Dredging intestines and descending turbid substance (Tongfu Jiangzhuo)

"Dredging intestines and descending turbid substance" (Tongfu Jiangzhuo) is a foundational therapeutic principle in Traditional Chinese Medicine (TCM) rather than a specific molecular target like a protein or receptor. It describes a method of treatment aimed at promoting the elimination of metabolic waste products, toxins, and "turbid" pathogens through the gastrointestinal tract to alleviate systemic diseases. This principle is most frequently applied in the management of conditions where waste accumulation is a primary driver of pathology, such as chronic kidney disease (CKD), uremia, and hepatic encephalopathy. In clinical practice, this principle is implemented using pharmacological agents that stimulate bowel movements, such as Rhubarb (Da Huang) or complex herbal formulas like Da Chaihu Tang. These interventions are thought to reduce the circulating levels of metabolic byproducts like urea and creatinine by enhancing their excretion through the gut. From a modern pharmacological perspective, this approach modulates the gut-organ axes, influences the gut microbiota, and improves intestinal barrier integrity to prevent the translocation of toxins into the bloodstream. While effective for symptom management in specific syndromes, it is not a biological target in the traditional sense of drug discovery.

Other names

Tongfu JiangzhuoClearing the bowels and descending turbidityPurging the intestines and removing turbid wasteTong Fu Jiang Zhuo

Promotion of intestinal peristalsis and the excretion of nitrogenous waste and other metabolic 'turbid' substances to reduce systemic toxicity and restore physiological balance.