Jing Fang Bai Du San

Schizonepeta and Saposhnikovia Powder to Overcome Pathogenic Influences · 荆防败毒散

Also known as: Jing Fang Bai Du San, Schizonepeta and Siler Formula, Schizonepeta and Ledebouriella Combination

A classical formula used to relieve the early stages of colds and flu caused by exposure to Wind-Cold and Dampness, with symptoms such as chills, fever, headache, body aches, nasal congestion, and cough with white phlegm. It is also commonly used for early-stage skin conditions such as boils and hives when accompanied by chills and body aches.

Origin She Sheng Zhong Miao Fang (摄生众妙方, Multitude of Marvelous Formulas for Sustaining Life) by Zhang Shiche, Volume 8 — Míng dynasty, 1550 CE
Composition 11 herbs
Jing Jie
King
Jing Jie
Fang Feng
King
Fang Feng
Qiang Huo
King
Qiang Huo
Du Huo
Deputy
Du Huo
Chai Hu
Deputy
Chai Hu
Chuan Xiong
Deputy
Chuan Xiong
Qian Hu
Assistant
Qian Hu
Jie Geng
Assistant
Jie Geng
+3
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Educational content Consult qualified TCM practitioners for diagnosis and treatment

Patterns Addressed

In TCM, symptoms don't appear randomly — they cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Jing Fang Bai Du San is designed to correct these specific patterns.

Why Jing Fang Bai Du San addresses this pattern

This is the primary pattern this formula treats. When Wind, Cold, and Dampness invade the body's exterior together, they obstruct the protective Qi and block the pores, causing chills, fever without sweating, and body aches. The Cold component causes the pain and stiffness of the head, neck, and limbs, while Dampness contributes heaviness, nasal congestion, and a greasy white tongue coating. The formula's team of acrid, warm, exterior-releasing herbs (Jing Jie, Fang Feng, Qiang Huo, Du Huo, Chai Hu, Chuan Xiong) powerfully opens the exterior to drive out Wind-Cold, while Fu Ling and Zhi Ke address the Dampness and Qi stagnation internally. The broad, balanced approach makes this formula effective for cases where all three pathogenic factors are present simultaneously.

A practitioner would look for one or more of these signs

Chills

Strong chills, often more prominent than fever

Fever

Fever with chills and absence of sweating

Headaches

Headache with stiffness and pain in the neck

Body Aches

Generalized body aches and joint soreness

Nasal Congestion

Nasal congestion with heavy, muffled voice

Hypochondrial Pain That Is Worse On Coughing And Breathing

Cough with white phlegm and chest tightness

Lack Of Sweating

Absence of sweating despite fever

Commonly Prescribed For

These conditions can arise from the patterns above. A practitioner would consider Jing Fang Bai Du San when these conditions are specifically caused by those patterns — not for all cases of these conditions.

Arises from: Wind-Cold-Damp

TCM Interpretation

In TCM, the common cold is understood as an invasion of external pathogenic factors (Wind, Cold, Heat, or Dampness) that overwhelm the body's protective Qi at the surface. When Wind-Cold is the main culprit, it closes the pores and obstructs the flow of protective Qi, leading to chills, headache, body aches, nasal congestion, and the absence of sweating. When Dampness is also involved (common in damp weather or in people with a pre-existing tendency toward internal Dampness), additional symptoms like a heavy sensation in the body, a thick white tongue coating, and phlegm-producing cough appear. The Lung's ability to disperse and descend Qi is impaired, leading to cough and nasal congestion.

Why Jing Fang Bai Du San Helps

Jing Fang Bai Du San addresses the common cold through multiple coordinated mechanisms. The King herbs Jing Jie, Fang Feng, and Qiang Huo powerfully open the pores and drive Wind-Cold outward through sweating. Chai Hu and Chuan Xiong assist in reducing fever and relieving the headache. Qian Hu and Jie Geng restore the Lung's descending and dispersing functions to clear nasal congestion and cough. Fu Ling drains internal Dampness. This broad-spectrum approach makes it especially suitable for colds where Wind, Cold, and Dampness are all present, with prominent body aches, chills, and a heavy or congested feeling.

