1. Classical Literature

Tiao Wei Cheng Qi Tang (调胃承气汤), or Regulate the Stomach and Order the Qi Decoction, is a classical formula from Zhang Zhongjing’s Shang Han Lun (Treatise on Cold Damage). It belongs to the category of mild purgative formulas that clear Heat accumulation while harmonizing the Stomach.

This is the gentlest of the three classic Cheng Qi Tang formulas, designed for mild Yang Ming organ Heat with dryness. Typical signs include constipation with dry stools, mild abdominal fullness or discomfort, thirst, irritability, and a yellow tongue coating.

Combining Da Huang to drain Heat and promote bowel movement with Mang Xiao to soften hardness and Zhi Gan Cao to moderate the purgative action and protect the Middle Burner, Tiao Wei Cheng Qi Tang gently clears accumulated Heat, moistens dryness, regulates Stomach Qi, and restores smooth downward movement without harsh force.

2. Digestive System Conditions

Tiao Wei Cheng Qi Tang is a versatile formula in TCM, indicated for a diverse range of conditions primarily characterized by internal heat accumulation and dryness. Its therapeutic scope extends beyond simple constipation to encompass critical states requiring swift intervention.

The formula effectively addresses acute intestinal obstruction caused by a Yangming bowel excess pattern, alleviating severe symptoms like abdominal pain, distension, vomiting, and cessation of bowel movements. It is also highly effective for functional constipation, particularly when characterized by dry, bound stools due to stomach-intestine dryness-heat, promoting peristalsis and restoring regular bowel function.

3. Neurological Conditions

In cases of disorders of consciousness arising from Yangming bowel excess, Tiao Wei Cheng Qi Tang can be transformative. When patients exhibit high fever, delirious speech, and agitation, and diagnosis confirms internal binding of Yangming dryness-heat disturbing the spirit-mind, the formula clears the heat bind, allowing Yangming bowel qi to flow freely and thereby alleviating neurological symptoms.

4. Other Conditions

Post-surgical gastrointestinal dysfunction, such as abdominal distension and constipation, can be effectively managed with this formula. Furthermore, it aids in clearing residual heat after externally contracted febrile diseases, especially when stomach-intestine dryness-heat persists internally, helping to regulate the digestive system and prevent further complications.

1. Pathomechanism

The formula primarily targets internal binding of Yangming dryness-heat. When external pathogens transform into heat, they interact with waste matter in the intestines, leading to dry, bound stools and obstructed bowel qi. This results in symptoms like abdominal distension, pain, tidal fever, and delirious speech.

2. Actions

Tiao Wei Cheng Qi Tang gently drains heat bind. Dahuang and Mangxiao work together to clear dry stools and excess heat from the intestines, promoting the free flow of Yangming bowel qi and alleviating symptoms. Gancao harmonizes the intense purging, protecting upright qi and ensuring balanced therapeutic effects without excessive depletion.

3. Indications

It treats Yangming disease patterns characterized by stomach and intestine dryness-heat. Key indications include constipation, epigastric and abdominal fullness and distension, fever, thirst, vexation, and delirious speech. The tongue typically presents with a true yellow coating, and the pulse is slippery and rapid. It can also be applied to Yangming channel heat or heat reversal patterns when accurately differentiated.

1. Pharmacological Research

Tiao Wei Cheng Qi Tang (Regulate the Stomach and Order the Qi Decoction) is a gentle yet effective purgative formula in Traditional Chinese Medicine, derived as a milder variation of Da Cheng Qi Tang.

It excels at promoting bowel movement to clear accumulated heat and stagnation while gently harmonizes the stomach. This formula is particularly suitable for patterns of stomach heat that manifest with symptoms such as sore throat, dry mouth, constipation, irritability, and abdominal fullness. By purging heat downward and regulating the stomach and intestines, Tiao Wei Cheng Qi Tang helps restore normal qi flow and digestive function, promotes bowel movement without overly depleting the body’s vital energy.

Studies show Dahuang's anthraquinones offer purgative, antibacterial, and anti-inflammatory effects. Mangxiao enhances intestinal motility, while Gancao modulates immunity and shields gastric mucosa, working synergistically.

2. Clinical Efficacy

Clinical studies show Tiao Wei Cheng Qi Tang is effective for digestive disorders (functional constipation, intestinal obstruction), improving symptoms and quality of life, and has shown benefits in some neurological conditions—providing additional evidence and clinical uses for the formula.

3. Mechanisms of Action

Modern research suggests actions via regulation of the intestinal microbiome, enhancement of intestinal motility, and modulation of the neuroendocrine system; expanding mechanistic understanding supports optimization of clinical use and development of new treatments.