甘草（四两，炙） 桂枝（炒） 生姜（各三两） 生地黄（一斤） 人参 阿胶（各
二两） 麦
伤寒脉结代，心动悸者，此方主之。
结与代，皆止脉也，此由气血虚衰，真气不能相续，故有此脉。心动悸者，动而不自安
也，亦由真气内虚所致，补虚可以去弱，故用人参、甘草、大枣；温可以生阳，故用生姜、
桂枝；润可以滋阴，故用阿胶、麻仁；而生地、麦冬者，又所以清心而宁悸也。
茯苓（去皮） 桂枝（炒，各一两） 生姜（三两） 甘草（一两）
伤寒水气乘心，心动悸者，此方主之。
水气乘心而悸者，以水者心火之所畏也，故乘之则为动悸，此饮水过多之所致也。淡可
以渗水，故用茯苓；辛可以散饮，故用姜、桂；益土可以制水，故用甘草。又曰∶饮之为悸，
甚于他邪，虽有余邪，必先治悸。盖以水停心下，不早治之，浸于肺则为喘为咳，传于胃则
为哕为噎，溢于皮肤则为肿，渍于肠间则为利下故也。经曰∶厥而心下悸，宜先治水，后治
其厥。厥为邪之深者，犹先治水，则夫病浅于厥者可知矣。
茯苓（半斤，去皮） 桂枝（四两，炒） 甘草（二两） 大枣（十五枚）
甘澜水煎。
伤寒汗后，脐下悸，欲作奔豚者，此方主之。
汗后则心液虚，肾者水脏，欲乘心火之虚而克之，故脐下悸，俗作奔豚而上凌于心也。
茯苓甘淡，可以益土而伐肾邪；桂枝辛热，可以益火而平肾气；甘草、大枣之甘，可以益脾，
益脾所以制肾也。煎以甘润水者，扬之无力，取其不助肾气尔！
【炙甘草汤】
药材：甘草（四两，蜜炙）、桂枝（炒制）、生姜（各三两）、生地黄（一斤）、人参、阿胶（各二两）、麦冬。
伤寒病出现脉象结代、心中悸动不安的症状，此方主治。
“结”与“代”，都是脉搏有间歇停跳的脉象，这是由于气血虚弱衰败，真气不能连续接续，所以出现这种脉象。“心动悸”，是指心跳跳动而内心不得安宁，这也是由体内真气虚损所致。补益虚损可以去除虚弱，所以用人参、甘草、大枣；温煦可以生发阳气，所以用生姜、桂枝；滋润可以滋养阴液，所以用阿胶、麻子仁；而生地黄、麦冬的作用，则是为了清心火而使心悸安宁。
【茯苓甘草汤】
药材：茯苓（去皮）、桂枝（炒制，各一两）、生姜（三两）、甘草（一两）。
伤寒病中水气侵犯心脏，导致心中悸动的症状，此方主治。
水气侵犯心脏而导致悸动，是因为水是心火所畏惧的，所以水气侵犯就会引起悸动，这是饮水过多所导致的。淡味药物可以渗利水湿，所以用茯苓；辛味药物可以发散水饮，所以用生姜、桂枝；补益脾土可以制约水湿，所以用甘草。又说：因水饮引起的悸动，比其它邪气引起的更为严重，即使还有其他邪气，也必须先治疗悸动。因为水饮停滞在心下，如果不早点治疗，浸渍到肺部就会造成气喘咳嗽，传变到胃部就会导致呃逆噎塞，溢出到皮肤就会造成浮肿，浸渍到肠道间就会导致腹泻。医经说：“四肢厥冷且心下悸动的，应当先治疗水饮，然后再治疗厥冷。”厥冷是邪气深入的表现，尚且要先治水，那么病情比厥冷轻浅的情况就可想而知了。
【茯苓桂枝甘草大枣汤】
药材：茯苓（半斤，去皮）、桂枝（四两，炒制）、甘草（二两）、大枣（十五枚）。
煎服法：用甘澜水煎煮。
伤寒病发汗之后，出现脐下悸动，即将发作奔豚病的症状，此方主治。
发汗之后心液亏虚，肾为水脏，想要趁心火虚弱之时克制心火，所以出现脐下悸动，俗称为奔豚，其气上冲凌犯心脏。茯苓味甘淡，可以补益脾土而祛除肾邪；桂枝味辛性热，可以补益心火而平抑肾气；甘草、大枣味甘，可以补益脾气，补益脾气就可以制约肾水。使用甘澜水煎煮，是将水反复扬洒使其无力，取其不助长肾气之意。
[Guizhi Gancao Dazao Tang (Cinnamon Twig, Licorice, and Jujube Decoction)]
Herbs: Glycyrrhizae Radix et Rhizoma Praeparatum cum Melle (Zhi Gancao, 炙甘草, four liang), Cinnamomi Ramulus (Gui Zhi, 桂枝, stir-fried), Zingiberis Rhizoma Recens (Sheng Jiang, 生姜, three liang each), Rehmanniae Radix (Sheng Di Huang, 生地黄, one jin), Ginseng Radix et Rhizoma (Ren Shen, 人参), Asini Corii Colla (Ejiao, 阿胶, two liang each), Oryzae Fructus Impolitus (Mahu Ren, 麻子仁).
