（《唐本草》）
【释名】地不容（《唐本》）、苦药子（《图经》）。
【集解】恭曰∶地不容生川西山谷，采无时，乡人呼为解毒子也。
颂曰∶出戎州。蔓生，叶青如杏叶而大，浓硬，凌冬不凋，无花实。根黄白色，外皮微
粗褐，累累相连，如药实而圆大，采无时。又开州、兴元府出苦药子，大抵与黄药相类，春
采根，曝干。亦入马药用。
时珍曰∶《四川志》云∶苦药子出忠州。性寒，解一切毒。川蜀诸处皆有。即解毒子也。
或云∶ 州苦药子即黄药子，方言称呼不同耳。理
根
【气味】苦，大寒，无毒。
【主治】解蛊毒，止烦热，辟瘴疠，利喉闭及痰毒（《唐本》）。治五脏邪气，清肺压热
（苏颂）。消痰降火，利咽喉，退目赤（时珍）。
【附方】新二。咽喉肿痛，水浆不下∶苦药、山豆根、甘草、硝石各一分，射干、柑皮、
升麻各半两。为末，蜜丸。噙之。（《圣惠方》）
眉棱骨痛，热毒攻眼，头痛眉痛，壮热不止∶解毒子、木香、川大黄各三分，为末，浆
水调膏摊贴，干即易之。（《普济方》）
【附录】奴会子（《海药》）
曰∶味辛，平，无毒。主小儿无辜冷疳，虚渴脱肛，骨立瘦损，脾胃不磨。刘五娘
方，用为煎服。生西国诸戎。大小如苦药子。
药实根
《本经》曰∶味辛，温，无毒。主邪气诸痹疼酸，续绝伤，补骨髓。一名连木。
《别录》曰∶生蜀郡山谷。采无时。
恭曰∶此药子也，当今盛用，胡名那疏，出通州、渝州。其子味辛，平，无毒。主破血
止痢消肿，除蛊疰蛇毒。树生，叶似杏，花红白色，子肉味酸，止用其仁，《本经》误载根
字。
时珍曰∶此药子虽似黄药、苦药子，而稍有不同。二药子不结子，此则树之子也。葛洪
《肘后方》云∶婆罗门名那疏树子，中国人名药子。去皮取中仁，细研服，治诸病也。
(From *Tang Bencao*)
[Names] Di Burong (from *Tang Bencao*), Ku Yaozi (from *Tu Jing*).
[Collection and Explanation] Su Gong stated: Di Burong grows in the valleys of western Sichuan. It can be harvested at any time. Locals call it Jieduzi.
Su Song stated: It is produced in Rongzhou. It grows as a vine. The leaves are green, resembling apricot leaves but larger, thick and hard, remaining evergreen through winter. It does not flower or bear fruit. The root is yellowish-white; the outer skin is slightly coarse and brownish. The roots are clustered and connected, round and large like medicinal fruits. It can be harvested at any time. Additionally, Ku Yaozi is produced in Kaizhou and Xingyuan Prefecture, which is generally similar to Huang Yaozi. The roots are harvested in spring and sun-dried. It is also used for veterinary purposes for horses.
Li Shizhen stated: According to *Sichuan Zhi*, Ku Yaozi is produced in Zhongzhou. Its nature is cold, and it resolves all kinds of toxins. It grows throughout Sichuan and Shu regions. It is the same as Jieduzi. Some say that Ku Yaozi from certain prefectures is actually Huang Yaozi, differing only in dialectal names.
[Flavor and Properties] Bitter, very cold, non-toxic.
[Indications] Resolves gu poison, relieves vexatious heat, wards off miasma and pestilence, benefits throat obstruction and phlegm toxins (from *Tang Bencao*). Treats pathogenic qi in the five zang organs, clears lung heat and suppresses heat (Su Song). Resolves phlegm and descends fire, benefits the throat, reduces redness of the eyes (Li Shizhen).
[Attached Prescriptions] Two new prescriptions. For sore throat and swelling, inability to swallow water or gruel: Ku Yao, Dougen (Radix Sophorae Tonkinensis), Gancao (Radix Glycyrrhizae), Xiaoshi (Natrii Sulfas) each 1 fen; Shegan (Rhizoma Belamcandae), Ganpi (Pericarpium Citri Reticulatae), Shengma (Rhizoma Cimicifugae) each 0.5 liang. Grind into powder, form pills with honey. Hold in the mouth to dissolve (from *Shenghui Fang*).
For pain in the supraorbital ridge, heat toxin attacking the eyes, headache and brow pain, persistent high fever: Jieduzi, Muxiang (Radix Aucklandiae), Chuan Dahuang (Radix et Rhizoma Rhei) each 3 fen. Grind into powder, mix with Jiangshui (fermented rice water) to make a paste, apply topically. Change when dry (from *Puji Fang*).
[Appendix] Nu Huizi (from *Haiyao Bencao*)
Su Song stated: Pungent, neutral, non-toxic. Mainly treats infant innocent cold gan syndrome, deficiency thirst, rectal prolapse, emaciation with visible bones, and spleen-stomach failure to digest. In Liu Wuniang's prescription, it is decocted and taken orally. It grows in various barbarian lands of the Western Regions. Size is similar to Ku Yaozi.
Yaoshi Gen (Root of Yaoshi)
*Benjing* states: Pungent, warm, non-toxic. Mainly treats pathogenic qi causing various bi syndromes with pain and soreness, reconnects severed injuries, supplements bone marrow. Also known as Lianmu.
*Bielu* states: Grows in the valleys of Shujun. Can be harvested at any time.
Su Gong stated: This is the Yaoshi. It is widely used today. Its Hu name is Nasu. It is produced in Tongzhou and Yuzhou. Its seed is pungent, neutral, non-toxic. Mainly treats blood stasis, stops dysentery, reduces swelling, removes gu and zhhu poisoning, and snake venom. It grows on trees, leaves resemble apricot leaves, flowers are red and white. The flesh of the seed is sour. Only the kernel is used. *Benjing* erroneously recorded "root".
Li Shizhen stated: Although this Yaoshi resembles Huang Yaozi and Ku Yaozi, there are slight differences. These two do not produce seeds; this one is the fruit of a tree. Ge Hong's *Zhouhou Fang* states: The Brahman name is Nasu tree seed, while Chinese people call it Yaoshi. Remove the skin, take the inner kernel, grind finely, and take orally to treat various diseases.