan Cao to harmonize, Ding Chuan Tang effectively opens the Lungs, clears interior Heat, resolves Phlegm, and arrests wheezing.

Ding Chuan Tang: Diffusing the Lungs, Descending Qi, Clearing Heat and Resolving Phlegm — Precision Care for Acute Bronchial Asthma Attacks, Acute Bronchitis and Wheezing Pneumonia | HJMEDICAL

2. Bronchial Asthma

When to Use: Bronchial asthma is a chronic airway issue that causes sudden wheezing, chest tightness, and shortness of breath. Ding Chuan Tang is highly regarded when an asthma attack is triggered by an external chill but is complicated by internal hot, sticky phlegm.
How it Helps: By opening the lungs, clearing the internal heat, and breaking down the mucus, this formula can rapidly ease airway inflammation and reduce symptom severity. Practitioners will often tweak the specific herb dosages to perfectly match the individual's needs.

3. Asthmatic Bronchitis

When to Use: Similar to asthma, asthmatic bronchitis involves intense coughing, wheezing, and heavy mucus production.
How it Helps: Because the underlying TCM pattern is often the same (cold on the outside trapping hot phlegm on the inside), Ding Chuan Tang is very effective here as well. It promotes easier expectoration of phlegm and calms the breathing. A qualified practitioner will adjust the formula as the patient’s condition evolves to ensure the best possible support.

How It Works

Herb Composition (Sovereign / Minister / Assistant / Envoy)

1. Chief Herbs — Ma Huang and Bai Guo

Ma Huang: This warm, slightly bitter herb is the primary driver in Ding Chuan Tang. It enters the Lung and Bladder channels to gently induce sweating, which helps expel external cold. More importantly, it powerfully opens and diffuses lung energy (Qi), clearing the airways to calm wheezing and relieve asthma symptoms.
Bai Guo: Neutral in nature, this herb does the exact opposite—it acts as an astringent to hold things in.
The Synergy: These two herbs make a perfect pair. While Ma Huang pushes out and disperses, Bai Guo pulls in and astringes. This delicate balance ensures that the dispersing action doesn't exhaust the lungs' vital energy, allowing for safe and highly effective wheeze relief.

2. Deputy Herbs — Xing Ren and Kuan Dong Hua

Xing Ren: This bitter, slightly warm herb specializes in directing Lung Qi downward. While Ma Huang pushes energy outward, Xing Ren pushes it down, effectively stopping coughs and resolving the heavy phlegm that blocks the airways.
Kuan Dong Hua: Known for its ability to warm and moisten the lungs, it provides excellent relief for cold-induced coughs. Together with Xing Ren, it significantly boosts the formula’s ability to clear out phlegm and calm labored, rapid breathing.

3. Adjuvant Herbs — Ban Xia, Sang Bai Pi, and Huang Qin

Ban Xia: Asthma attacks often come with a massive amount of mucus. This warm, acrid herb is a powerhouse for drying dampness and resolving stubborn phlegm, directly reducing airway obstruction. It also descends rebellious energy, easing asthma-related nausea.
Sang Bai Pi: Sweet and cold, it focuses on draining excess heat and fire from the lungs. It also helps to naturally expel excess fluid, taking a heavy physical burden off the respiratory system.
Huang Qin: Bitter and cold, it works hand-in-hand with Sang Bai Pi to aggressively clear internal heat and dry up dampness. It targets the hot, sticky phlegm often seen in patients with concurrent lung heat.

4. Envoy Herb — Gan Cao

Gan Cao: Sweet and neutral, this herb acts as the peacemaker (envoy) of the formula. It beautifully harmonizes the warming, cooling, dispersing, and astringing properties of all the other herbs so they work safely together. As a bonus, it tonifies the spleen, boosts overall energy, and gently moistens the lungs to soothe coughing.

Symptoms Traditionally Associated

Clinical Presentation in TCM

1. Pathomechanism (The Underlying Cause)

In Traditional Chinese Medicine, the pattern addressed by Ding Chuan Tang is described as internal phlegm-heat trapped by external wind-cold.

The External Trigger: Wind and cold pathogens invade the body's surface, causing the lungs to lock up. This traps the Lung Qi and tightly constricts the airways.
The Internal Issue: The patient already has thick, hot phlegm brewing inside the lungs. When the external cold traps this internal heat, it creates a "pressure cooker" effect, leading to a complex mix of external symptoms (chills and fever) and internal symptoms (severe coughing, wheezing, and thick mucus).

