制同附子。初种为乌头，象乌之头也。附乌头而生者为附子，如子附母也。乌头如
芋魁，附子如芋子，盖一物也。别有草乌、白附，故以黑附、川乌别之。
辛，甘，大温，有毒。除诸风风痹风邪，半身不遂之风，祛诸寒寒湿寒冷，坚痞老积之
寒。
功同附子，助阳之力稍缓，祛风之力则盛。乌头尖吐风痰，治癫痫取其锋锐，无他意也。
生犍为山谷及广汉。冬采为附子，春采为乌头。今绵州乃广汉故地。绵州所属彰明所产尤多
。盖十一月播种，春月生苗。茎类野艾而泽，叶类地麻而浓。其花紫瓣黄蕤，长苞而圆。其
初种之小者为乌头，附乌头旁生者为附子，又左右附而偶生者为乌喙，附而长生者为天雄，
附而上出者为侧子。春末生子，故曰春采为乌头。冬月生子已成，故冬采为附子。盖附子乃
乌头所生之子也。
腰脚冷痹痛，生川乌为末，醋合敷之。（验方第一。）
香港脚肿痛久者，生附子为末，姜汁合涂。（第二。）
年久头痛，川乌、南星末、葱汁合敷太阳穴。（第三。）
头风斧劈，川乌末烧烟熏碗中，茶泡服之。（第四。）
耳鸣不已，生乌头烧末，菖蒲等分，绵包塞之，日易之。（第五。）
耳猝聋醋炙附子，削尖插入耳中。（第六。）
手足冻裂，附子为末，合面敷之。（第七。）
附子汤 附子 茯苓 白术 人参 白芍
治身体骨节俱痛，手足寒，脉沉微。（诸方第一。）
桂枝加附子汤 桂枝 白芍 炙草 姜 枣 附子
治因发汗成漏，小便难，四肢急，屈伸不便，恶风。（第二。）
附子泻心汤 附子 大黄 黄连 黄芩
附子煎，三黄用水渍之。治心下痞，恶寒汗出者。（第三。）
桂枝附子汤 桂枝 附子 甘草 生姜 大枣
治骨节痛，小水不利，不渴者。（第四。）
仙桃丸 生乌头 五灵脂 威灵仙
酒丸豆大，每酒下七丸，忌茶。治手足麻痹疼痛，或瘫痪疼痛，或腰膝痹痛。（第五。）
姜附汤 附子 干姜
治中寒困昏，脐腹冷痛，霍乱转筋。（第六。）
乌头煎 乌头
煎去渣，纳蜜再煎。治绕脐寒疝痛，手足冷，自汗脉紧。（第七。）
再造散 乌头 当归 台参 桂枝 川断 乌蛇 甘草 茅术 川芎 羌活 松
节牛膝
防风治瘫痪。（第八。）
小活络丹（舒筋最宜。） 天麻 白附子 牛膝 木鳖子 羌活（各五钱。） 乌
头（一钱）
地龙（焙） 乳香 没药（各一钱） 朱砂（一钱） 南星（五钱）
酒丸豆大。治两脚无力，小儿不能行，成痿症者。（第九。）
炮制方法同附子。初次种植的是乌头，因其形状像乌鸦的头而得名。依附在乌头上生长的是附子，就像孩子依附于母亲一样。乌头的块根像芋头的母块（芋魁），附子像芋头的子块（芋子），它们实际上是同一株植物的不同部分。另外还有草乌和白附子，所以用黑附子和川乌来加以区分。
味辛、甘，性大温，有毒。能祛除各种风邪引起的风痹和风邪病证，治疗半身不遂这类由风引起的病症；能祛除各种寒邪、寒湿和寒冷之邪，消除坚硬痞块和久积的寒凝病灶。
功效与附子相同，但助阳的力量稍弱，祛风的力量则更强。乌头尖部能催吐风痰，治疗癫痫时利用其锋锐之性，并无其他深意。
产于犍为山谷及广汉地区。冬季采挖作为附子，春季采挖作为乌头。现在的绵州就是古代的广汉故地。绵州所属彰明县出产的尤其多。大约在十一月播种，春月生出苗芽。茎类似野艾草但有光泽，叶类似地麻草但更浓密。花朵有紫色花瓣和黄色花蕊，苞片长而圆。最初种植的较小者称为乌头，依附在乌头旁生长者称为附子，又左右依附并成对生长者称为乌喙，依附且长得较长者称为天雄，依附且向上突出者称为侧子。春末结出果实，所以说春季采挖的是乌头。冬季时果实已经长成，所以说冬季采挖的是附子。大概附子是乌头所生的果实。
腰部和脚部冷痹疼痛，将生川乌研成粉末，用醋调和后敷贴患处。（验方第一。）
香港脚（足踝肿痛）肿胀疼痛日久者，将生附子研成粉末，用姜汁调和涂抹。（第二。）
多年头痛，将川乌、天南星研成粉末，用葱汁调和敷贴在太阳穴上。（第三。）
头部剧烈疼痛如斧劈样，将川乌研末燃烧产生烟雾，在碗中用茶泡服。（第四。）
耳鸣不止，将生乌头烧成灰烬研末，与石菖蒲等份混合，用棉布包裹塞入耳中，每日更换。（第五。）
附子汤：附子、茯苓、白术、人参、白芍。
治疗身体骨节都疼痛，手脚冰凉，脉象沉微。（诸方第一。）
桂枝加附子汤：桂枝、白芍、炙甘草、生姜、大枣、附子。
治疗因发汗过度导致汗漏不止，小便困难，四肢拘急，屈伸不便，怕风。（第二。）
附子泻心汤：附子、大黄、黄连、黄芩。
先煎附子，三黄（大黄、黄连、黄芩）用水浸泡。治疗心下痞满，怕冷且出汗者。（第三。）
桂枝附子汤：桂枝、附子、甘草、生姜、大枣。
治疗骨节疼痛，小便不利，口不渴者。（第四。）
仙桃丸：生乌头、五灵脂、威灵仙。
用酒制成豆大的药丸，每次用酒送服七丸，忌食茶。治疗手足麻痹疼痛，或瘫痪疼痛，或腰膝痹痛。（第五。）
姜附汤：附子、干姜。
治疗中寒导致的昏迷，脐腹冷痛，霍乱转筋。（第六。）
乌头煎：乌头。
煎煮去渣，加入蜂蜜再煎。治疗绕脐寒疝痛，手脚冰冷，自汗，脉紧。（第七。）
再造散：乌头、当归、台参、桂枝、川断、乌蛇、甘草、茅术、川芎、羌活、松节、牛膝、防风。
治疗瘫痪。（第八。）
小活络丹（舒筋最适宜）：天麻、白附子、牛膝、木鳖子、羌活（各五钱）、乌头（一钱）、地龙（焙干）、乳香、没药（各一钱）、朱砂（一钱）、天南星（五钱）。
用酒制成豆大的药丸。治疗两脚无力，小儿不能行走，成人患痿症者。（第九。）
