Er Zhi Wan
Classical TCM Formula Profile
Part of the HJMEDICAL TCM Discovery Center
二至丸 · Èr Zhì Wán
A classical simple Yin tonic for Liver-Kidney Yin deficiency with premature graying and lumbar weakness.
Quick Facts
- Formula Category
- Yin-Tonifying Formulas
- Primary Pattern
- Kidney Yin Deficiency
- Primary Function
- Enrich Liver and Kidney Yin, darken hair, cool blood
- Primary Therapeutic Principle
- Nourish Liver-Kidney Yin with two seasonal herbs
- Classical Source
- Classical TCM formulary
- Available as Granules
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Formula Overview
A classical simple Yin tonic for Liver-Kidney Yin deficiency with premature graying and lumbar weakness.
Therapeutic Principle
Traditionally selected when the presentation matches the core pattern of this formula.
Composition
(Sovereign / Minister / Assistant / Envoy)
Related Conditions
Related Health Topics
How does this formula compare?
| Compare | Er Zhi Wan | Liu Wei Di Huang Wan | Qi Bao Mei Ran Dan | Da Bu Yin Wan |
|---|---|---|---|---|
| Primary Function | Enrich Liver and Kidney Yin, darken hair, cool blood | Nourish Kidney Yin | Tonify Kidney, nourish essence and blood, darken hair | Enrich Yin, direct fire downward |
| Formula Category | Yin-Tonifying Formulas | Yin-Tonifying Formulas | Yin-Tonifying Formulas | Yin-Tonifying Formulas |
| Typical TCM Pattern | Kidney Yin Deficiency | Kidney Yin Deficiency | Kidney Yin Deficiency | Kidney Yin Deficiency |
| Main Conditions | Dizziness & Vertigo | Dizziness & Vertigo ·Tinnitus ·Night Sweats ·Fatigue & Low Energy | Night Sweats | |
| Main Herbs | Privet Fruit ·Eclipta | Prepared Rehmannia Root ·Cornus Fruit ·Chinese Yam ·Alisma Rhizome ·Moutan Bark / Tree Peony Bark | Fleeceflower Root ·Poria / Hoelen ·Achyranthes Root ·Chinese Angelica Root ·Goji Berry / Lycium Fruit | Prepared Rehmannia Root ·Tortoise Plastron ·Phellodendron Bark ·Anemarrhena Rhizome |
| Classical Source | Classical TCM formulary | Xiao Er Yao Zheng Zhi Jue (Qian Yi, Song dynasty) / later popularised | Ming-Qing classical formulary | Ming-Qing classical formulary |
Clinical Perspective
Er Zhi Wan is distinguished from Liu Wei Di Huang Wan, Qi Bao Mei Ran Dan, Da Bu Yin Wan by its specific pattern focus and herb strategy.
For educational reference only, based on traditional pattern differentiation — not a substitute for professional advice.
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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.