In Shaoyang disease presenting with knotted and intermittent pulse (Jie Dai Mai, 结代脉) and palpitations (Xin Dong Ji, 心动悸), this formula is indicated.
"Knotted" (Jie, 结) and "intermittent" (Dai, 代) both refer to pulses with pauses. These arise from the deficiency and decline of Qi and Blood, where the True Qi cannot continue sequentially, thus producing such a pulse. "Palpitations" refers to the heart beating restlessly without peace, also caused by internal deficiency of True Qi. Tonifying deficiency removes weakness; therefore, Ginseng Radix et Rhizoma (Ren Shen, 人参), Glycyrrhizae Radix et Rhizoma Praeparatum cum Melle (Zhi Gancao, 炙甘草), and Zizyphi Fructus (Da Zao, 大枣) are used. Warming generates Yang; therefore, Zingiberis Rhizoma Recens (Sheng Jiang, 生姜) and Cinnamomi Ramulus (Gui Zhi, 桂枝) are used. Moisturizing nourishes Yin; therefore, Asini Corii Colla (Ejiao, 阿胶) and Oryzae Fructus Impolitus (Mahu Ren, 麻子仁) are used. Sheng Di Huang (Rehmanniae Radix, 生地黄) and Ophiopogonis Tuber (Mai Dong, 麦冬) serve to clear the Heart and calm palpitations.
[Fuling Gancao Tang (Poria, Licorice, and Ginger Decoction)]
Herbs: Poria (Fu Ling, 茯苓, peeled), Cinnamomi Ramulus (Gui Zhi, 桂枝, stir-fried, one liang each), Zingiberis Rhizoma Recens (Sheng Jiang, 生姜, three liang), Glycyrrhizae Radix et Rhizoma (Gan Cao, 甘草, one liang).
In Shaoyang disease where Water Qi invades the Heart causing palpitations (Xin Dong Ji, 心动悸), this formula is indicated.
When Water Qi invades the Heart causing palpitations, it is because Water is feared by Heart Fire; thus, when invaded, it causes agitation and palpitation. This results from excessive drinking of water. Bland flavors can leach out water; therefore, Poria (Fu Ling, 茯苓) is used. Acrid flavors can disperse fluid retention; therefore, Zingiberis Rhizoma Recens (Sheng Jiang, 生姜) and Cinnamomi Ramulus (Gui Zhi, 桂枝) are used. Benefiting Earth controls Water; therefore, Glycyrrhizae Radix et Rhizoma (Gan Cao, 甘草) is used. It is said: Palpitations caused by fluid retention are more severe than those caused by other pathogens. Even if there are other excess pathogens, the palpitations must be treated first. Because water stagnates below the Heart, if not treated early, it will soak into the Lungs causing asthma and cough, transmit to the Stomach causing hiccups and dysphagia, overflow into the skin causing edema, or soak into the intestines causing diarrhea. The Classics state: "When there is cold extremities and palpitations below the Heart, treat the water first, then treat the cold extremities." Cold extremities indicate deep pathogenic invasion; if water is treated first in such cases, it is evident that for shallower diseases, water treatment is even more prioritized.
[Fuling Guizhi Gancao Dazao Tang (Poria, Cinnamon Twig, Licorice, and Jujube Decoction)]
Herbs: Poria (Fu Ling, 茯苓, half jin, peeled), Cinnamomi Ramulus (Gui Zhi, 桂枝, four liang, stir-fried), Glycyrrhizae Radix et Rhizoma (Gan Cao, 甘草, two liang), Zizyphi Fructus (Da Zao, 大枣, fifteen pieces).
Decoction method: Boil with Ganlan Shui (Gentle Wave Water).
After sweating in Shaoyang disease, if palpitations occur below the umbilicus, indicating impending Ben Tun (Running Piglet) disease, this formula is indicated.
After sweating, Heart Fluid becomes deficient. The Kidney is the Water Organ; it desires to exploit the deficiency of Heart Fire to overcome it, hence palpitations below the umbilicus occur. Commonly called Ben Tun (Running Piglet, 奔豚), its Qi rushes upward to overwhelm the Heart. Poria (Fu Ling, 茯苓) is sweet and bland, benefiting Earth and attacking Kidney pathogens; Cinnamomi Ramulus (Gui Zhi, 桂枝) is acrid and hot, benefiting Fire and pacifying Kidney Qi; the sweetness of Glycyrrhizae Radix et Rhizoma (Gan Cao, 甘草) and Zizyphi Fructus (Da Zao, 大枣) benefits the Spleen. Benefiting the Spleen controls the Kidney. Boiling with Ganlan Shui (Gentle Wave Water, 甘澜水), which has been agitated until powerless, is done to avoid assisting Kidney Qi.