甘遂末（一钱匕） 大黄（切，六两）芒硝（一升）
上三味，以水六升先煮大黄取二升，去滓，纳芒硝一沸，次纳甘遂，分再服，一服得快
利止后服。
治伤寒发汗后，胃中不和，心下痞坚，干噫食臭，胁下有水气，腹中雷
生姜（四两） 甘草 人参 黄芩（各三两） 干姜 黄连（各一两） 半夏（半升） 大
枣
（十二枚）
上八味 咀，以水一斗煮取六升，去滓，分服一升，日三。
治伤寒中风，医反下之，其人下痢，日数十行，谷不化，腹中雷鸣，心下痞坚结满，干
呕，心烦不能得安，师见心下痞谓病不尽，复下之，其痞益甚，此非结热，但以胃中虚客气
上逆使之然也，宜治之方。
甘草（四两） 黄芩 干姜（各二两） 黄连（一两） 半夏（半升） 大枣（十二枚）
上六味 咀，以水一斗煮取六升，去滓。分服一升，日三。
治伤寒吐下后七八日不解，结热在里，表里俱热，时时恶风大渴，舌上干燥而烦，欲
饮水数升者方。
石膏（一升） 知母（六两） 甘草（二两） 粳米（六合）
上四味 咀，以水一斗煮米熟，去滓，分服一升，日三。诸亡血及虚家不可与白虎汤。
若立夏后至立秋前得用之，立秋后不可服，春三月尚凛冷亦不可与之，与之则呕利腹痛。
伤寒无大热而口干渴，心烦，背微恶寒，宜服白虎汤。
伤寒脉浮，发热无汗，其表不解，不可与白虎汤。
渴欲饮水无表证，宜白虎汤。
若渴欲饮水，口燥舌干者，宜白虎汤。
Gansui Powder (1 Qianbi) [Gansui Radix]
Dahuang (sliced, 6 Liang) [Rhei Rhizoma]
Mangxiao (1 Sheng) [Natrii Sulfas]
Take the above three ingredients. Boil Dahuang in 6 Sheng of water first until reduced to 2 Sheng. Remove the dregs. Add Mangxiao and boil once. Then add Gansui. Divide into two doses. If rapid purgation occurs after one dose, stop taking the remaining dose.
Formula for treating Taiyang disease where sweating was induced, leading to disharmony in the Stomach, fullness and hardness below the heart, dry belching with a smell of food, fluid retention under the flanks, and borborygmus in the abdomen:
Shengjiang (4 Liang) [Zingiberis Rhizoma Recens]
Gancao [Glycyrrhizae Radix et Rhizoma]
Renshen [Ginseng Radix]
Huangqin (3 Liang each) [Scutellariae Radix]
Ganjiang [Zingiberis Rhizoma]
Huanglian (1 Liang each) [Coptidis Rhizoma]
Banxia (0.5 Sheng) [Pinelliae Rhizoma Preparatum]
Dazao (12 pieces) [Jujubae Fructus]
Chop the above eight ingredients. Boil in 1 Dou of water until reduced to 6 Sheng. Remove the dregs. Take 1 Sheng per dose, three times daily.
Formula for treating Taiyang disease or wind-stroke where the physician erroneously used purgation, resulting in diarrhea dozens of times a day, undigested food, borborygmus, fullness and hardness below the heart, dry vomiting, and irritability preventing rest. When the physician saw the fullness below the heart and assumed the pathogen remained, they purged again, worsening the fullness. This is not heat accumulation but rather deficiency in the Stomach causing rebellious Qi to ascend. The appropriate formula is:
Gancao (4 Liang) [Glycyrrhizae Radix et Rhizoma]
Huangqin (2 Liang each) [Scutellariae Radix]
Ganjiang (2 Liang each) [Zingiberis Rhizoma]
Huanglian (1 Liang) [Coptidis Rhizoma]
Banxia (0.5 Sheng) [Pinelliae Rhizoma Preparatum]
Dazao (12 pieces) [Jujubae Fructus]
Chop the above six ingredients. Boil in 1 Dou of water until reduced to 6 Sheng. Remove the dregs. Take 1 Sheng per dose, three times daily.
Formula for treating Taiyang disease that has not resolved after 7-8 days following emesis and purgation, with heat accumulating internally, heat in both exterior and interior, occasional aversion to wind, extreme thirst, dry tongue with irritability, and desire to drink several Sheng of water:
Shigao (1 Sheng) [Gypsum Fibrosum]
Zhimu (6 Liang) [Anemarrhenae Rhizoma]
Gancao (2 Liang) [Glycyrrhizae Radix et Rhizoma]
Jingsmi (6 He) [Oryza Sativa Germen]
Chop the above four ingredients. Boil in 1 Dou of water until the rice is cooked. Remove the dregs. Take 1 Sheng per dose, three times daily. Baihu Tang (White Tiger Decoction) is contraindicated for patients with blood loss or those who are constitutionally deficient. It may be used from Lixia (Start of Summer) to Liqiu (Start of Autumn). It should not be taken after Liqiu, nor during the spring months when the weather is still cold; administering it then may cause vomiting, diarrhea, and abdominal pain.
For Taiyang disease presenting with no significant fever but dry mouth and thirst, irritability, and slight aversion to cold on the back, Baihu Tang (White Tiger Decoction) is suitable.
For Taiyang disease with a floating pulse, fever, and absence of sweating, indicating unresolved exterior syndrome, Baihu Tang (White Tiger Decoction) is contraindicated.
For thirst with desire to drink water without exterior syndrome, Baihu Tang (White Tiger Decoction) is suitable.
For thirst with desire to drink water accompanied by dry mouth and tongue, Baihu Tang (White Tiger Decoction) is suitable.