2. Actions (How the Formula Works)

Ding Chuan Tang is a brilliant multi-tasking formula designed to address both the root and the symptoms:

It diffuses the lungs and descends Qi (driven by Ma Huang and Xing Ren).
It clears heat and resolves phlegm (driven by Huang Qin, Sang Bai Pi, and Ban Xia).
By simultaneously fighting off the cold on the outside and clearing the hot phlegm on the inside, the formula successfully restores a normal, easy breathing rhythm.

3. Indications (When It is Used)

This formula is a classic go-to for patients experiencing an active asthma flare-up characterized by:

Breathing issues: Coughing and wheezing with highly labored breathing.
Phlegm: Copious, thick, yellow, and sticky mucus that is hard to cough up.
General symptoms: A mix of chills and fever (from the external cold), a yellow, greasy tongue coating, and a rapid pulse.
Clinical Application: Today, it is commonly studied and utilized to help manage conditions like bronchial asthma and asthmatic bronchitis, particularly when the patient's symptoms perfectly match this "cold outside, hot inside" TCM pattern.

Formula Analysis

The Mechanism in Classical Theory

1. Combining Lung-Diffusion with Qi-Descent

The Push and Pull: Ma Huang works by opening and diffusing the lung energy (Qi) outward, while Xing Ren directs the rebellious lung energy back downward.
The Result: This "one diffusing, one descending" teamwork is highly effective. Ma Huang breaks up the tightness in the chest, allowing energy to flow freely. At the same time, the bitter nature of Xing Ren pushes the energy down, restoring the lungs' normal rhythmic movement. This clears airway obstructions and helps breathing return to a smooth, relaxed pace during an asthma flare-up.

2. Combining Dispersal with Astringing

Balancing the Herbs: Here, we see the brilliant pairing of Ma Huang (which disperses) and Bai Guo (which astringes or holds in).
The Result: While Ma Huang is excellent at driving out cold and opening the lungs, its strong dispersing nature could potentially exhaust the lungs' energy if left unchecked. Bai Guo steps in to gently restrain the lung Qi, preventing over-depletion. This perfect balance ensures the formula provides maximum wheeze relief without weakening the body's natural defenses.

3. Synergy Between Heat-Clearing, Phlegm-Resolving, and Cough Relief

Tackling the Root: Herbs like Sang Bai Pi and Huang Qin are cooling agents that drain lung fire and reduce the production of hot phlegm. Meanwhile, Ban Xia acts as a powerful drying agent, making the thick mucus much easier to cough up.
The Result: By cooling the heat and drying the dampness, this combination directly targets the internal "phlegm-heat" brewing in the lungs. When combined with the cough-soothing properties of Kuan Dong Hua, Xing Ren, and Gan Cao, the formula effectively relieves both the root causes (heat and phlegm) and the surface symptoms (coughing and wheezing).

How This Formula Compares

Clinical Comparison Table

Compare	Ding Chuan Tang	Ma Xing Shi Gan Tang	Su Zi Jiang Qi Tang	Xiao Qing Long Tang
Primary Function	Diffuse Lung, direct Qi down, clear heat, resolve phlegm, calm wheezing	Clear Lung Heat	Direct rebellious Qi down, resolve phlegm, stop wheezing	Release exterior, transform congested fluids, stop cough and wheezing
Formula Category	Exterior-Releasing Formulas	Heat-Clearing Formulas	Qi-Regulating Formulas	Exterior-Releasing Formulas
Typical TCM Pattern	Phlegm-Heat	Lung Heat	Phlegm-Dampness	Wind-Cold
Main Conditions	Asthma & Wheezing, Cough	Cough, Asthma & Wheezing	Asthma & Wheezing, Chest Tightness	Cough, Asthma & Wheezing, Excessive Mucus, Nasal Congestion, Cold Limbs
Main Herbs	Ginkgo Seed · Ephedra Herb · Perilla Fruit · Licorice Root · Coltsfoot Flower · Bitter Apricot Kernel · Mulberry Root Bark · Scutellaria / Baikal Skullcap · Pinellia Rhizome	Ephedra Herb · Gypsum · Bitter Apricot Kernel · Honey-fried Licorice	Perilla Fruit · Pinellia Rhizome · Chinese Angelica Root · Licorice Root · Magnolia Bark · Peucedanum Root · Cinnamon Bark	Ephedra Herb · Cinnamon Twig · Dried Ginger · Asarum / Wild Ginger · Schisandra Fruit · White Peony Root · Pinellia Rhizome · Honey-fried Licorice
Classical Source	Ming-Qing classical formulary	Shang Han Lun (Zhang Zhongjing, Eastern Han)	Tai Ping Hui Min He Ji Ju Fang (Song, 1107)	Shang Han Lun (Zhang Zhongjing, Eastern Han)

