The Five Classical Di Huang Wan Formulas, and their Applications in TCM

In Traditional Chinese Medicine (TCM), Liu Wei Di Huang Wan (Six-Ingredient Rehmannia Pill) and its modified formulas are highly regarded for nourishing the Liver and Kidney and harmonizing Yin and Yang.

As the cornerstone of the group, Liu Wei Di Huang Wan has led to the development of several variations, including Zhi Bai Di Huang Wan, Gui Shao Di Huang Wan, Qi Ju Di Huang Wan, and Ming Mu Di Huang Wan. These formulas enhance the original Kidney-Yin nourishing effects, each designed to address specific syndromes, making them suitable for different constitutions and pathologies. This article delves into the composition, efficacy, and clinical applications of these variations.

1. Liu Wei Di Huang Wan: A Fundamental Formula for Nourishing Yin and Strengthening the Kidneys

Originating from the Xiao Er Yao Zheng Zhi Jue (Key to Therapeutics of Children’s Diseases), Liu Wei Di Huang Wan contains six primary herbs:

• Shu Di Huang (Prepared Rehmannia) – The chief herb, tonifies Kidney-Yin, replenishes Essence and Marrow.

• Shan Zhu Yu (Cornus Fruit) – Stabilizes Essence, nourishes the Liver.

• Shan Yao (Chinese Yam) – Strengthens the Spleen, benefits the Kidney.

• Ze Xie (Alisma) – Drains dampness, regulates water metabolism.

• Mu Dan Pi (Moutan Bark) – Clears Liver heat.

• Fu Ling (Poria) – Strengthens the Spleen, eliminates dampness.

This formula maintains a balance of tonification and purging, ensuring effective supplementation without stagnation.

Indications: Kidney-Yin Deficiency, presenting as lower back and knee weakness, dizziness, night sweats, dry mouth and throat, red tongue with little coating, and thin rapid pulse.

2. Zhi Bai Di Huang Wan: Clearing Deficiency Heat and Reducing Internal Fire

This modified formula adds Zhi Mu (Anemarrhena) and Huang Bai (Phellodendron) to Liu Wei Di Huang Wan, enhancing its ability to clear deficiency heat:

• Zhi Mu – Nourishes Yin, clears heat.

• Huang Bai – Bitter and cold, reduces fire, clears damp-heat.

These herbs work together to cool excessive internal heat while still supporting Yin, helping restore the Yin-Yang balance.

Indications: Kidney-Yin Deficiency with excess heat, causing tidal fever, night sweats, dry mouth, throat pain, vexation, restlessness, and nocturnal emissions. Especially effective when Yin Deficiency leads to internal heat symptoms.

3. Gui Shao Di Huang Wan: Nourishing Blood, Softening the Liver, and Relaxing the Tendons

This formula introduces Dang Gui (Angelica Sinensis) and Bai Shao (White Peony) to Liu Wei Di Huang Wan, with a focus on nourishing the Blood and relaxing the Liver:

• Bai Shao – Softens the Liver, nourishes Blood, alleviates spasms and pain.

• Dang Gui – Tonifies and invigorates Blood, promotes new blood production.

By reinforcing both Blood and Yin, this formula helps relax tendons and alleviate muscle tension.

Indications: Liver and Kidney Deficiency with Blood Deficiency symptoms, such as limb numbness, muscle spasms, cold hands and feet, irregular menstruation, cramps, and fertility support. Particularly effective for individuals with tight tendons and deficient Blood.

4. Qi Ju Di Huang Wan: Nourishing the Liver and Kidneys, Brightening the Eyes

This formula incorporates Gou Qi Zi (Goji Berry) and Ju Hua (Chrysanthemum) to Liu Wei Di Huang Wan, enhancing Liver nourishment and supporting vision health:

• Gou Qi Zi – Tonifies the Liver and Kidneys, benefits vision.

• Ju Hua – Disperses wind, clears heat, improves eyesight.

This combination provides essential nourishment to the eyes while clearing excess heat, making it ideal for vision-related disorders.

Indications: Liver and Kidney Yin Deficiency causing blurred vision, dry eyes, tearing in the wind, dizziness, and eye fatigue. Particularly useful for and Yin Deficiency-related eye problems.

5. Ming Mu Di Huang Wan: Enhancing Essence, Nourishing Blood, and Clearing the Eyes

This formula combines Ji Li (Tribulus), Che Qian Zi (Plantain Seed), Gou Qi Zi, and Ju Hua with Liu Wei Di Huang Wan, strengthening the eye-nourishing and wind-dispelling effects:

• Ji Li – Soothes the Liver, dispels wind, benefits vision.

• Che Qian Zi – Clears Liver heat, improves eyesight, drains dampness.

