Shi Zao Tang (Ten Jujube Decoction)

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Indications

Western Uses:

• What is Shi Zao Tang used for in modern practice?

  In modern practice, Shi Zao Tang and its toxic chief herbs are studied mainly as a reference point for conditions involving large-volume fluid accumulation — malignant pleural effusion, malignant ascites, and cirrhotic ascites — contexts where Western medicine recognizes analogous fluid-retention states. Because Gan Sui, Da Ji, and Yuan Hua are potent, toxic purgatives, this correlate is offered strictly as a reference to the formula’s traditional use, not as evidence that it treats any diagnosed disease.

  Contemporary research (see research) is preclinical: animal studies of vinegar-processing to reduce intestinal toxicity while preserving water-expelling effect in ascites models, plus phytochemical and toxicology reviews of the individual toxic herbs. No human clinical trials establishing safety or efficacy were located. Any use for a diagnosed fluid-retention condition belongs with a qualified practitioner and appropriate medical care; the toxicity of the chief herbs makes self-administration inappropriate.

  Source: traditional-use correlates summarized from Bensky & Barolet, Formulas & Strategies, cross-checked against PubMed (see research). Reference only, not a treatment claim.

Originally Appeared In:

• On Cold Damage (Shang Han Lun)

Notes:

• How is Shi Zao Tang different from Zhou Che Wan?

  Zhou Che Wan (Vessel and Vehicle Pill) is built on the Shi Zao Tang core — Gan Sui, Da Ji, and Yuan Hua — but adds Da Huang, Qian Niu Zi, Mu Xiang, Qing Pi, and Chen Pi, turning the pure water-purging decoction into a pill that combines purgation with qi-regulation. Shi Zao Tang is reserved, in the classical literature, for the most severe, acute presentations of suspended fluid or large-volume effusion in a robust patient; Zhou Che Wan is described for lung congestion with prominent cough and wheezing that does not require Shi Zao Tang’s full drastic force.

  Source: Bensky & Barolet, Formulas & Strategies (formula comparison, “Formulas that Drastically Expel Water”). Encyclopedia reference.

Clinical Studies & Research:

• Is there modern research on Shi Zao Tang?

  Yes, but it is confined to preclinical toxicology and processing studies, not human clinical trials. Recent work has focused on reducing the intestinal toxicity of the formula’s toxic chief herbs (commonly via vinegar-processing) while preserving water-expelling effect in animal models of ascites, alongside phytochemical and toxicology reviews of the individual herbs.

  • Whole-formula toxicity reduction (preclinical): vinegar-processed Shi Zao Tang reduced intestinal toxicity while preserving water-expelling efficacy in a malignant-ascites rat model (PMID 41044610 / PMC 12495871).
  • Gan Sui + Da Zao detoxification (preclinical): a metabonomic study found that co-administering Euphorbia kansui (Gan Sui) with jujube (Da Zao) measurably reduced toxicity markers versus Gan Sui alone, supporting the classical rationale for the jujube vehicle (PMID 23280778).
  • Gan Sui dosage-toxicity-efficacy (preclinical): a factor-analysis study of Kansui and licorice in a malignant pleural effusion rat model examined the classical Gan Sui/Gan Cao incompatibility (PMID 27084456).
  • Jing Da Ji / Euphorbia pekinensis toxicology (review): a comprehensive review of phytochemistry, pharmacology, and toxicology naming diterpenoids as the principal toxic and active constituents (PMID 39205630).
  • Yuan Hua / Daphne genkwa (review): an ethnopharmacology, phytochemistry, and pharmacology review covering the daphnane diterpenoids responsible for both bioactivity and toxicity (PMID 38906384).

  Sources: PubMed/PMC 41044610 (PMC 12495871); PubMed 23280778; PubMed 27084456; PubMed 39205630; PubMed 38906384. Research context only; no human clinical-trial evidence was located, and none of these findings constitute a treatment claim.