Also commonly used for

Eczema

When accompanied by Wind-Cold-Dampness exterior signs

Lumps

Early stage with exterior Wind-Cold signs

Bronchitis

Acute bronchitis with cough, white phlegm, and Wind-Cold exterior pattern

Herpes Zoster Infection

Early stage with exterior Wind-Cold signs

Atopic Dermatitis

When Wind-Cold-Dampness predominates

Mastitis

Early-stage with chills and exterior signs

Viral Conjunctivitis

Wind-Cold type with tearing, photophobia, and exterior symptoms

Rheumatoid Arthritis

Wind-Cold-Dampness type with joint pain and exterior signs

What This Formula Does

Every TCM formula has a specific set of actions — here's what Jing Fang Bai Du San does in the body, explained in both everyday and TCM terms

Therapeutic focus

In practical terms, Jing Fang Bai Du San is primarily used to support these areas of health:

TCM Actions

In TCM terminology, these are the specific therapeutic actions that Jing Fang Bai Du San performs to restore balance in the body:

How It Addresses the Root Cause

TCM doesn't just suppress symptoms — it aims to resolve the underlying imbalance. Here's how Jing Fang Bai Du San works at the root level.

This formula addresses the pathomechanism of external Wind-Cold-Dampness invading the body's surface (the Exterior or biao). When Wind, Cold, and Dampness attack together, they obstruct the body's protective Qi (Wei Qi) at the skin and muscle layers, blocking the pores and preventing normal sweating. This blockage produces the characteristic symptoms: chills (because protective Qi cannot warm the exterior), fever (because pathogenic Qi and defensive Qi are locked in battle), headache and neck stiffness (Wind-Cold ascending along the Taiyang channel), and heavy, aching limbs and joints (Dampness lodging in the muscles and meridians). The Lungs, which govern the skin and the descending and dispersing of Qi, become congested, leading to nasal obstruction, cough, and white phlegm as the Lung's distribution of fluids stagnates.

In more severe presentations, this same mechanism applies to the early stages of epidemic diseases (pestilential Qi), where a toxic pathogenic influence attacks the exterior before it has had time to transform into interior Heat. It also explains the formula's use for skin sores and boils in early stages: when Wind-Cold-Damp toxins lodge in the skin and flesh, causing local swelling, redness, and pain, along with systemic chills and fever. The key insight is that the pathogen is still at the surface. If it can be vented outward through sweating and the dispersal of stagnant Qi, the body's own defenses can resolve the problem before the pathogen drives deeper into the interior.

Formula Properties

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

Overall Temperature

Slightly Warm

Taste Profile

Predominantly acrid (pungent) with mild bitter undertones — acrid to open the pores and disperse external pathogens, bitter to direct Qi downward and dry Dampness, with a slight sweet note from Licorice and Poria to harmonize.

Channels Entered

Lung Bladder Liver Spleen

Ingredients

11 herbs

The herbs that make up Jing Fang Bai Du San, organized by their role in the prescription

King — Main ingredient driving the formula
Deputy — Assists and enhances the King
Assistant — Supports or moderates other herbs
Envoy — Directs the formula to its target
Kings — Main ingredient driving the formula
Jing Jie

Jing Jie

Japanese catnip

Dosage 4.5 - 10g
Temperature Neutral
Taste Pungent
Organ Affinity Liver, Lungs

Role in Jing Fang Bai Du San

Disperses Wind-Cold from the exterior, vents rashes, and reduces swelling of sores. Together with Fang Feng, it forms the signature herb pair of this formula, powerfully releasing the exterior and driving out pathogenic factors lodged in the skin and muscles.
Fang Feng

Fang Feng

Saposhnikovia roots

Dosage 4.5 - 10g
Temperature Warm
Taste Pungent, Sweet
Organ Affinity Urinary Bladder, Liver, Spleen

Role in Jing Fang Bai Du San

Expels Wind, overcomes Dampness, and alleviates pain. Its name literally means 'guard against Wind,' reflecting its broad ability to dispel Wind pathogens from any part of the body. Paired with Jing Jie, it strengthens the exterior-releasing and anti-inflammatory action of the formula.
Qiang Huo

Qiang Huo

Notopterygium roots

Dosage 4.5 - 10g
Temperature Warm
Taste Bitter, Pungent
Organ Affinity Urinary Bladder, Kidneys

Role in Jing Fang Bai Du San

Releases the exterior, scatters Cold, expels Wind-Dampness, and alleviates pain, particularly in the upper body and the Tai Yang channel. It is a key herb for headache, neck stiffness, and upper body aches caused by Wind-Cold-Dampness.
Deputies — Assists and enhances the King
Du Huo

