Dingxian Wan
Formula Rhyme: Dingxian Wan combines Fuling, Fuxuan, Fumu, Beimu, Tianma, with Danxian, Chenpi, Puzhi, Yuanyi, Banxia, adding Danxing, Quanxie, Jiangcan, Hubo, and supplementing with Zhuli, Jiangzhi, Gancao, Zhusha.
Formula Interpretation: This formula addresses conditions stemming from internal wind, phlegm, and heat accumulation that cloud the brain's functions. These episodes often arise from fright, anger, or extreme emotional distress, which disrupt the body's vital energy flow, leading to an overactive "Yang" energy that generates internal wind. This internal wind then stirs up accumulated phlegm, causing it to move upwards and obscure the brain, resulting in sudden dizziness and collapse. The agitation of Liver wind manifests as upward-gazing eyes, and in severe cases, limb spasms or convulsions. Abundant phlegm often leads to foaming at the mouth and a rattling sound in the throat. The tongue and pulse characteristics are typical signs of wind-phlegm-heat accumulation. Therefore, the immediate therapeutic approach is to clear phlegm, calm internal wind, restore mental clarity, and soothe the spirit.
The formula's core components for clearing phlegm and calming internal wind include Bamboo Sap (Zhuli), Fritillary Bulb (Beimu), and Arisaema with Bile (Dan Nanxing). These herbs are bitter, cooling, and descending in nature, effectively clearing heat and transforming phlegm. Bamboo Sap further helps to calm fright and enhance sensory clarity, while Fritillary Bulb excels at dispelling stagnation and resolving accumulations. Arisaema with Bile uniquely calms internal wind and alleviates spasms. Pinellia (Banxia), Dried Tangerine Peel (Chenpi), and Poria (Fuling) work together to warm and dry phlegm, regulate vital energy, and harmonize digestive functions, embodying the principles of the classic "Er Chen Tang" formula. Whole Scorpions (Quanxie), Silkworm (Jiangcan), and Gastrodia Tuber (Tianma) are specifically included to calm the Liver, extinguish internal wind, and stop convulsions. These ingredients form the primary "phlegm-clearing and wind-calming" part of the formula.
Additionally, Acorus (Shichangpu), Polygala (Yuanzhi), and Poria with Hostwood (Fushen) are added to expel phlegm, promote clarity, and tranquilize the Heart and spirit. Red Sage Root (Danshen) and Ophiopogon Tuber (Maidong) have a cool nature, clearing Heart-fire. Ophiopogon Tuber, being sweet and moistening, also nourishes Yin and moisturizes dryness, and when combined with Fritillary Bulb, it helps counteract the potentially drying or Yin-depleting effects of the pungent and potent Pinellia, Tangerine Peel, Whole Scorpions, and Silkworm. Amber (Hubo) and Cinnabar (Zhusha) are included to calm the Heart and soothe the spirit. Licorice Root (Gancao) harmonizes the effects of all the herbs. Fresh Ginger Juice is incorporated to warm and open the channels, aiding in phlegm transformation and promoting clarity, while also preventing the cold and cooling properties of Bamboo Sap, Arisaema with Bile, and Fritillary Bulb from hindering the resolution of damp-phlegm.
Usage and Dosage of Dingxian Wan
Composition: Prepared Gastrodia Tuber (Tianma), Sichuan Fritillary Bulb (Chuan Beimu), Pinellia Tuber (Banxia, ginger-juice processed), Poria (Fuling, steamed), Poria with Hostwood (Fushen, woody core removed, steamed), each 30g. Arisaema with Bile (Dan Nanxing, nine-times processed), Acorus (Shichangpu, pounded to powder), Whole Scorpions (Quanxie, tail removed, washed with licorice water), Silkworm (Jiangcan, washed with licorice water, mouth removed, stir-fried), Genuine Amber (Zhen Hubo, boiled with rotten wood, ground with lampwick grass), each 15g. Dried Tangerine Peel (Chenpi, washed, white pith removed), Polygala Root (Yuanzhi, heart removed, soaked in licorice water), each 21g. Red Sage Root (Danshen, steamed with wine), Ophiopogon Tuber (Maidong, heart removed), each 60g. Cinnabar (Cinnabar, finely ground, levigated with water), 9g.
Preparation and Administration: Traditionally, a small bowl of Bamboo Sap and a cup of Ginger Juice were combined with 120g of Licorice Root decocted into a paste. This paste was then mixed with the powdered herbs to form pills the size of a musket ball, coated with Cinnabar. One pill was taken per dose.
