诃子仁 百药煎 荆芥穗（等分）
共为末，蜜丸噙化。
久咳失气，此药亦宜用之；新咳者不宜用也。
《内经》曰∶薄之劫之。薄者，雷风相薄之薄，药病摩荡之名也。劫者，曹沫劫盟之劫
，取之不以正也。久咳失气，不用补剂，而用诃子、药煎之涩；肺有火邪，不用润剂，而用
荆芥穗之辛，故曰劫也。
蚌粉（新瓦炒红） 青黛（少许）
用淡齑水滴麻油数点调服。
绶带李防御，京师人，初为入内医官。值嫔御阁妃苦痰嗽，终夕不寐，面浮如盘，时方
有甚宠。徽宗幸其阁，见之以为虑，驰遣呼李。先数用药弗应。诏令往内东门供状，若三日
不效，当诛。李忧技穷，与妻对泣，忽闻门外叫云∶咳嗽药一文钱一帖，吃了今夜得睡。李
使人市药十帖，其色浅碧，用淡齑水滴麻油数点调服。李疑草药性厉，并三为一自试之，既
而无他，于是取三帖合为一，携入禁庭授妃，请分两服以饵。是夕嗽止，比晓面肿亦消。内
侍走白，天颜绝喜，锡金帛厥值万缗。李虽幸其安，而念必宣索方书，何辞以对？殆亦死尔。
命仆侍卖药人过，邀入坐，饮以巨盅。语之曰∶我见邻里服嗽药多效，意欲得方，倘以传我
诸物，为银百两，皆以相赠不吝。曰∶一文药，安得其值如此？防御要得方，当便奉告，只
蚌粉一物，新瓦炒令通红，拌青黛少许耳。扣其所从来。曰∶壮而从军，老而停汰，顷见主
帅有此，故剽得之，以其易办，姑借以度余生，无他长也。李给之终身焉。昆谓∶蚌粉咸而
枯，能软坚痰而燥湿；青黛寒而苦，能清肺膈而除热；齑汁酸咸，亦以软痰；麻油之加，欲
其就火而为向导之驱尔。
诃子仁、百药煎、荆芥穗（各取等量）
共同研磨成粉末，用蜂蜜制成丸剂，含化服用。
对于久咳导致的气虚失气症状，此药也适宜使用；但新近发生的咳嗽则不宜使用。
《黄帝内经》说：“薄之劫之。”“薄”，是指雷风相搏的“薄”，是药物与病邪相互激荡的名称。“劫”，是指曹沫在盟会上劫持齐桓公的“劫”，意为采取非正统的手段夺取。对于久咳导致的肺气耗散，不使用补益药剂，而使用诃子、百药煎的收敛涩滞之性；肺中有火邪，不使用滋润药剂，而使用荆芥穗的辛散之性，所以称之为“劫”。
蚌粉（在新瓦上炒至通红） 青黛（少量）
用淡醋水滴加几滴麻油调匀后服用。
绶带李防御，是京城人，起初担任入内医官。当时嫔妃阁中的妃子苦于痰嗽，整夜无法入睡，面部浮肿如盘大，当时她正受宠幸。宋徽宗巡视她的宫阁，见到这种情况感到忧虑，急忙派人召唤李防御。起初几次用药都没有见效。皇帝下诏命令他到内东门呈交供状，如果三天内没有疗效，就要被处死。李防御担忧技艺穷尽，与妻子相对哭泣，忽然听到门外叫卖声说：“治咳嗽的药一文钱一帖，吃了今晚就能睡觉。”李防御让人去买十帖药，药色浅碧，用法是用淡醋水滴加几滴麻油调服。李防御怀疑草药药性猛烈，便把三帖合在一起自己试服，之后没有其他反应，于是取三帖合并为一帖，带入宫廷交给妃子，请求分两次服用。当晚咳嗽停止，到天亮时面部肿胀也消退了。太监跑去报告，皇上非常高兴，赏赐的金帛价值上万缗。李防御虽然庆幸妃子平安，但想到皇帝必定会索要方书，用什么理由来应对呢？恐怕也是死路一条。于是命令仆人带着卖药的人经过，邀请入座，用大杯饮酒招待。对他说：“我看到邻里间服用这种咳嗽药大多有效，想要得到这个方子，如果你传授给我，其他物品作为一百两银子的报酬，我都毫不吝啬地赠送。”卖药人说：“一文钱的药，怎么能值这么多？”李防御一定要得到方子，卖药人才便告知：只是蚌粉这一味药，在新瓦上炒得通红，拌入少许青黛罢了。追问其来源，卖药人说：“年轻时从军，年老后被裁撤，不久前见主帅有这个方子，所以偷学得来，因为它容易办到，姑且借此度过余生，没有其他特长。”李防御欺骗性地让他终身享用这些财物。吴昆认为：蚌粉味道咸而具有枯燥之性，能软化坚硬的痰并燥湿；青黛性寒味苦，能清泄肺膈并除热；醋汁酸咸，也是为了软化痰液；加入麻油，是想借助其滑利之性作为引导药力到达病所的向导。
Hezi Ren (Pericarpium Arecae Catechuae), Baiyaojian (Fermented Tea Cake), Jingjie Sui (Cacumen Schizonepetae) (equal parts)
Grind all into powder, form pills with honey, and hold in the mouth to dissolve.