Du Huo

Pubescent angelica roots

Dosage 4.5 - 10g
Temperature Warm
Taste Bitter, Pungent
Organ Affinity Urinary Bladder, Kidneys

Role in Jing Fang Bai Du San

Expels Wind-Dampness and alleviates pain in the lower body and Shao Yin channel. Paired with Qiang Huo, it ensures that Wind-Cold-Dampness is expelled from both the upper and lower parts of the body.
Chai Hu

Chai Hu

Bupleurum roots

Dosage 4.5 - 10g
Temperature Cool
Taste Bitter
Organ Affinity Gallbladder, Liver

Role in Jing Fang Bai Du San

Releases the exterior and reduces fever by venting pathogenic factors outward. It reinforces the exterior-releasing action of the King herbs and addresses alternating chills and fever.
Chuan Xiong

Chuan Xiong

Szechuan lovage roots

Dosage 4.5 - 6g
Temperature Warm
Taste Pungent
Organ Affinity Gallbladder, Liver, Pericardium

Role in Jing Fang Bai Du San

Invigorates Blood, expels Wind, and alleviates pain, especially headache. It supports the King herbs by moving both Qi and Blood to relieve pain throughout the body.
Assistants — Supports or moderates other herbs
Qian Hu

Qian Hu

Hogfennel roots

Dosage 4.5 - 10g
Temperature Cool
Taste Bitter, Pungent
Organ Affinity Spleen, Lungs

Role in Jing Fang Bai Du San

Directs Lung Qi downward and expels Phlegm. It addresses cough and chest congestion caused by Wind-Cold impairing the Lung's descending function.
Jie Geng

Jie Geng

Platycodon roots

Dosage 4.5 - 10g
Temperature Neutral
Taste Bitter, Pungent
Organ Affinity Lungs

Role in Jing Fang Bai Du San

Opens and disseminates Lung Qi, expels Phlegm, and benefits the throat. Paired with Zhi Ke, one lifts and one descends, restoring the normal circulation of Qi in the chest.
Zhi Ke

Zhi Ke

Bitter oranges

Dosage 4.5 - 10g
Temperature Warm
Taste Bitter, Pungent, Sour
Organ Affinity Spleen, Stomach

Role in Jing Fang Bai Du San

Moves Qi downward and relieves chest and abdominal distension. Paired with Jie Geng, it helps regulate the ascending and descending of Qi to relieve chest tightness.
Fu Ling

Fu Ling

Poria-cocos mushrooms

Dosage 4.5 - 10g
Temperature Neutral
Taste Sweet
Organ Affinity Heart, Kidneys, Lungs, Spleen

Role in Jing Fang Bai Du San

Promotes urination to drain Dampness and strengthens the Spleen. It addresses the Dampness component of the pathology from the interior, complementing the exterior-releasing herbs that expel Dampness through sweating.
Envoy — Directs the formula to its target
Gan Cao

Gan Cao

Liquorice

Dosage 1.5 - 3g
Temperature Neutral
Taste Sweet
Organ Affinity Heart, Lungs, Spleen, Stomach

Role in Jing Fang Bai Du San

Harmonizes all the other herbs in the formula, moderates the drying and dispersing nature of the Wind-expelling herbs, and tonifies the Spleen Qi to support the body during the exterior-releasing process.

Why This Combination Works

How the herbs in Jing Fang Bai Du San complement each other

Overall strategy

This formula addresses an exterior pattern where Wind, Cold, and Dampness have invaded the body's surface and muscles, obstructing the flow of Qi and causing chills, fever, headache, body aches, and congestion. The prescription strategy uses a broad team of acrid, warm, exterior-releasing herbs to drive out the pathogens through sweating, supported by herbs that resolve Dampness internally and restore proper Qi circulation in the chest and Lungs.

King herbs

Jing Jie and Fang Feng are the signature pair that gives this formula its name. Together they powerfully disperse Wind-Cold from the skin and muscle layer, vent rashes, and reduce swelling from sores. Qiang Huo joins them as a co-King, contributing strong exterior-releasing power specifically targeting Wind-Cold-Dampness in the upper body, head, and neck, with potent pain-relieving action.

Deputy herbs

Du Huo complements Qiang Huo by expelling Wind-Dampness from the lower body and legs, ensuring full-body coverage. Chai Hu reinforces the exterior-releasing action and reduces fever. Chuan Xiong moves both Qi and Blood, enhancing pain relief throughout the body and especially for headache.

