（《三因》）
治虫啮腹痛，作止有时，或耕起来往（腹痛有作止者，虫啮则痛，不啮则止也。气耕往
来
大黄（炒，两半） 鹤虱（炒） 槟榔 诃子皮 芜荑（炒） 木香 干姜（炒） 附
子（七钱
此足阳明药也。虫喜温恶酸而畏苦，故用姜、附之热以温之，乌梅、诃子皮之酸以伏之
，大黄、槟榔、芜荑、鹤虱之苦以杀之，木香辛温以顺其气也。
治腹痛胃痛，干痛有时干痛者，不吐不泻而但痛也；有时者，淡食而饥则痛，浓味而饱
则否，此为虫也。
雄黄 槟榔 白矾，等分。饭丸。每五分，食远服。
此手足阳明药也。雄黄之辛毒，槟榔之苦降，白矾之酸涩，皆杀虫之品也，故合用以治
之。
治肠胃诸虫为患肠（胃之中无物不容，所以变生诸虫者，缘正气虚衰，或误食生虫之物，
或湿热蒸郁而成，亦犹物必先腐而后虫生之义也）。
鹤虱 胡粉（炒） 苦楝根（东引未出土者） 槟榔（一两）芜荑 使君子（五钱） 枯
矾（二
此手足阳明药也。数药皆杀虫之品也，单用尚可治之，类萃为丸，而虫焉有不死者乎（吴
鹤皋曰∶古方杀虫，如雷丸、贯众、干漆、蜡矾、百部、铅灰之类，皆其所常用者也。有加
附子、干姜者，壮正气也；加苦参、黄连者，虫得苦而伏也；加乌梅、诃子者，虫得酸而软
也；加藜芦、瓜蒂者，欲其带虫吐出也；加芫花、黑丑者，欲其带虫泻下也；用雄黄、川椒、
蛇床、樟脑、水银、槟榔者，治疮疥之虫也；用胡桐泪、莨菪子、韭子、蟾酥者，治龋齿之
虫也；用川槿皮、海桐皮者，治风癣之虫也；用青葙子、覆盆叶者，治九窍 蚀之虫也；用
败鼓心；桃符板、虎粪骨、死人枕、獭爪、鹤骨者驱劳瘵之虫也）。
(From *San Yin Ji Yi Bing Zheng Fang Lun*)
Treats abdominal pain caused by worm bites, where the pain occurs and ceases at specific times. The term "geng qi lai wang" (referring to intermittent abdominal pain: pain arises when worms bite and ceases when they do not; reflecting the movement of Qi) is addressed with Dahuang (Stir-fried, 1.5 liang), Leshe (Stir-fried), Binglang, Hezi Pi, Wuyi (Stir-fried), Muxiang, Ganjiang (Stir-fried), and Fuzi (7 qian).
This prescription targets the Foot Yangming channel. Worms favor warmth, dislike sourness, and fear bitterness. Therefore, the heat of Ganjiang and Fuzi is used to warm them; the sourness of Wu Mei and Hezi Pi is used to subdue them; the bitterness of Dahuang, Binglang, Wuyi, and Leshe is used to kill them; and the acrid-warm nature of Muxiang is used to regulate Qi.
Treats abdominal and stomach pain characterized by dry pain occurring intermittently. "Dry pain" refers to pain without vomiting or diarrhea; "intermittent" means pain occurs when hungry after eating light food, but does not occur when full after eating rich food. This indicates a parasitic condition. Xionghuang, Binglang, and Baifan are mixed in equal proportions. Formed into pills using rice paste. Take 5 fen per dose, administered well after meals.
This prescription targets the Hand and Foot Yangming channels. The acrid toxicity of Xionghuang, the bitter descending nature of Binglang, and the astringent sourness of Baifan are all substances that kill parasites; thus, they are combined to treat this condition.
Treats various gastrointestinal parasitic infestations. (The stomach accommodates all manner of substances, which can give rise to parasites due to deficiency and decline of righteous Qi, ingestion of items containing parasite eggs, or steaming and stagnation of damp-heat. This follows the principle that an object must first rot before worms can grow within it.) Leshe, Hufen (Stir-fried), Kuligen (East-growing, ungerminated roots), Binglang (1 liang), Wuyi, Shijunzi (5 qian), and Kufan (2 liang) are used.
This prescription targets the Hand and Foot Yangming channels. These drugs are all agents for killing parasites. They can be effective even when used singly; however, gathering similar agents into a pill form ensures that parasites will inevitably die. (Wu Hegao stated: Ancient formulas for killing parasites commonly used substances such as Leiwuan, Guanzhong, Ganqi, Lafan, Baibu, and Qianhui. Some formulas add Fuzi and Ganjiang to strengthen righteous Qi; add Kushen and Huanglian because parasites are subdued by bitterness; add Wu Mei and Hezi because parasites are softened by sourness; add Lili and Gouti to expel parasites via vomiting; add Yuanhua and Heichou to expel parasites via purgation; use Xionghuang, Chuanjiao, Shechuangzi, Zhangnao, Shuiyin, and Binglang to treat parasites causing sores and scabies; use Hutonglei, Langdangzi, Jiuizi, and Chansu to treat parasites causing dental caries; use Chuanjinpi and Haitongpi to treat parasites causing wind-xuan; use Qingxiangzi and Fupenyè to treat parasites eroding the nine orifices; use Baiguxin, Taofuban, Hufen gu, Siren zhen, Tazhao, and Hegu to drive out parasites causing consumption/labor disease.)