How to tell them apart

Ding Chuan Tang, Ma Xing Shi Gan Tang, Su Zi Jiang Qi Tang and Xiao Qing Long Tang all calm wheezing. Ma Xing Shi Gan Tang clears Lung heat with exterior residual cold; Su Zi Jiang Qi Tang descends upper excess with lower deficiency; Xiao Qing Long Tang treats exterior cold with interior fluids. Ding Chuan Tang releases exterior cold while clearing internal phlegm-heat for wheezing with yellow sputum.

For educational reference only, based on traditional pattern differentiation — not a substitute for professional advice.

Clinical Modifications

Clinical Modifications for Ding Chuan Tang

1. For a Stronger "Cold" Factor

The Adjustment: When a patient is experiencing severe chills and fever, practitioners often add Gui Zhi to the mix.
The Goal: Gui Zhi is a warm herb that helps unblock the body's energy channels. By pairing it with Ma Huang, the formula becomes much better at driving out the external "wind-cold," effectively relieving the chills and fever that can trigger or accompany an asthma attack.

2. For Heavy, Sticky Phlegm-Heat

The Adjustment: If the patient is coughing up large amounts of thick, yellow, and sticky mucus, herbs like Dan Nan Xing and Gua Lou may be added.
The Goal: These additions bring extra cooling and clearing power. Dan Nan Xing clears heat and calms the system, while Gua Lou specifically opens up the chest and breaks down stubborn phlegm. Together, they make Ding Chuan Tang much more effective at clearing out congested airways.

3. For Severe Wheezing

The Adjustment: In cases where breathing is incredibly difficult and the wheezing is intense, practitioners might include Di Long and Ting Li Zi.
The Goal: Both of these herbs are strong agents for calming respiratory distress. Di Long helps unblock the channels and ease spasms, while Ting Li Zi actively drains excess fluid from the lungs. This combination directly tackles severe wheezing and helps restore normal respiratory function.

Modern Research

What the Science Suggests

Ding Chuan Tang is suited to asthma patterns involving unresolved lung qi and internal phlegm-heat obstruction, with the actions of diffusing and descending lung qi and treating qi to calm wheezing; a yellow, greasy tongue coating is commonly seen clinically.

1. Pharmacological Findings

Modern studies have shed light on why the ingredients in Ding Chuan Tang are so effective together:

Airway Relaxation: Research shows that Ma Huang contains compounds (like ephedrine) that naturally relax the smooth muscles of the bronchial tubes, quickly easing airway spasms during an asthma flare-up.
Cough Suppression: Xing Ren contains amygdalin, which acts as a natural cough suppressant and wheeze-calmer. Additionally, Ban Xia has been shown to gently inhibit the brain's cough center, reducing the urge to hack.
Reducing Inflammation: Key herbs like Sang Bai Pi and Huang Qin possess anti-inflammatory, antibacterial, and antiviral properties. These help to calm down the actual inflammation inside the respiratory tract.

2. Clinical Studies

Recent clinical trials continue to support the traditional uses of Ding Chuan Tang for asthma and related respiratory issues:

Improving Symptoms: Clinical data confirms that the formula effectively reduces coughing, wheezing, and excessive mucus production, leading to measurably better lung function.
Quality of Life: When compared to certain Western medications, this herbal formula shows advantages in reducing the overall frequency of asthma attacks and improving the patient's daily quality of life, often with a lower profile of side effects.
Broader Applications: Beyond standard asthma, it has also shown strong clinical results in treating conditions like asthmatic bronchitis, proving its versatility in respiratory care.

Safety

Safety Considerations

1. Precautions

Because Ding Chuan Tang contains strongly sweat-inducing Mahuang, use it cautiously in people with weak constitutions or spontaneous/night sweating. Baiguo is toxic in excessive doses; stop taking the formula and seek medical care if nausea, vomiting, abdominal pain, or diarrhea occurs. Maintain a light diet and avoid spicy, greasy, and other irritating foods.

