葶苈（熬令黄色，捣，丸如弹子大） 大枣十二枚
上先以水三升，煮枣取二升，去枣，纳葶苈，煮取一升，顿服。
葶苈泄水下行，与甘相反，妙在大枣甘而泄中气，故用其甘以载引葶苈上行，泻肺用其
泄，
舟楫
苇茎二斤 薏苡仁半斤 桃仁五十枚 瓜瓣半斤
上四味，以水一斗，先煮苇茎得五升，去滓纳诸药，煮取二升，服一升。再服当吐如脓。
苇，芦之大者；茎，干也。是方也，推作者之意，病在膈上，越之使吐也。盖肺痈由于
气血混一，营卫不分，以二味凉其气，二味行其血，厘清营卫之气，因势涌越，诚为先着。
其瓜瓣当用丝瓜者良。时珍曰∶丝瓜经络贯串，房隔联属，能通人脉络脏腑，消肿化痰，治
诸血病，与桃仁有相须之理。薏仁下气，苇茎上升，一升一降，激而行其气血，则肉之未败
者，不致成脓，痈之已溃者，能令吐出矣。今时用嫩苇根，性寒涤热，冬瓜瓣性急趋下，合
之二仁，变成润下之方，借以治肺痈，其义颇善。
甘草二两 芎 二两 当归二两 半夏四两 黄芩二两 生葛五两 芍药二两 生姜四
两
上九味，以水二斗，煮取五升，温服一升，日三夜一服。
贲，与“愤”同，俗读奔；豚，尾后窍；又，小豕也。病从腹中气攻于上，一如江豕以
臀愤
退
芎
欲
欲
【葶苈大枣泻肺汤】
葶苈子（炒至黄色，捣碎，制成如弹丸大小的药丸） 大枣十二枚
以上两味药，先用水三升，煮大枣取二升汁液，去掉枣渣，加入葶苈子，再煮取一升药液，一次性服用。
葶苈子具有泄水下行的功效，与大枣的甘缓之性相反。其妙处在于大枣味甘，能在泄降之中顾护中气，因此利用大枣的甘缓之性作为载体，引导葶苈子上行；利用葶苈子的泄降之性来泻除肺中邪气，犹如舟楫载药上行。
【《千金》苇茎汤】
苇茎二斤 薏苡仁半斤 桃仁五十枚 瓜瓣（冬瓜子）半斤
以上四味药，用水一斗，先煮苇茎取五升汁液，去掉药渣，加入其余药物，再煮取二升药液，每次服用一升。再次服用后，应当吐出如脓样的物质。
苇，是芦苇中粗大的部分；茎，指主干。此方推测作者的意图，是针对膈上部的病证，通过涌吐的方法使邪气排出。大概肺痈是由于气血混杂、营卫不分所致，用两味药凉解气分热邪，用两味药活血行瘀，厘清营卫之气，顺应病势向上涌越，这确实是首要的治疗策略。其中的瓜瓣应当选用丝瓜籽效果较好。李时珍说：丝瓜的经络贯穿相连，房隔结构联属，能够疏通人体脉络脏腑，消肿化痰，治疗各种血证，与桃仁有相互辅助的道理。薏苡仁能下气，苇茎能上升，一升一降，激荡并运行气血，那么尚未腐败的肉组织，就不会形成脓液；已经溃破的痈肿，能够促使脓液吐出。如今临床多用嫩苇根，其性寒凉可涤除热邪；冬瓜子性急趋下，与这两味仁药合用，变成了润下的方剂，借以治疗肺痈，其义理颇为精善。
【贲豚汤】
甘草二两 川芎二两 当归二两 半夏四两 黄芩二两 生葛五两 芍药二两 生姜四两
以上九味药，用水二斗，煮取五升药液，温服一升，每日三次，夜间一次。
“贲”，通“愤”，俗读作“奔”；“豚”，指猪的后窍；又指小猪。此病是腹中的气攻冲于上，就像江豚用臀部愤激地想要退却一样。
[Tingli Dazao Xiefei Decoction]
Semen Lepidii Descurainiae (Tinglizi) [fried until yellow, pounded into pills the size of a bullet], Jujubae Fructus (Dazao) [12 pieces].
Take the above two ingredients. First, decoct the Jujubae Fructus in three sheng of water to obtain two sheng of liquid. Remove the dregs, add the Semen Lepidii Descurainiae, and decoct again to obtain one sheng of liquid. Take all at once.
Semen Lepidii Descurainiae drains water downward, which is contrary to the sweet nature of Jujubae Fructus. The subtlety lies in the fact that Jujubae Fructus is sweet and protects the middle qi during the draining process. Therefore, its sweetness is used as a carrier to guide Semen Lepidii Descurainiae upward, while its draining property is used to purge the lungs, acting like a boat or oar to carry the medicine.
[Qianjin Weijing Decoction]
Phragmitis Rhizoma (Weijing) [two jin], Coicis Semen (Yiyiren) [half a jin], Persicae Semen (Taoren) [50 seeds], Benincasae Semen (Gua Ban) [half a jin].
Take the above four ingredients. Decoct in ten dou of water. First, decoct Phragmitis Rhizoma to obtain five sheng of liquid, remove the dregs, then add the remaining herbs. Decoct further to obtain two sheng of liquid. Take one sheng per dose. After taking it again, pus-like material should be vomited.
"Wei" refers to the thick part of reeds; "Jing" refers to the stem. Inferring the author's intent, this formula targets diseases located above the diaphragm, using the method of inducing vomiting to expel pathogens. Lung abscess (Fei Yong) arises from the mixing of qi and blood, and the lack of distinction between Ying (Nutritive) and Wei (Defensive) qi. Two ingredients cool the qi, and two ingredients promote blood circulation, clarifying the Ying and Wei qi. By following the pathological trend to induce upward expulsion, this is indeed the primary strategy. For the "Gua Ban," Luffae Fructus Retinervia (Siguazi) is preferred. Li Shizhen stated: The meridians of Luffa are interconnected, and its internal structure is linked, enabling it to unblock the meridians and organs of the human body, reduce swelling, resolve phlegm, treat various blood disorders, and has a synergistic relationship with Persicae Semen. Coicis Semen directs qi downward, while Phragmitis Rhizoma ascends. One ascends and one descends, agitating and promoting the movement of qi and blood. Thus, tissue that has not yet necrotized will not form pus, and already ruptured abscesses can be expelled through vomiting. Currently, tender Phragmitis Rhizome is often used; its cold nature clears heat. Benincasae Semen has an urgent tendency to descend. Combined with the two seeds, it becomes a moistening and purgative formula. Borrowed to treat lung abscess, its rationale is quite sound.
[Bentun Decoction]
Glycyrrhizae Radix et Rhizoma (Gancao) [two liang], Ligustici Chuanxiong Rhizoma (Chuanxiong) [two liang], Angelicae Sinensis Radix (Danggui) [two liang], Pinelliae Rhizoma Preparatum (Banxia) [four liang], Scutellariae Radix (Huangqin) [two liang], Puerariae Radix (Shengge) [five liang], Paeoniae Radix Alba (Shaoyao) [two liang], Zingiberis Rhizoma Recens (Shengjiang) [four liang].
Take the above nine ingredients. Decoct in twenty dou of water to obtain five sheng of liquid. Take one sheng warm, three times a day and once at night.
"Ben" is synonymous with "Fen" (anger/urgency), commonly pronounced as "Ben"; "Tun" refers to the posterior orifice of a pig, or a young pig. This disease involves qi attacking upwards from the abdomen, similar to how a river pig thrusts its hindquarters in an attempt to retreat.