For chronic cough accompanied by loss of qi, this medicine is also suitable; however, it is not suitable for new-onset cough.
The *Huangdi Neijing* (Yellow Emperor's Inner Canon) states: "Bo zhi jie zhi" (Press and Rob). "Bo" refers to the pressing/striving as in "Lei Feng Xiang Bo" (thunder and wind striving against each other), denoting the mutual agitation between medicine and pathogen. "Jie" refers to the robbery/coercion as in "Cao Mo Jie Meng" (Cao Mo coercing the alliance), implying taking by unorthodox means. For chronic cough causing lung qi depletion, instead of using tonifying agents, astringent herbs like Hezi and Baiyaojian are used; for fire pathogens in the lung, instead of moistening agents, acrid herbs like Jingjie Sui are used. Hence, it is called "Jie" (Robbing).
Bangfen (Clam Shell Powder) (stir-fried on a new tile until red-hot) Qingdai (Indigo Naturalis) (a small amount)
Mix with light vinegar solution and a few drops of Sesame Oil (Sesami Oleum), then take orally.
Li Fangyu (Defender Li) of Shoudai was from the capital city, initially serving as an Internal Medical Officer. At that time, a consort in the Pin Yu Pavilion suffered severely from phlegm-cough, unable to sleep throughout the night, with her face swollen as large as a plate. She was currently highly favored by the emperor. Emperor Huizong visited her pavilion, saw her condition, and felt concerned. He urgently dispatched someone to summon Li. Initially, several doses of medication failed to produce results. An imperial edict ordered him to report at the Inner East Gate; if there were no effect within three days, he would be executed. Li was worried that his skills were exhausted and wept with his wife. Suddenly, they heard a cry outside selling medicine: "Cough medicine, one wen per packet; eat it and you will sleep tonight." Li sent someone to buy ten packets. The medicine was pale greenish-blue. The usage was to mix with light vinegar solution and a few drops of sesame oil. Suspecting that the herbal medicine might have harsh properties, Li combined three packets and tested them on himself. Finding no adverse reactions, he took the three packets, combined them into one, carried them into the forbidden palace, and gave them to the consort, requesting she divide them into two doses. That night, the cough stopped, and by dawn, the facial swelling had subsided. A eunuch ran to report this, and the Emperor's countenance was extremely joyful. He bestowed gold and silk worth over ten thousand min. Although Li was relieved that the consort was safe, he feared the emperor would inevitably demand the prescription book. What excuse could he offer? It would likely lead to his death. He instructed his servant to bring the medicine seller past the residence, invited him inside to sit, and treated him to a large cup of wine. Li said, "I have seen many neighbors benefiting greatly from this cough medicine. I wish to obtain the formula. If you transmit it to me, I will generously gift you various items worth one hundred taels of silver." The seller replied, "Medicine costing one wen, how can it be worth so much?" Insisting on obtaining the formula, Li finally got the answer: It is merely Bangfen (Clam Shell Powder), stir-fried on a new tile until thoroughly red-hot, mixed with a small amount of Qingdai (Indigo Naturalis). When asked about its origin, the seller said, "I joined the army when young and was discharged when old. Recently, I saw my commander using this, so I stole/learned it. Since it is easy to prepare, I borrowed it to survive my remaining years; I have no other special skills." Li deceived him, providing for him for life. Kun (Wu Kun) states: Bangfen is salty and drying, capable of softening hard phlegm and drying dampness; Qingdai is cold and bitter, capable of clearing the lung and diaphragm and removing heat; vinegar juice is sour and salty, also used to soften phlegm; the addition of sesame oil aims to use its lubricating nature as a guiding agent to direct the medicinal power to the site of the disease.