（《别录》下品）
【释名】 子。
时珍曰∶生于附子之侧，故名。许慎《说文》作 子。
【集解】弘景曰∶此附子边角之大者，削取之。昔时不用，比来医家以疗香港脚多验。
恭曰∶侧子、附子，皆是乌头下旁出者。以小者为侧子，大者为附子。今以附子角为侧
子，理必不然。若当阳以下、江左、山南、嵩高、齐鲁间，附子时复有角如大豆许。夔州以
上剑南所出者，附子之角，但如黍粟，岂可充用？比来都下皆用细附子有效，未尝取角也。
保升曰∶今附子边，果有角如大枣核及槟榔以来者，形状自是一颗，且不小。乃乌头旁
出附子，附子旁出侧子，甚明。
时珍曰∶侧子乃附子旁粘连小者尔，故吴普、陶弘景皆指为附子角之大者。其又小于侧
子者，即漏篮子矣。故杨氏《附子记》言∶侧子、漏篮，园人皆不重之，以乞役夫。
【修治】同附子。
【气味】辛，大热，有大毒。
普曰∶神农、岐伯∶有大毒。八月采。畏恶与附子同。
【主治】痈肿，风痹历节，腰脚疼冷，寒热鼠 。又堕胎（《别录》）。
疗香港脚，冷风湿痹，大风筋骨挛急（甄权）。冷酒调服，治遍
【发明】机曰∶乌头乃原生之脑，得母之气，守而不移，居乎中者也。侧子散生旁侧，
体无定在，其气轻扬，宜其发散四肢，充达皮毛，为治风之药。天雄长而尖，其气亲上，宜
其补上焦之阳虚。木鳖子则余气所结，其形摧残，宜其不入汤服，令人丧目也。
时珍曰∶唐·元希声侍郎，治瘫痪风，有侧子汤，见《外台秘要》，药多不录。
(Recorded in the Lower Category of *Bie Lu*)
[Names] Cezi.
Li Shizhen stated: It grows on the side of Fuzi (Processed Lateral Root of Aconitum carmichaelii), hence the name. Xu Shen's *Shuowen Jiezi* writes it as "Cizi".
[Collected Explanations] Tao Hongjing said: This is the larger part from the corners and edges of Fuzi, which is sliced off for use. It was not used in ancient times; recently, physicians have found it effective in treating Hongjiaojing (Gouty Arthritis/Chronic Foot Edema).
Su Gong said: Both Cezi and Fuzi are lateral outgrowths of Wutou (Radix Aconiti). The smaller ones are called Cezi, and the larger ones are called Fuzi. To regard the horn-like projections of Fuzi as Cezi is certainly incorrect. In regions south of Yangcheng, Jiangzuo, Shannan, Songgao, and Qilu, Fuzi occasionally has horn-like projections the size of soybeans. However, those produced in Jiannan north of Kuizhou have horn-like projections only the size of millet grains; how can these be used? Recently, fine Fuzi has been effective in the capital without taking the horn-like parts.
Bao Sheng said: Currently, there are indeed horn-like projections on the edges of Fuzi, some as large as jujube pits or betel nuts, forming a distinct, substantial entity. It is clear that these are Fuzi growing laterally from Wutou, and Cezi growing laterally from Fuzi.
Li Shizhen said: Cezi is merely the small pieces adhering to the side of Fuzi. Therefore, Wu Pu and Tao Hongjing both identified them as the larger horn-like parts of Fuzi. Those smaller than Cezi are called Loubanzi. Thus, Yang's *Fuzi Ji* states: Gardeners do not value Cezi and Loubanzi, often giving them to laborers.
[Preparation] Same as Fuzi.
[Properties and Flavors] Acrid, very hot, highly toxic.
Wu Pu said: Shennong and Qibo stated: Highly toxic. Harvested in August. Its incompatibilities and aversions are the same as Fuzi.
[Indications] Carbuncles and swellings, wind-bi with joint pain throughout the body, cold pain in the waist and feet, alternating chills and fever, and shulou (scrofula/lymphatic tuberculosis). It can also induce abortion (*Bie Lu*).
Treats Hongjiaojing (Gouty Arthritis), cold-damp bi syndrome, and tendon spasms caused by severe wind (Zhen Quan). Taken with cold wine, it treats generalized... [Text appears incomplete here].
[Elucidation] Kou Zongshi said: Wutou is the original central root head, possessing the mother's qi, remaining fixed in the center. Cezi grows scattered on the sides, its position being indefinite, and its qi is light and ascending, making it suitable for dispersing to the four limbs and penetrating the skin and hair, serving as an herb for treating wind pathogens. Tianxiong is long and pointed, its qi tends upward, making it suitable for tonifying yang deficiency in the upper jiao. Mugua Zi (Mumiguo) is formed from residual qi, its shape being damaged, so it should not be taken in decoctions, lest it cause blindness.
Li Shizhen said: Yuan Xisheng, Vice Minister of the Tang Dynasty, treated paralysis-wind using Cezi Tang, recorded in *Waitai Miyao*, though most ingredients were not listed.