Gan Lu Yin

Classical TCM Formula Profile

Part of the HJMEDICAL TCM Discovery Center

甘露飲 · Gān Lù Yǐn

A classical formula for Yin deficiency with damp-heat in the upper jiao — dry mouth, gum swelling and sticky saliva.

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Quick Facts

Formula Category
Heat-Clearing Formulas
Primary Pattern
Stomach Heat
Primary Function
Enrich Yin, clear heat, resolve damp, generate fluids
Primary Therapeutic Principle
Nourish Yin, clear heat and drain damp from the upper jiao
Classical Source
Tai Ping Hui Min He Ji Ju Fang (Song, 1107)
Available as Granules
Yes

Formula Overview

A classical formula for Yin deficiency with damp-heat in the upper jiao — dry mouth, gum swelling and sticky saliva.

Therapeutic Principle

Traditionally selected for Yin deficiency with damp-heat in the upper jiao affecting mouth and gums, rather than pure Stomach fire, Yin-deficiency Stomach heat, or latent Spleen heat alone.

Composition: Sovereign, Minister, Assistant, Envoy

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

Classical Composition

  • Radix Rehmanniae (Sheng Di Huang) 12g
  • Radix Rehmanniae Praeparata (Shu Di Huang) 12g
  • Herba Dendrobii (Shi Hu) 9g
  • Radix Asparagi (Tian Dong) 9g
  • Radix Ophiopogonis (Mai Dong) 9g
  • Folium Eriobotryae (Pi Pa Ye) 9g
  • Herba Artemisiae Scopariae (Yin Chen) 9g
  • Radix Scutellariae (Huang Qin) 6g
  • Fructus Aurantii (Zhi Ke) 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

  • Enriches yin
  • clears heat
  • and moistens dryness in the upper and middle jiao.

Indications

  • This formula is indicated for yin deficiency with lurking heat in the stomach and lung.
  • Signs and symptoms include dry mouth, swollen gums, bad breath, and scant sticky sputum.

Tongue & pulseThe tongue is red with little coating.

Traditional Pathogenesis

Cause & mechanism

  • This pattern is due to exuberant heat in the yangming stomach that scorches fluids and drives qi upward.
  • Yin deficiency with lurking heat in the stomach and lung produces dry mouth, swollen gums, bad breath and scanty sticky sputum.

Clinical presentation

  • Typical signs include thirst, bad breath, swollen gums or a rapid, flooding pulse.

Treatment strategy

  • The correct method is to clear stomach heat and drain fire while protecting fluids.
  • In this formula the emphasis is to nourish Yin, clear heat and drain damp from the upper jiao.

How does this formula compare?

Compare Gan Lu YinQing Wei SanYu Nv JianXie Huang San
Primary Function Enrich Yin, clear heat, resolve damp, generate fluidsClear Stomach heat, cool blood, relieve fire toxinClear Stomach heat, nourish YinClear and drain Spleen-Stomach latent heat
Formula Category Heat-Clearing FormulasHeat-Clearing FormulasHeat-Clearing FormulasHeat-Clearing Formulas
Typical TCM Pattern Stomach HeatStomach HeatStomach HeatStomach Heat
Main Conditions Dry Mouth & ThroatHeadacheDry Mouth & Throat·Headache·ConstipationStomach Discomfort
Main Herbs Raw Rehmannia Root·Prepared Rehmannia Root·Dendrobium·Asparagus Root·Ophiopogon TuberCoptis Rhizome·Raw Rehmannia Root·Moutan Bark / Tree Peony Bark·Chinese Angelica Root·Cimicifuga RhizomeGypsum·Prepared Rehmannia Root·Ophiopogon Tuber·Anemarrhena Rhizome·Achyranthes RootAgastache / Patchouli·Gardenia Fruit·Gypsum·Saposhnikovia Root·Licorice Root
Classical Source Tai Ping Hui Min He Ji Ju Fang (Song, 1107)Li Dongyuan school / classicalJing Yue Quan Shu (Zhang Jingyue, Ming dynasty)Li Dongyuan school / classical

Clinical Perspective

Gan Lu Yin, Qing Wei San, Yu Nv Jian and Xie Huang San clear heat related to the mouth or middle jiao. Qing Wei San is blazing Stomach fire with toothache; Yu Nv Jian is Stomach heat with Yin deficiency; Xie Huang San is latent Spleen-Stomach heat. Gan Lu Yin enriches Yin, clears heat and drains damp for Yin deficiency with damp-heat in the upper jiao — dry mouth, gum swelling and sticky saliva.

Clinical Differentiation

  • Gan Lu Yin is used for yin deficiency with lurking heat in the stomach and lung: dry mouth, swollen gums and scant sticky sputum.
  • It is distinguished from Qing Wei San and Yu Nu Jian (more yangming fire) and from Sha Shen Mai Dong Tang (dryness without the same lurking heat in the gums).

Safety notes: This formula is moistening and cooling. It is not appropriate for spleen-damp or for yangming excess fire that needs draining.

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

Frequently Asked Questions

What are the actions of Gan Lu Yin?
Gan Lu Yin has the actions of nourishing Yin, clearing Heat, regulating Qi, and transforming turbidity. From Tai Ping Hui Min He Ji Ju Fang, it treats “guest Heat” in the Stomach that rises to the gums, mouth, and throat while Yin has already been injured.
Which modern diseases is Gan Lu Yin suited to?
Modern TCM clinical practice commonly applies it to individuals whose pattern differentiation falls within Stomach Yin deficiency with residual Heat or Damp-Heat, including recurrent mouth ulcers, gingivitis or bleeding gums with bad breath, chronic sore throat of Yin-deficiency Heat type, and some red painful eyes that cannot tolerate purely cold formulas.
Is Gan Lu Yin suitable for improving swollen gums, mouth sores, and dry mouth?
For presentations of swollen or bleeding gums, halitosis, mouth or tongue sores, sore throat, dry mouth with residual Heat, a red tongue with little or yellow coating, and a thin rapid pulse — in those whose pattern differentiation confirms Yin injury with Stomach Heat — TCM commonly applies Gan Lu Yin as an adjunct. It cannot replace dental or ENT evaluation of infection or ulcerating disease.
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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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