Formula
Resistance Decoction
抵當湯di dang tang
1 source
4 herbs·from Shanghan Lun (Treatise on Cold Damage)
In the Shanghan Lun (《傷寒論》) tradition, this formula is described for a Taiyang illness where the exterior signs persist yet the pulse is faint and sunken: the person becomes manic, with a hard, full lower abdomen and uninhibited urination — understood as static heat (blood stasis) lodged in the interior. A historical indication, not a modern diagnostic or treatment recommendation.
Source
传统主治（traditional context, not a modern clinical claim）：太陽病六七日，表證仍在，脉微而沉，反不結胸，其人發狂者，以熱在下焦，少腹當鞕滿，小便自利者…
Shanghan Lun (Treatise on Cold Damage)《伤寒论》辨太阳病脉证并治·抵當湯（证治条文·宋本124）
References
- Self-authored English rendering of the classical formula name (pinyin + sense translation); not a verbatim excerpt, no modern proprietary source.
Composition
- Leech (Shui zhi)三十箇
- Gadfly (Fei meng)三十箇
- Peach Kernel (Tao ren)二十箇
- Rhubarb Root三兩
Citations
- Shanghan Lun (Treatise on Cold Damage) · Zhang Zhongjing · 《伤寒论》辨太阳病脉证并治·抵當湯（组成·宋本124）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·抵當湯（证治条文·宋本124）；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·抵當湯（煎服法·宋本124）Cited from Shanghan Lun (Treatise on Cold Damage) for its preparation & usage.