Formula
Two-Parts Cinnamon Twig One-Part Ephedra Decoction
桂枝二麻黄一湯gui zhi er ma huang yi tang
1 source
7 herbs·from Shanghan Lun (Treatise on Cold Damage)
In the《Shanghan Lun》tradition, this formula is described for a state after sweating in which chills and fever recur twice a day in an intermittent-fever-like rhythm, expected to resolve with a light sweat. A historical indication, not a modern diagnostic or treatment recommendation.
Source
传统主治（traditional context, not a modern clinical claim）：服桂枝湯，大汗出，脉洪大者，與桂枝湯如前法。…
Shanghan Lun (Treatise on Cold Damage)《伤寒论》辨太阳病脉证并治·桂枝二麻黄一湯（证治条文·宋本25）
References
- Self-authored English rendering of the classical formula name (pinyin + sense translation); not a verbatim excerpt, no modern proprietary source.
Composition
- Cassia Twig (Gui zhi)一兩十七銖
- Peony Root (Shao yao)一兩六銖
- Ephedra十六銖
- Fresh Ginger (Sheng jiang)一兩六銖
- Apricot Kernel (Xing ren)十六箇
- Licorice一兩二銖
- Jujube (Da zao)五枚
Citations
- Shanghan Lun (Treatise on Cold Damage) · Zhang Zhongjing · 《伤寒论》辨太阳病脉证并治·桂枝二麻黄一湯（组成·宋本25）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·桂枝二麻黄一湯（证治条文·宋本25）；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·桂枝二麻黄一湯（煎服法·宋本25）Cited from Shanghan Lun (Treatise on Cold Damage) for its preparation & usage.