Formulas · Clear Heat 淸熱 · Jeoneul (錢乙)

Cicada and Pig's Dewclaw Powder

Seonjeo-san

한글 선저산  ·  Pinyin Chan Zhu San

蟬猪散

The transcription writes 𥂁泥, printed 鹽泥 by the standing correction, and 為, printed 爲. The calcining instruction 入罐內ㆍ鹽泥固濟ㆍ燒存性 is read as applying to the pig's dewclaw horn, the drug it stands immediately after, and is given in parentheses as a preparation gloss. 猪懸蹄甲 resolves to jeohyeonje (猪懸蹄) through the alias 猪蹄甲; it is not 猪蹄 (jeoje). This leaf gives its dose by the child's age — 一歲兒取三分, 三歲兒五分 — and so joins 煮肝丸, 加味六一散, 肉豆蔲丸 and 紫草膏 as a place where this chapter does scale a dose, which is the reason no blanket statement that the chapter never doses by age belongs in any note.

Composition 構成

Total 130 g per packet (첩) · representative dosage — verify against source texts.

Received this formula from your practitioner? Amounts shown here are classical reference values — granule and prepared products differ. Always follow your prescribed dosage and directions.

Actions 效能

Indications 主治

Pattern-based

  • Pox toxin entering the eye and breeding a screen and membrane (痘毒入眼生瞖膜)
  • Within half a year of the illness, effect in a month; at a year, incurable (半年內者一月取效, 一年者不治)

Biomedical correlates

  • Corneal opacity following smallpox
  • Established corneal scar — held to be beyond treatment after a year

Source text 原文

Donguibogam 東醫寶鑑

蟬殼 一兩, 猪懸蹄甲 二兩(入罐內, 鹽泥固濟, 燒存性), 羚羊角屑 二錢半. 右爲細末, 一歲兒取三分, 三歲兒五分, 漿水調服, 日三夜一. 《錢乙》

Translation

Cicada moulting 1 nyang; pig's dewclaw horn 2 nyang, put into a crock, luted fast with salt mud and burnt so that the nature is retained; antelope horn filed to shavings 2 don 5 fun. Grind to a fine powder. For a child of one year take 3 fun, for a child of three years 5 fun, stirred into fermented millet water and given three times by day and once by night. — Jeoneul 錢乙 (Donguibogam · Soa)

Clinical commentary 臨床

Cicada moulting, the horn of a pig's dewclaw burnt in a sealed crock until it is charred through but not reduced to ash, and antelope horn shavings. Two of the three are keratin — the cicada's shed cuticle is chitin, the dewclaw and the antelope horn are horn — and the formula is in that sense a keratin powder given for a disease of the cornea, which is itself keratinised tissue. The correspondence is almost certainly why the drugs were chosen, and it carries no therapeutic consequence: swallowed horn is digested to amino acids like any other protein and reaches the eye as nothing in particular. What this section is treating, and what could and could not be done about it, is set out under Milmonghwa-san. The part of this leaf worth attention is not the powder but the two things around it. First, the prognosis the section attaches to it: within half a year of the illness a month's treatment takes effect, at a year the case cannot be treated. That is a correct observation reported as a rule of thumb — corneal clouding in the weeks after the illness is oedema and inflammation and does clear by itself, while a scar a year old is permanent — and the physician who wrote it had followed children long enough to know which was which. Second, the dose: 3 fun for a one-year-old, 5 fun for a three-year-old. The chapter almost never does this, and here it does. **The patient is an infant, and the antelope horn is from a CITES-listed animal — saiga antelope, pushed to the edge of extinction by exactly this demand, and pharmacologically inert.** Grading the dose by age is better than not grading it, but age is not weight, and three doses by day and one by night of a charred-horn powder in fermented millet water is a feeding regimen for a convalescent child that displaces food and fluid, which in a child recovering from confluent smallpox was the thing that actually mattered. — Eui Young (Justin) Chung, L.Ac., Dipl. O.M.

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