Assistant herbs

Qian Hu and Jie Geng work as a pair to address Lung congestion: Qian Hu descends Lung Qi and expels Phlegm, while Jie Geng opens the Lung and lifts Qi upward to benefit the throat. Zhi Ke descends Qi to relieve chest distension, forming a complementary ascending-descending pair with Jie Geng. Fu Ling drains Dampness through urination, addressing internal Dampness from a different route than the diaphoretic herbs.

Envoy herbs

Gan Cao harmonizes all the ingredients, protecting the Stomach from the drying nature of so many acrid herbs, and mildly tonifies Qi to support the body's effort to expel the pathogen.

Notable synergies

The Jing Jie and Fang Feng pair produces a synergistic anti-inflammatory and fever-reducing effect that modern pharmacological research has confirmed is greater than either herb alone. The Qiang Huo and Du Huo pair ensures Wind-Cold-Dampness is addressed in both the upper and lower body. The Jie Geng and Zhi Ke pair restores normal ascending and descending of Qi in the chest, relieving both cough and chest tightness. Chai Hu and Qian Hu together address both the exterior fever and the Lung congestion from complementary angles.

How to Prepare

Traditional preparation instructions for Jing Fang Bai Du San

In the original source text, this formula was prepared as a coarse powder (散剂). Each dose of 15 to 30 grams of the powder is decocted in water with 3 slices of fresh ginger (Sheng Jiang) and 3 grams of mint (Bo He) as adjuncts. Strain and take warm.

In modern clinical practice, the formula is more commonly prepared as a decoction (Tang). Combine the herbs with approximately 600 ml of water, bring to a boil, and simmer for 20 to 25 minutes. Strain and divide into two servings, taken warm after meals. Fresh ginger (3 slices) and Bo He (3g, added in the last 5 minutes) are typically included in the decoction.

Common Modifications

How practitioners adapt Jing Fang Bai Du San for specific situations

Added
Jin Yin Hua

9-15g, clears Heat-Toxin

Lian Qiao

9-12g, clears Heat-Toxin and reduces swelling

Pu Gong Ying

15-30g, clears Heat-Toxin from skin sores

Adding Heat-Toxin-clearing herbs addresses the toxic component that drives abscess and boil formation, while the base formula continues to dispel the Wind-Cold-Dampness exterior pattern. This combination covers both the exterior obstruction and the developing Heat-Toxin.

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

Contraindications

Situations where Jing Fang Bai Du San should not be used or requires extra caution

Avoid

Exterior Wind-Heat patterns: This formula is warm and acrid in nature and is designed for Wind-Cold invasion. It should not be used for sore throat with thirst, yellow tongue coating, and rapid pulse indicating exterior Heat.

Avoid

Yin deficiency with internal Heat: The formula's warm, drying, dispersing herbs would further deplete Yin fluids and worsen symptoms such as night sweats, dry mouth, and low-grade fever.

Avoid

Damp-Heat patterns in the intestines: If dysentery or diarrhea is caused by Damp-Heat steaming in the intestines (rather than Cold-Damp with an exterior component), this warm dispersing formula would aggravate the condition.

Caution

Excessive sweating or spontaneous sweating: The formula is strongly diaphoretic. In patients who already sweat freely, it risks further damaging the exterior Qi and body fluids.

Caution

Qi or Blood deficiency without exterior pathogen: The formula is primarily dispersing and contains no significant tonifying herbs. Without an active external pathogen to release, it would scatter the body's righteous Qi. For Qi-deficient patients with external pathogens, Ren Shen Bai Du San (which includes Ginseng) is more appropriate.

Caution

Patients with interior Heat or strong constitutional Heat: Those who tend toward internal Heat with a red face, irritability, and a red tongue should use this formula with caution or not at all, as its warm acrid herbs may intensify Heat.

Special Populations

Important considerations for pregnancy, breastfeeding, and pediatric use

Pregnancy

Use with caution during pregnancy. The formula is strongly dispersing and diaphoretic, which can deplete Qi and fluids. Qiang Huo (Notopterygium) and Du Huo (Pubescent Angelica) are acrid and drying, and Chuan Xiong (Ligusticum) is a Blood-moving herb that promotes circulation and could theoretically stimulate uterine activity. While none of the herbs are classified as strongly abortifacient, the combined dispersing and Blood-moving action warrants caution. Should only be used during pregnancy when a genuine Wind-Cold-Damp exterior pattern is present, for the shortest duration necessary, and under professional guidance.