2. Contraindications

Pregnant women should use Ding Chuan Tang only under professional supervision. Do not use it if allergic to any ingredient. Discontinue immediately and seek urgent medical attention if rash, itching, breathing difficulty, or other allergic symptoms develop.

Available Products

Where to Get It

Hoi Tin Ding Chuan Tang Extract Granules

HJMEDICAL Hoi Tin Ding Chuan Tang (Calm the Wheezing Decoction) 5:1 Concentrated Granules $26.32

HJMEDICAL Nong's Ding Chuan Tang (Arrest Wheezing Decoction) 5:1 Concentrated Granules $65.16

Hoi Tin Ma Xing Shi Gan Tang Extract Granules

HJMEDICAL Hoi Tin Ma Xing Shi Gan Tang (Ephedra, Apricot Kernel, Gypsum & Licorice Decoction) 5:1 Concentrated Granules $24.93

Nong's Ma Xing Gan Shi Tang Extract Granules

HJMEDICAL Nong's Ma Xing Gan Shi Tang (Ephedra, Apricot, Licorice & Gypsum) 5:1 Concentrated Granules $38.41

Hoi Tin Su Zi Jiang Qi Tang Extract Granules

HJMEDICAL Hoi Tin Su Zi Jiang Qi Tang (Perilla Seed Decoction) 5:1 Concentrated Granules $24.93

Nong's Su Zi Jiang Qi Tang Extract Granules

HJMEDICAL Nong's Su Zi Jiang Qi Tang (Perilla Seed Decoction to Direct Qi Downward) 5:1 Concentrated Granules $44.83

FAQ

Questions About Ding Chuan Tang

Q1: What are the actions of Ding Chuan Tang?

Ding Chuan Tang has the actions of diffusing and descending Lung Qi, clearing Heat, transforming Phlegm, and arresting wheezing. It is designed for wheezing caused by residual Wind-Cold on the exterior with Phlegm-Heat accumulated in the Lung.

Q2: Which modern diseases is Ding Chuan Tang suited to?

Modern TCM clinical practice commonly applies it to individuals whose pattern differentiation falls within Phlegm-Heat in the Lung, including bronchial asthma or asthmatic bronchitis with thick yellow phlegm, acute exacerbations of chronic bronchitis or COPD of Phlegm-Heat type, and infection-triggered wheezing when exterior Cold and interior Heat coexist.

Q3: Is Ding Chuan Tang suitable for improving wheezing and cough with thick yellow phlegm?

For presentations of wheezing and panting, cough with copious thick yellow or sticky phlegm, chest tightness, possible mild aversion to wind, a yellow greasy tongue coating, and a slippery rapid pulse — in those whose pattern differentiation confirms exterior Cold with interior Phlegm-Heat — TCM commonly applies Ding Chuan Tang as an adjunct. It cannot replace standard asthma or emergency respiratory treatment.

Q4: Who should not take Ding Chuan Tang?

Those with pure Wind-Cold wheezing without interior Phlegm-Heat, chronic deficiency asthma from Lung-Kidney Qi or Yin deficiency, or dry cough without Phlegm are generally not suitable. Caution is required in hypertension, heart disease, and pregnancy because of Ma Huang, and Bai Guo should not be overdosed. Use should be assessed by a qualified TCM physician.

Q5: Why does this formula pair Ma Huang with Bai Guo?

Ma Huang diffuses the Lung, releases residual exterior Cold, and arrests wheezing by opening constrained Lung Qi. Bai Guo astringes the Lung, transforms Phlegm, and also arrests wheezing. The pair is “one dispersing, one astringing”: together they strengthen the anti-wheeze effect while Bai Guo prevents Ma Huang from overly scattering Lung Qi.

Q6: How does Ding Chuan Tang differ from Xiao Qing Long Tang or Su Zi Jiang Qi Tang?

Xiao Qing Long Tang treats exterior Cold with interior Cold-Phlegm (thin white watery sputum). Su Zi Jiang Qi Tang treats upper excess and lower deficiency with more Cold-Phlegm and Kidney failing to grasp Qi. Ding Chuan Tang is for the mixed pattern of residual exterior Cold plus interior Phlegm-Heat with thick yellow sputum and a yellow greasy coating.

