Formula
Clam Shell Powder
文蛤散wen ge san
1 source
1 herbs·from Shanghan Lun (Treatise on Cold Damage)
In the《Shanghan Lun》tradition (recorded at passage 141a), this formula is described for an exterior pattern wrongly doused with cold water, so the heat is trapped and intensifies: vexation, gooseflesh on the skin, and a wish to drink yet without real thirst. The text notes that if it did not resolve, Wuling San was used instead. A historical indication, not a modern diagnostic or treatment recommendation.
Source
传统主治（traditional context, not a modern clinical claim）：病在陽，應以汗解之，反以冷水潠之，若灌之，其熱被劫不得去，彌更益煩，肉上粟起，意欲飲水，反…
Shanghan Lun (Treatise on Cold Damage)《伤寒论》辨太阳病脉证并治·文蛤散（证治条文·宋本141）
References
- Self-authored English rendering of the classical formula name (pinyin + sense translation); not a verbatim excerpt, no modern proprietary source.
Composition
- Clam (Wen ge)五兩
Citations
- Shanghan Lun (Treatise on Cold Damage) · Zhang Zhongjing · 《伤寒论》辨太阳病脉证并治·文蛤散（组成·宋本141）Cited from Shanghan Lun (Treatise on Cold Damage) for its composition.
- Shanghan Lun (Treatise on Cold Damage) · Zhang Zhongjing · 《伤寒论》辨太阳病脉证并治·文蛤散（证治条文·宋本141）；hash 锚含方名/组成唯一上下文片段Cited from Shanghan Lun (Treatise on Cold Damage) for its traditional indications.
- Shanghan Lun (Treatise on Cold Damage) · Zhang Zhongjing · 《伤寒论》辨太阳病脉证并治·文蛤散（煎服法·宋本141）Cited from Shanghan Lun (Treatise on Cold Damage) for its preparation & usage.