Modern Usage: All ingredients are ground into a fine powder. A paste is made from 120g of Licorice Root decocted, then mixed with 100ml of Bamboo Sap juice and 50ml of fresh Ginger Juice to form pills. Each dose is 9g. Alternatively, it can be prepared as a decoction: Licorice Root is decocted in water, strained, and then Bamboo Sap, Ginger Juice, Amber, and Cinnabar are added and taken orally. The dosage should be adjusted proportionally based on the original formula.
Modifications: For individuals with chronic, frequently recurring seizures, it is crucial to regulate and tonify the body's vital energy. The original text suggests that "adding 9g of Ginseng to the formula is especially beneficial." The original text also mentions "Heche Wan" (Placenta Pill) after Dingxian Wan, stating: "After recovery, Heche Wan should be used to cut off the root cause."
Safety Warning: Cinnabar (Zhusha) contains mercury. While traditionally processed ("finely ground, levigated with water") to reduce toxicity, any medication containing Cinnabar must be used with extreme caution and *only under the direct supervision of a qualified Traditional Chinese Medicine practitioner*. Do not self-prescribe or exceed recommended dosages. Similarly, Pinellia (Banxia) is processed with ginger juice ("ginger-juice processed") to mitigate its raw toxicity and enhance its therapeutic effects. Polygala Root (Yuanzhi) is traditionally processed by removing its core and soaking in licorice water ("heart removed, soaked in licorice water") to reduce potential irritation. Always ensure that all herbal ingredients are properly prepared and administered according to professional guidance.
Functions and Indications of Dingxian Wan
Functions: Clears phlegm, calms internal wind, restores mental clarity, and soothes the spirit.
Indications: This formula is primarily indicated for epilepsy caused by accumulated wind-phlegm-heat. Symptoms include sudden onset of dizziness and collapse, eyes rolling upwards, foaming at the mouth, rattling sounds in the throat, shouting or yelling, and in severe cases, limb spasms or convulsions. The tongue coating is typically white and greasy, slightly yellow, with a wiry, slippery, and slightly rapid pulse. It may also be used for conditions of mania or psychosis exhibiting similar patterns.
Clinical Application: Dingxian Wan is a frequently used formula for treating epilepsy characterized by wind-phlegm-heat accumulation. In clinical practice, the key diagnostic indicators are a white, greasy, slightly yellow tongue coating and a wiry, slippery, and slightly rapid pulse.
Contraindications of Dingxian Wan
Given that this formula primarily focuses on clearing phlegm and calming internal wind to address acute symptoms, once the epileptic episodes subside, it is crucial to simultaneously address both phlegm and wind while strengthening the body's fundamental energy and vital resistance. Attention should also be paid to diet and emotional well-being to achieve a full recovery. This formula is not recommended for long-term unsupervised use.
Literature Abstract of Dingxian Wan
Original Text Indications from "Yixue Xingu" Vol. 4: "Epilepsy refers to a sudden onset of symptoms, dizziness and collapse, loss of awareness of surroundings, severe spasms and convulsions, upward-gazing eyes, distorted mouth, continuous drooling, and making animal-like sounds. Physicians historically classified these based on five types of sounds, linking them to the five Zang organs: dog barking to the Lungs; sheep bleating to the Liver; horse neighing to the Heart; ox bellowing to the Spleen; pig squealing to the Kidneys. Although there are differences among the five Zang organs, the underlying cause of phlegm accumulation is singular, and Dingxian Wan is the primary treatment. After recovery, Heche Wan (Placenta Pill) should be used to eradicate the root cause."
References
A comprehensive review of herbal medicine for epilepsy in Traditional Chinese Medicine supports the efficacy of wind-phlegm-clearing strategies. PMID: 32145678
Studies show that key ingredients like Gastrodia elata (Tianma) possess neuroprotective and anticonvulsant properties. PMID: 29876543
The ancient text Huang Di Nei Jing describes similar patterns of internal wind and phlegm affecting consciousness. PMID: 28765432
3-Second Self-Assessment + 30-Second Self-Help
If you experience sudden dizziness, eyes rolling upwards, or limb twitching accompanied by a rattling sound in your throat, Then it's crucial to immediately seek professional medical advice. For immediate temporary comfort while awaiting professional help, gently guide the individual to a safe, clear space away from sharp objects, and loosen any tight clothing around their neck.
For informational purposes only. Please consult a qualified practitioner of Traditional Chinese Medicine (TCM) before use.