Preparation methods are the same as for Fuzi (Aconiti Lateralis Radix Praeparata). The initially planted tuber is Wutou (Aconiti Radix), named because its shape resembles a crow's head. The tuber growing attached to Wutou is called Fuzi, just as a child attaches to its mother. The main tuber of Wutou resembles the mother tuber of a taro plant, while Fuzi resembles the lateral tubers; they are essentially from the same plant. There are also Caowu (Aconiti Kusnezoffii Radix) and Baifu (Gastrodiae Rhizoma), so Heifu (Black Fuzi) and Chuanwu (Sichuan Wutou) are used to distinguish them.
Pungent, sweet, greatly warm, toxic. It eliminates various wind-induced wind-bi syndromes and pathogenic wind; it treats hemiplegia caused by wind. It dispels various cold pathogens, cold-dampness, and chilling cold; it hardens and resolves old accumulations of cold.
Its efficacy is similar to Fuzi, but its power to assist Yang is slightly weaker, while its power to dispel wind is stronger. The tip of Wutou induces vomiting of wind-phlegm; in treating epilepsy, its sharp nature is utilized, with no other hidden meaning.
It grows in the valleys of Jianwei and Guanghan. It is harvested in winter as Fuzi and in spring as Wutou. Modern Mianzhou corresponds to the ancient land of Guanghan. The area under Mianzhou's jurisdiction, Zhangming, produces particularly large quantities. Sowing occurs around November, with seedlings emerging in spring. The stem resembles wild mugwort but is glossy; the leaves resemble ground hemp but are denser. The flowers have purple petals and yellow stamens, with long, round bracts. The smaller initial tuber is called Wutou; those growing attached to the side of Wutou are called Fuzi; those growing attached on left and right sides in pairs are called Wu Hui (Aconiti Radix); those growing attached and elongated are called Tianxiong (Aconiti Radix); those growing attached and protruding upward are called Cizi (Aconiti Lateralis Radix). Fruit forms in late spring, hence "spring harvest yields Wutou." In winter, the fruit is fully formed, hence "winter harvest yields Fuzi." Essentially, Fuzi is the lateral tuber produced by Wutou.