Breastfeeding

Generally considered compatible with short-term use during breastfeeding for acute conditions, though formal safety data is lacking. The formula's acrid, warm, dispersing herbs (Jing Jie, Fang Feng, Qiang Huo, Du Huo) may pass into breast milk in small amounts, potentially causing mild irritability or loose stools in sensitive infants. Chuan Xiong (Ligusticum), due to its Blood-moving properties, should be noted. Gan Cao (Licorice) in small amounts is unlikely to cause issues but could theoretically affect electrolytes with prolonged use. Use the lowest effective dose for the shortest duration. If the nursing infant develops any unusual symptoms (fussiness, diarrhea, rash), discontinue and consult a practitioner.

Children

Jing Fang Bai Du San has a long history of pediatric use in China, particularly for childhood colds, influenza, measles in early stages, mumps, and skin eruptions. Classical texts such as the Xiao Er Yao Zheng Zhi Jue already employed the parent formula Ren Shen Bai Du San for children. Dosage should be reduced according to age and body weight: roughly one-quarter to one-third of the adult dose for children aged 3-6, and one-half for children aged 7-12. For very young children (under 3), use only under close professional supervision with significantly reduced doses. Because the formula is strongly dispersing, it should be used for short courses (typically 1-3 days for acute conditions in children), as prolonged sweating can rapidly deplete a child's fluids and Qi. Monitor carefully for excessive sweating.

Drug Interactions

If you are taking pharmaceutical medications, be aware of these potential interactions with Jing Fang Bai Du San

Gan Cao (Licorice root): Contains glycyrrhizin, which can cause pseudoaldosteronism (potassium loss and sodium retention). May interact with diuretics (increasing risk of hypokalemia), cardiac glycosides like digoxin (hypokalemia potentiates digoxin toxicity), corticosteroids (additive potassium-depleting effects), and antihypertensive medications (sodium retention may counteract blood pressure lowering). Risk increases with prolonged use or higher doses.

Chai Hu (Bupleurum): Contains saikosaponins, which have been shown to influence hepatic cytochrome P450 enzyme activity. This could theoretically alter the metabolism of drugs processed through the liver, including immunosuppressants, statins, and certain anticonvulsants. Clinical significance at standard formula doses is uncertain but warrants awareness.

Chuan Xiong (Ligusticum): Has mild antiplatelet activity. May potentiate the effects of anticoagulants (warfarin, heparin) and antiplatelet drugs (aspirin, clopidogrel), potentially increasing bleeding risk. Patients on blood-thinning medications should inform their prescriber.

General note: As a diaphoretic formula, it may temporarily alter absorption or distribution of concurrently taken oral medications. It is advisable to separate the timing of this formula from Western medications by at least 1-2 hours.

Usage Guidance

Practical advice for getting the most out of Jing Fang Bai Du San

Best time to take

Warm, 2-3 times daily between meals; best taken shortly after onset of symptoms, ideally followed by resting under a light blanket to promote gentle sweating

Typical duration

Acute use: 1-5 days, reassessed once symptoms resolve or change character

Dietary advice

While taking this formula, avoid cold and raw foods (salads, ice cream, cold beverages, raw fruit) as these contract the pores and obstruct the sweating mechanism the formula relies on. Avoid greasy, heavy, or rich foods (deep-fried dishes, fatty meats, dairy) as these generate Dampness and Phlegm internally, counteracting the formula's expelling action. Light, warm, easily digestible foods are ideal: plain rice porridge (congee), clear soups, lightly cooked vegetables, and warm water. A small amount of fresh ginger and scallion (green onion) in soup can gently support the formula's exterior-releasing effect. Avoid alcohol, which generates Heat and Dampness.

Jing Fang Bai Du San originates from She Sheng Zhong Miao Fang (摄生众妙方, Multitude of Marvelous Formulas for Sustaining Life) by Zhang Shiche, Volume 8 Míng dynasty, 1550 CE

Classical Texts

Key passages from the classical Chinese medical texts that first described Jing Fang Bai Du San and its clinical use

方歌 (Formula Song):
「荆防败毒草苓芎,羌独柴前枳桔同;疮疡痢疾表寒证,散风祛湿功效宏。」
"Jing Fang Bai Du [San with] Cao, Ling, Xiong; Qiang, Du, Chai, Qian, Zhi, Jie together; for sores, dysentery, and exterior Cold patterns, its effect of dispersing Wind and expelling Dampness is vast."

