柴胡(半斤) 黄芩(半斤洗) 半夏(半斤洗) 人参(三两) 甘草(三两) 生姜(三两) 大枣(十二枚)
上七味以水一斗二升煮取六升去滓再煎取三升温服一升日三服 若胸中烦而不呕去半夏人参加栝蒌实一枚(栝蒌实
涤淤而清烦)若渴者去半夏加人参合前成四两半栝蒌根四两(人参栝蒌根益气而生津清金而止渴)若腹痛者去黄芩加芍
药三两(芍药泄甲木而清相火息风燥而止腹痛)若胁下痞硬去大枣加牡蛎四两(牡蛎软坚而消痞硬)若心下悸小便不利
者去黄芩加茯苓四两(茯苓泄水而去湿湿去则木达风息悸动自安)若不渴外有微热者去人参加桂三两温覆取微似汗愈(桂
枝解太阳之表邪)若咳者去人参大枣生姜加五味子半斤干姜二两(五味子干姜降逆气而止咳)
血弱气尽腠理开邪气因入与正气相搏结于胁下正邪分争往来寒热休作有时默默不欲饮食脏腑相连其痛必下邪高痛下
故使呕也小柴胡汤主之
少阳之病缘太阳阳明之经外感风寒经气郁勃逼侵少阳少阳之经因于二阳之侵血弱气尽腠理开泄二阳经邪因而内入与
本经正气两相搏战经气郁迫结滞胁下少阳之经自头走足脉循胁肋病则经气不降横塞胁肋此胸胁苦满胁下痞硬之故也正气
病则正亦为邪阴郁而为寒是为阴邪阳郁而为热是为阳邪邪正分争休作有时此往来寒热之故也分争之久正气困乏精神衰倦
静默无言饮食不思此默默不欲饮食之故也脾脏胃腑以膜相连一被木邪则胃气上逆脾气下陷脾气既陷则肝气抑遏而克脾土
其痛必在下部此腹中作痛之故也胃土既逆则上脘填塞君火不降浊气涌翻于是心烦而喜呕吐胃土逆则邪高脾下陷则痛下痛
下而邪高此心烦喜呕之故也是皆小柴胡证宜以主之 邪气入内者正气病而成邪是即邪气之内传非必风寒之里入也
Chai Hu (Radix Bupleuri, half jin) Huang Qin (Radix Scutellariae, half jin, washed) Ban Xia (Rhizoma Pinelliae, half jin, washed) Ren Shen (Radix Ginseng, three liang) Gan Cao (Radix Glycyrrhizae, three liang) Sheng Jiang (Rhizoma Zingiberis Recens, three liang) Da Zao (Fructus Jujubae, twelve pieces)
Take the above seven ingredients, boil with one dou and two sheng of water, reduce to six sheng, remove the dregs, and decoct again to obtain three sheng. Take one sheng warm each time, three times a day.
If there is irritability in the chest without vomiting, remove Ban Xia and add one fruit of Gua Lou Shi (Trichosanthis Fructus, which clears turbidity and relieves irritability).
If there is thirst, remove Ban Xia, increase the dosage of Ren Shen to four liang and half, and add Gua Lou Gen (Radix Trichosanthis, four liang; Ren Shen and Gua Lou Gen benefit qi, generate fluids, clear the Metal element, and stop thirst).
If there is abdominal pain, remove Huang Qin and add Shao Yao (Radix Paeoniae Alba, three liang; Shao Yao drains the Wood of Jia, clears ministerial fire, extinguishes wind-dryness, and stops abdominal pain).
If there is fullness and hardness under the hypochondrium, remove Da Zao and add Mu Li (Concha Ostreae, four liang; Mu Li softens hardness and dissipates fullness).
If there is palpitation of the heart and difficulty in urination, remove Huang Qin and add Fu Ling (Poria, four liang; Fu Ling drains water and removes dampness; once dampness is removed, Wood Qi flows freely, wind is extinguished, and palpitations settle naturally).
If there is no thirst but a slight fever on the exterior, remove Ren Shen and add Gui Zhi (Ramulus Cinnamomi, three liang); cover with blankets to induce a slight sweat for recovery (Gui Zhi releases exterior pathogens of the Tai Yang channel).
If there is cough, remove Ren Shen, Da Zao, and Sheng Jiang, and add Wu Wei Zi (Fructus Schisandrae, half jin) and Gan Jiang (Rhizoma Zingiberis Secatus, two liang; Wu Wei Zi and Gan Jiang descend rebellious Qi and stop cough).
When blood is weak and qi is exhausted, the couli (pores and skin texture) open, allowing pathogenic factors to enter. They contend with healthy qi and knot at the hypochondrium. The struggle between healthy qi and pathogenic factors results in alternating chills and fever occurring intermittently, silence, and lack of desire to eat. Since the zang and fu organs are connected, pain must shift downward. Because the pathogen is high and the pain is low, vomiting occurs. Xiao Chai Hu Tang (Minor Bupleurum Decoction) is the primary treatment.
Shaoyang disease arises because external contraction of wind-cold by the Taiyang and Yangming channels causes their qi to become stagnant and oppressive, invading the Shaoyang. Due to this invasion from the two yang channels, blood becomes weak and qi exhausted, causing the couli to open. The pathogens from the Taiyang and Yangming channels then enter internally, contending with the healthy qi of the Shaoyang channel itself. This stagnation and obstruction of channel qi knots at the hypochondrium. The Shaoyang channel runs from head to foot along the hypochondrium; when diseased, its qi fails to descend and blocks horizontally at the hypochondrium, causing bitter fullness in the chest and hypochondrium and hardness under the hypochondrium. When healthy qi is compromised, yang is constrained by pathogenic yin, manifesting as cold (yin pathogen); yang is constrained and manifests as heat (yang pathogen). The intermittent struggle between these forces causes alternating chills and fever. Prolonged struggle exhausts healthy qi, leading to mental fatigue, silence, and anorexia. The spleen and stomach are connected by membranes; invaded by wood-pathogens (liver/gallbladder), stomach qi rebels upward while spleen qi sinks. Sinking spleen qi suppresses liver qi, which attacks spleen earth, causing pain in the lower abdomen. Rebellious stomach qi fills the upper epigastrium, preventing descending junfire and causing turbid qi to surge, resulting in irritability and vomiting. Stomach rebellion places the pathogen high; spleen sinking places pain low; thus irritability and vomiting occur. These are indications of Xiao Chai Hu syndrome, treated primarily with Xiao Chai Hu Tang. Internal transmission of pathogens signifies that healthy qi has become pathological; this is internal transmission, not necessarily direct interior contraction of wind-cold.