These herbs further support eye health, alleviating discomfort caused by Liver and Kidney Deficiency or wind disturbance.

Indications: Liver and Kidney Deficiency with Wind Disturbance, leading to blurred vision, excessive tearing, eye dryness, and visual discomfort. Particularly effective for long-term vision problems with both deficiency and excess manifestations.

Conclusion: Syndrome Differentiation and Formula Selection

Liu Wei Di Huang Wan serves as the core Kidney-Yin tonic, with tailored modifications for different syndromes:

• Zhi Bai Di Huang Wan: Clears heat for Kidney-Yin Deficiency with excess heat.

• Gui Shao Di Huang Wan: Nourishes Blood and softens the Liver for Liver and Kidney Deficiency with Blood Deficiency.

• Qi Ju Di Huang Wan: Enhances vision for Kidney and Liver Deficiency with eye disorders.

• Ming Mu Di Huang Wan: Clears wind and improves eyesight for Kidney Deficiency with wind disturbing the eyes.

In clinical practice, selecting the appropriate formula based on syndrome differentiation ensures optimal therapeutic effects for Kidney-Yin deficiency and other related conditions.

地黄丸家族的异同与临床应用

在中医经典方剂中，“六味地黄丸”及其加减化裁方以滋补肝肾、调和阴阳著称。六味地黄丸为基础方，派生出知柏地黄丸、归芍地黄丸、杞菊地黄丸和明目地黄丸等，这些方剂在补肾养阴的基础上，针对不同证候进行了加减变化，以适应不同体质和病机。本文将从方义、功效及临床应用方面对其进行探讨。

一、六味地黄丸：滋阴补肾的基础方

六味地黄丸源于《小儿药证直诀》，由熟地黄、山茱萸、山药、泽泻、丹皮、茯苓六味药组成。熟地黄为君，滋补肾阴，填精益髓；山茱萸固精养肝，山药健脾益肾，共为臣药；泽泻利水渗湿，丹皮清泄肝火，茯苓健脾化湿，三者为佐使，合而成方，补中寓泻，使补而不滞。

主治：肾阴亏虚，表现为腰膝酸软、头晕耳鸣、潮热盗汗、口燥咽干、舌红少苔、脉细数等症。

二、知柏地黄丸：滋阴泻火，清热除蒸

在六味地黄丸的基础上，加知母、黄柏二药，增强清热泻火之功，适用于阴虚火旺之证。知母滋阴清热，黄柏苦寒降火，二者合用，既助滋阴，又能清虚热，使阴阳平衡。

主治：肾阴亏虚，虚火上炎所致的骨蒸潮热、盗汗口燥、咽喉干痛、五心烦热、遗精滑泄等症，常用于肾阴不足而虚火较盛者。

三、归芍地黄丸：养血柔肝，舒筋活络

六味地黄丸加当归、白芍，重在养血调肝，适用于肝肾不足，血虚筋挛之证。白芍柔肝养血，缓急止痛；当归补血活血，助生新血，二者同用，使肝肾之阴得养，筋脉柔润。

主治：肝肾不足，血虚筋挛所致的肢体麻木、筋脉拘挛、手足不温、月经不调等症，尤适用于筋脉不舒、手足痉挛者。

四、杞菊地黄丸：滋肾养肝，清目明神

六味地黄丸加枸杞子、菊花，增强养肝明目的作用。枸杞子滋补肝肾，益精明目；菊花疏风清热，平肝明目，二者配合，使肝肾得养，目得所需。

主治：肝肾阴虚，目暗不明，视物昏花、眼干涩、迎风流泪、头晕目眩等症，尤适用于目力渐衰、肝肾阴虚者。

五、明目地黄丸：益精养血，补肾清目

六味地黄丸加蒺藜、车前子、枸杞子、菊花，增强养肝明目、清热散风之效。蒺藜平肝散风，车前子清肝明目利水，与枸杞子、菊花相合，使肝肾得养，目得濡润。

主治：肝肾不足，风邪上扰，导致目昏视弱、迎风流泪、眼干涩不适、视物模糊等症，尤适用于目疾日久，虚实夹杂者。

总结：辨证施治，合理选方

六味地黄丸为补肾阴的基础方，随证加减以适应不同病机：

• 肾阴亏虚、虚火旺盛者：知柏地黄丸清热泻火；

• 肝肾不足、血虚筋挛者：归芍地黄丸养血柔肝；

• 肝肾亏损、目昏视弱者：杞菊地黄丸滋养肝肾、明目；

• 肝肾不足、风邪上扰者：明目地黄丸补肾清目。

在临床应用时，需依据患者具体证候，审因论治，方能取得良效。

下面是六味地黄丸及其衍生方的组方与功效对比，方便直观理解其异同。