《温病条辨》(Systematic Differentiation of Warm Diseases) by Wu Jutong, on the parent formula Ren Shen Bai Du San:
「以人参为君,坐镇中州,为督战之帅,以二活、二胡合芎䓖从半表半里之际,领邪外出,喻氏所谓逆流挽舟者此也。」
"With Ginseng as sovereign, stationed firmly in the Middle Burner as the commanding general, the two Huo [Qiang Huo and Du Huo] and two Hu [Chai Hu and Qian Hu] together with Chuan Xiong lead the pathogen out from the half-exterior, half-interior level. This is what [Qing-dynasty physician] Yu [Chang] called 'sailing against the current to rescue the ship.'"

《本草正义》(Orthodox Materia Medica) on the formula's clinical range:
Described Jing Fang Bai Du San as a "四时感冒之神剂" — "a divine formula for colds of all four seasons."

《医宗说约》(Medical Compendium in Brief):
「如看病人纯是表证,用荆防败毒散汗散之。」
"If the patient presents with a purely exterior pattern, use Jing Fang Bai Du San to release [the pathogen] through sweating."

Historical Context

How Jing Fang Bai Du San evolved over the centuries — its origins, lineage, and place in the broader tradition of Chinese medicine

Jing Fang Bai Du San originates from the Ming dynasty text She Sheng Zhong Miao Fang (摄生众妙方, "Multitude of Marvelous Formulas for Sustaining Life"), compiled by Zhang Shiche (张时彻) around 1550 AD. It is a direct modification of the famous Ren Shen Bai Du San (人参败毒散, "Ginseng Powder to Overcome Pathogenic Influences"), which first appeared in the Song dynasty Tai Ping Hui Min He Ji Ju Fang (太平惠民和剂局方) and was later recorded in Qian Yi's Xiao Er Yao Zheng Zhi Jue. The modification replaced Ginseng (Ren Shen), fresh Ginger (Sheng Jiang), and Mint (Bo He) with Schizonepeta (Jing Jie) and Saposhnikovia (Fang Feng), shifting the formula's emphasis from supporting Qi-deficient patients toward a more powerful exterior-releasing action for those without significant underlying deficiency.

The parent formula Ren Shen Bai Du San was famously praised by the Qing dynasty physician Yu Chang (喻昌) in his Yi Men Fa Lu (医门法律), who ranked it the "first formula for treating epidemic diseases" and renamed it "Huo Ren Bai Du San" (活人败毒散, "Powder to Save Lives and Overcome Pathogenic Influences"). Yu Chang also articulated the celebrated "sailing against the current" (ni liu wan zhou, 逆流挽舟) treatment strategy for dysentery with exterior symptoms, using this formula family to draw sunken pathogens back out through the surface. During the COVID-19 pandemic, Jing Fang Bai Du San received renewed attention: Taiwan's National Research Institute of Chinese Medicine used it as the basis for developing "NRICM101" (Taiwan Qing Guan Yi Hao, 清冠一号), and multiple Chinese provinces including Sichuan, Yunnan, Jiangsu, and Shandong listed it in their official COVID-19 treatment protocols.

Modern Research

2 published studies investigating the pharmacological effects or clinical outcomes of Jing Fang Bai Du San

1

Network pharmacology and molecular docking study of JFBDS in COVID-19 treatment (2022)

Li J, Zhang K, Bao J, Yang J, Wu C. International Journal of Medical Sciences, 2022, 19(2): 213-224.

This computational study used network pharmacology and molecular docking to explore how Jing Fang Bai Du San might work against SARS-CoV-2. The analysis identified key active ingredients (acacetin, wogonin, isorhamnetin) and proposed that the formula targets multiple inflammatory pathways (Toll-like receptor, MAPK, NF-kB) and may interfere with viral entry by binding to ACE2 and spike protein. This is a theoretical study only and does not constitute clinical evidence of efficacy against COVID-19.

2

Active fractions from Jingfang Baidu Powder alleviate Klebsiella-induced pneumonia (preclinical, 2024)

Sun C, Xu Y, Xu G, Ji X, Jiang P, He Y. Journal of Ethnopharmacology, 2024.

This preclinical animal study found that active fractions extracted from Jing Fang Bai Du San reduced lung tissue damage in mice with Klebsiella pneumonia. The mechanism involved inhibition of the TLR4/Myd88/NF-kB-ERK inflammatory signaling pathway and reduction of lung cell apoptosis. These findings support the formula's traditional use for respiratory infections but have not been confirmed in human trials.

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