Q7: What are the main ingredients of Ding Chuan Tang?

The classical formula consists of Ma Huang to diffuse the Lung and arrest wheezing; Bai Guo to astringe the Lung and transform Phlegm; Xing Ren, Su Zi, Kuan Dong Hua, and Ban Xia to descend Qi, stop cough, and transform Phlegm; Sang Bai Pi and Huang Qin to clear Lung Heat; and Gan Cao to harmonize.

Q8: Is Ding Chuan Tang suitable for long-term use?

No. It is an acute or short-course formula for Phlegm-Heat wheezing, often after an exterior trigger. It contains no tonifying herbs and includes Ma Huang and Bai Guo, which should not be used continuously. Once the wheeze and yellow phlegm settle, the formula should be stopped or changed to a constitutional formula.

Q9: Can Ding Chuan Tang be used when there is still a mild aversion to wind together with yellow phlegm?

Yes. That combination is a classical hallmark: residual Wind-Cold still binding the exterior while Phlegm has already transformed into Heat in the Lung. Mild chills or aversion to wind plus thick yellow phlegm and a yellow greasy coating support this formula rather than a purely exterior-Cold or purely interior-Heat prescription.

Q10: What lifestyle advice supports the use of Ding Chuan Tang?

Avoiding wind-cold exposure, reducing greasy and Phlegm-producing foods, keeping the chest warm, and resting during acute wheezing help the formula diffuse the Lung and clear Phlegm-Heat. Severe or sudden asthma attacks require immediate conventional emergency care; this formula is only an adjunct after proper pattern differentiation.

FAQ

General Questions

How do I choose the right formula?

TCM formulas are traditionally selected according to individual pattern differentiation rather than by symptom alone. If you're not sure which formula fits your presentation, take our AI Assessment below for a personalized starting point, then confirm with a qualified TCM practitioner.

What are concentrated herbal granules?

Concentrated herbal granules are made by decocting raw herbs, then extracting and concentrating the resulting liquid into a fine granule or powder form. This preserves the same active compounds as a traditional decoction while making the herbs far easier to store, measure, and prepare.

How should I take these products?

Dissolve the recommended amount of granules in hot water, stir until fully dissolved, and drink while warm — following the dosage and frequency advised by your TCM practitioner or as stated on the product packaging.

Are concentrated herbal granules equivalent to traditional decoctions?

Concentrated granules are produced from the same herbs and processed to retain their active compounds, so they are traditionally regarded as a convenient alternative to decoctions rather than a different remedy. Some practitioners note subtle differences in strength or absorption between the two forms, so your TCM practitioner may adjust dosage accordingly.

Are your products authentic?

Yes. HJMEDICAL sources its concentrated granules exclusively from established, reputable manufacturers such as Nong's and Hoi Tin, both long-standing names in the TCM granules industry, with GMP compliance stated directly on their packaging.

Are HJMEDICAL products manufactured under GMP standards?

HJMEDICAL sources its concentrated granules from established, reputable manufacturers such as Nong's and Hoi Tin, both long-standing names in the TCM granules industry. GMP compliance for these products is stated directly on their packaging.

Do you ship internationally?

Yes — we ship worldwide! Every order goes out via Hong Kong Post, and your exact shipping cost and estimated delivery time for your address are calculated and shown right at checkout, so there are never any surprises. We also offer free shipping once your order reaches our free-shipping threshold, so it's easy to stock up on your favorite formulas and save.

Can I take more than one formula at the same time?

Some formulas are traditionally combined, while others overlap or counteract each other. We recommend checking with a qualified TCM practitioner before combining formulas, especially if you are already taking other medication.

Are these products suitable during pregnancy or breastfeeding?

Some TCM formulas are not suitable during pregnancy or breastfeeding. Please consult a qualified TCM practitioner or your doctor before use if you are pregnant, trying to conceive, or nursing.

Do these products replace medical treatment?

No. These products are traditional herbal supplements intended to support wellbeing according to TCM principles — they are not a replacement for professional medical diagnosis or treatment. Please consult a qualified TCM practitioner or licensed healthcare provider before starting, stopping, or combining any treatment, especially if you have a chronic condition.

Medical Disclaimer

For general TCM education only — not medical advice. Consult a qualified TCM practitioner or licensed healthcare provider before use, especially if pregnant, nursing, on medication, or managing a chronic condition.

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