Yu Quan San

Classical TCM Formula Profile

Part of the HJMEDICAL TCM Discovery Center

玉泉散 · Yù Quán Sàn

A classical formula for intense thirst and polyuria from Yin deficiency and depleted fluids.

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Quick Facts

Formula Category
Yin-Tonifying Formulas
Primary Pattern
Yin Deficiency
Primary Function
Generate fluids, stop thirst, tonify Qi
Primary Therapeutic Principle
Generate fluids and tonify Qi for thirst from Yin deficiency
Classical Source
Classical TCM formulary
Available as Granules
Yes

Formula Overview

A classical formula for intense thirst and polyuria from Yin deficiency and depleted fluids.

Therapeutic Principle

Traditionally selected for intense thirst from Yin deficiency and fluid depletion, rather than Qi-Yin deficiency with sweat, Kidney Yin tonic patterns, or Yangming excess heat thirst.

Composition: Sovereign, Minister, Assistant, Envoy

Every herb in the formula, grouped by the job it does in the classical hierarchy.

Classical Composition

  • Radix Trichosanthis (Tian Hua Fen) 15g
  • Radix Puerariae (Ge Gen) 12g
  • Radix Ophiopogonis (Mai Dong) 12g
  • Radix et Rhizoma Ginseng (Ren Shen) 6g
  • Poria (Fu Ling) 9g
  • Fructus Schisandrae (Wu Wei Zi) 6g
  • Radix et Rhizoma Glycyrrhizae (Gan Cao) 3g

Dosages follow the classical source and are shown for study, not as a prescription.

Related Conditions

Related Health Topics

Actions

  • Boosts qi
  • generates fluids
  • and treats thirst from qi and yin injury.

Indications

  • This formula is indicated for injured qi and fluids with constrained heat, in thirst-type presentations.
  • Signs and symptoms include thirst, frequent urination, and fatigue.

Tongue & pulseThe pulse is fine and rapid or deficient.

Traditional Pathogenesis

Cause & mechanism

  • This pattern is due to yin-fluid insufficiency that fails to moisten and restrain yang.
  • Qi and fluids both injured, with constrained heat, produce thirst, frequent urination and fatigue resembling wasting-thirst presentations.

Clinical presentation

  • Yin deficiency generates interior heat, producing dry throat, night sweating, a red tongue with little coating, and a fine, rapid pulse.

Treatment strategy

  • The correct method is to enrich yin, moisten dryness, and clear deficiency heat.
  • In this formula the emphasis is to generate fluids and tonify Qi for thirst from Yin deficiency.

How does this formula compare?

Compare Yu Quan SanSheng Mai SanLiu Wei Di Huang WanBai Hu Tang
Primary Function Generate fluids, stop thirst, tonify QiTonify Qi, generate fluids, astringe YinNourish Kidney YinClear Qi-aspect heat, generate fluids, stop thirst
Formula Category Yin-Tonifying FormulasQi-Tonifying FormulasYin-Tonifying FormulasHeat-Clearing Formulas
Typical TCM Pattern Yin DeficiencyQi DeficiencyKidney Yin DeficiencyStomach Heat
Main Conditions Dry Mouth & ThroatFatigue & Low Energy·Spontaneous Sweating·Dry Mouth & Throat·PalpitationsDizziness & Vertigo·Tinnitus·Night Sweats·Fatigue & Low EnergyFever·Dry Mouth & Throat·Spontaneous Sweating
Main Herbs Kudzu Root·Trichosanthes Root·Ophiopogon Tuber·Ginseng Root·Poria / HoelenGinseng Root·Ophiopogon Tuber·Schisandra FruitPrepared Rehmannia Root·Cornus Fruit·Chinese Yam·Alisma Rhizome·Moutan Bark / Tree Peony BarkGypsum·Anemarrhena Rhizome·Licorice Root·Non-glutinous Rice
Classical Source Classical TCM formularyNei Wai Shang Bian Huo Lun (Li Dongyuan) / Yi Xue Qi YuanXiao Er Yao Zheng Zhi Jue (Qian Yi, Song dynasty) / later popularisedShang Han Lun (Zhang Zhongjing, Eastern Han)

Clinical Perspective

Yu Quan San, Sheng Mai San, Liu Wei Di Huang Wan and Bai Hu Tang address thirst or fluid damage. Sheng Mai San generates fluids and astringes Qi; Liu Wei Di Huang Wan tonifies Kidney Yin; Bai Hu Tang clears Yangming heat with intense thirst. Yu Quan San generates fluids and tonifies Qi for thirst from Yin deficiency and depleted fluids.

Clinical Differentiation

  • Yu Quan San is used for injured qi and fluids with constrained heat in thirst-type presentations.
  • It is distinguished from Bai Hu Tang (blazing qi-level heat) and from Liu Wei Di Huang Wan or Sheng Mai San used for yin or qi-fluid injury without the same thirst-wasting frame.

Safety notes: This formula is not a substitute for pattern differentiation in thirst presentations; it is not appropriate for damp-heat or for cold-deficiency thirst.

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

Frequently Asked Questions

What are the actions of Yu Quan San?
Yu Quan San has the actions of nourishing Yin, generating fluids, stopping thirst, and mildly supporting Qi. “Jade spring powder” is a classical fluid-generating formula for dry mouth and wasting-thirst (xiao ke) from Heat injuring Qi and Yin.
Which modern conditions is Yu Quan San suited to?
Modern TCM clinical practice commonly applies it to individuals whose pattern differentiation falls within Qi-Yin deficiency with dryness-Heat, including persistent thirst and dry mouth of this pattern, some xiao ke presentations after medical diagnosis, and late-stage febrile illness with remaining dry mouth — never as a replacement for diabetes medication or endocrine care.
Is Yu Quan San suitable for improving thirst that drinking does not fully relieve?
For presentations of dry mouth and throat, thirst, fatigue, possible frequent urination of deficiency-Heat type, a red tongue with scant coating, and a thin rapid pulse — in those whose pattern differentiation confirms Yin injury with residual Heat — TCM commonly applies Yu Quan San as an adjunct. New or worsening thirst with weight loss requires medical evaluation of diabetes and other causes.
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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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