太阳与阳明合病不下利但呕者葛根加半夏汤主之
二阳合病经迫腑郁不能容纳水谷未化之食必当涌吐而上半夏降胃逆而止呕吐也
葛根（四两） 麻黄（三两炮去黄汗焙） 桂枝（二两） 芍药（二两） 甘草（二两） 生姜（三两） 大枣（十
二枚） 半夏（半升洗）
上八味以水一斗先煮葛根麻黄减二升去上沫内诸药煮取二升去滓温服一升覆取微似汗
阳明病自经传腑腑病宜下其经证未罢犹见恶寒则宜先汗而后下经证已解恶寒不作而潮热汗出全是腑证当相其缓急而
用下法也
太阳病三日发汗不解蒸蒸发热者属胃也调胃承气汤主之
太阳病二日阳明三日少阳此但传经络而不入脏腑发汗则解矣乃当三日少阳之期发汗不解而反蒸蒸发热者此不在经而
在胃也宜早以调胃承气调之免后此之用大承气此大承气之初证也
大黄（三两清酒浸去皮） 甘草（二两炙） 芒硝（半斤）
上三味 咀以水三升煮取一升去滓内芒硝更上火微煮令沸少少温服
二阳并病太阳证罢但发潮热手足 汗出大便难而谵语者下之则愈宜大承气汤
二阳并病太阳经证既罢但有阳明腑证潮热汗出大便难而谵语全是胃腑燥热闭塞不通下之泄其胃热则愈宜大承气汤也
潮热即日晡发热按时发作期如潮信也
大黄（四两） 芒硝（三两） 枳实（五枚炙） 浓朴（半斤炙去皮）
上四味以水一斗先煮枳朴取五升去滓内大黄煮取二升去滓内芒硝更上火微一两沸分温再服得下余勿服
Taiyang and Yangming diseases occur simultaneously. In cases without diarrhea but with vomiting, Gegen Jia Banxia Tang (Kudzu and Pinellia Decoction) is the primary treatment.
When Taiyang and Yangming diseases combine, pathogenic factors press upon the fu organs causing stagnation, preventing the retention of undigested food and fluids. This inevitably leads to projectile vomiting; therefore, Banxia (Pinelliae Rhizoma) should be used to descend rebellious stomach qi and stop vomiting.
Gegen (Puerariae Lobatae Radix, 4 liang) Mahuang (Ephedrae Herba, 3 liang, processed to remove yellow sweat and dried) Guizhi (Cinnamomi Ramulus, 2 liang) Shaoyao (Paeoniae Radix Alba, 2 liang) Gancao (Glycyrrhizae Radix et Rhizoma, 2 liang, roasted) Shengjiang (Zingiberis Rhizoma Recens, 3 liang) Dazao (Jujubae Fructus, 12 pieces) Banxia (Pinelliae Rhizoma, half sheng, washed)
Take the above eight ingredients. Add one dou of water, first decoct Gegen and Mahuang until the volume reduces by two sheng. Remove the scum floating on the surface. Then add the remaining herbs and decoct until two sheng of liquid remain. Strain the dregs. Take one sheng warm. After taking the medicine, cover with blankets to induce a slight sweating.
In Yangming disease, if the pathogen transmits from the meridians to the fu organs, fu organ diseases are suitable for purgation. If the meridian syndrome has not yet resolved and chills are still present, sweating should be induced first, followed by purgation. If the meridian syndrome has resolved, chills cease, and tidal fever and sweating appear, indicating a pure fu organ syndrome, purgation should be applied according to the urgency of the condition.
If after three days of Taiyang disease, sweating fails to resolve the condition and steaming-hot fever occurs, the pathogen belongs to the Stomach. Tiaowei Chengqi Tang (Regulating the Stomach and Directing Downward Decoction) is indicated.
Taiyang disease transmits to Yangming on the second day and to Shaoyang on the third day. Usually, transmission is limited to the meridians without entering the zang-fu organs, and sweating resolves it. However, if on the third day (Shaoyang period), sweating fails to resolve the condition and steaming-hot fever appears instead, the pathogen is no longer in the meridians but in the Stomach. Early intervention with Tiaowei Chengqi Tang is appropriate to prevent the later need for Dachengqi Tang. This represents the initial stage of Dachengqi Tang syndrome.
Dahuang (Rhei Radix et Rhizoma, 3 liang, soaked in clear wine and peeled) Gancao (Glycyrrhizae Radix et Rhizoma, 2 liang, roasted) Mangxiao (Natrii Sulfas, half jin)
Take the above three ingredients. Cut into small pieces. Add three sheng of water and decoct to obtain one sheng of liquid. Strain the dregs. Add Mangxiao. Heat slightly until boiling. Administer warm in small amounts frequently.
In combined Taiyang and Yangming diseases, if the Taiyang meridian syndrome has ceased, presenting only with tidal fever, continuous sweating of the hands and feet, difficulty in defecation, and delirious speech, purgation will cure it. Dachengqi Tang (Major Order the Qi Decoction) is indicated.
In combined Taiyang and Yangming diseases, once the Taiyang meridian syndrome has resolved, only Yangming fu organ symptoms remain: tidal fever, sweating, difficulty in defecation, and delirious speech. These indicate complete blockage due to dryness-heat in the Stomach fu. Purgation to drain stomach heat will cure it. Dachengqi Tang is indicated.
Tidal fever refers to fever occurring at dusk (Shen hour, 3-5 PM), appearing on schedule like the tide.
Dahuang (Rhei Radix et Rhizoma, 4 liang) Mangxiao (Natrii Sulfas, 3 liang) Zhishi (Aurantii Fructus Immaturus, 5 pieces, roasted) Houpo (Magnoliae Officinalis Cortex, half jin, roasted and peeled)
Take the above four ingredients. Add one dou of water. First decoct Zhishi and Houpo until five sheng of liquid remain. Strain the dregs. Add Dahuang and decoct until two sheng of liquid remain. Strain the dregs. Add Mangxiao. Heat slightly until boiling (one or two boils). Divide into two warm doses. If defecation occurs, do not take the remainder.