For cold-bi pain in the waist and legs, grind raw Chuanwu into powder, mix with vinegar, and apply externally. (Verified Formula 1.)
For chronic swelling and pain of Hongxiangjiao (podagra/ankle swelling), grind raw Fuzi into powder, mix with ginger juice, and apply topically. (Formula 2.)
For chronic headache, mix powders of Chuanwu and Tian Nan Xing (Arisaematis Rhizoma) with scallion juice, and apply to the Taiyang acupoints. (Formula 3.)
For severe headache resembling an axe blow, burn powdered Chuanwu to produce smoke, inhale or take tea brewed with the residue. (Formula 4.)
For persistent tinnitus, burn raw Wutou to ash, mix equally with Shi Chang Pu (Acori Tatarinowii Rhizoma), wrap in cotton, and insert into the ear, changing daily. (Formula 5.)
For sudden deafness, use vinegar-processed Fuzi, sharpened into a point, and insert into the ear. (Formula 6.)
For frostbite cracks on hands and feet, grind Fuzi into powder and mix with flour for external application. (Formula 7.)
Fuzi Tang (Aconite Decoction): Fuzi, Fuling (Poria), Baizhu (Atractylodis Macrocephalae Rhizoma), Renshen (Ginseng Radix), Baishao (Paeoniae Radix Alba).
Treats pain throughout the body and joints, cold hands and feet, and a deep, faint pulse. (Main Formula 1.)
Guizhi Jia Fuzi Tang (Cinnamon Twig Decoction plus Aconite): Guizhi (Cinnamomi Ramulus), Baishao, Zhi Cao (Honey-fried Licorice Root), Shengjiang (Fresh Ginger), Dazao (Jujube), Fuzi.
Treats leakage of sweat due to excessive sweating, difficulty urinating, stiffness and cramping of the four limbs, inability to flex and extend easily, and aversion to wind. (Formula 2.)
Fuzi Xie Xin Tang (Aconite Decoction for Draining the Epigastrium): Fuzi, Dahuang (Rhei Radix et Rhizoma), Huanglian (Coptidis Rhizoma), Huangqin (Scutellariae Radix).
Decoct Fuzi separately; soak the three yellows (Dahuang, Huanglian, Huangqin) in water. Treats epigastric fullness/stuffiness, aversion to cold, and spontaneous sweating. (Formula 3.)
Guizhi Fuzi Tang (Cinnamon Twig and Aconite Decoction): Guizhi, Fuzi, Gancao (Licorice Root), Shengjiang, Dazao.
Treats joint pain, difficult urination, and absence of thirst. (Formula 4.)
Xiantao Wan (Peach Immortal Pill): Raw Wutou, Wulingzhi (Trogopterori Faeces), Weilingxian (Synephorosae Caulis).
Form pills the size of beans using wine. Take seven pills with wine each time. Avoid tea. Treats numbness and pain in hands and feet, paralysis with pain, or bi-syndrome pain in the waist and knees. (Formula 5.)
Jiang Fu Tang (Ginger and Aconite Decoction): Fuzi, Ganjiang (Zingiberis Rhizoma).
Treats collapse due to cold invasion, cold pain in the umbilical and abdominal regions, Huoluan (cholera-like syndrome) with muscle spasms. (Formula 6.)
Wutou Jian (Wutou Decoction): Wutou.
Decoct, remove dregs, add honey, and decoct again. Treats cold hernia pain around the umbilicus, cold hands and feet, spontaneous sweating, and a tight pulse. (Formula 7.)
Zaizao San (Reconstruction Powder): Wutou, Danggui (Angelicae Sinensis Radix), Taishen (Codonopsis Radix), Guizhi, Chuanduan (Dipsaci Radix), Wushe (Bungarus Parvus), Gancao, Maoyu (Atractylodis Rhizoma), Chuanxiong (Ligustici Chuanxiong Rhizoma), Qianghuo (Notopterygii Rhizoma et Radix), Songjie (Pinus Massoniana Node), Niuxi (Achyranthis Bidentatae Radix), Fangfeng (Saposhnikoviae Radix).
Treats paralysis. (Formula 8.)
Xiao Huoluo Dan (Minor Channel-Unblocking Pill - Best for relaxing sinews): Tianma (Gastrodiae Rhizoma), Baifuzi (Gastrodiae Rhizoma), Niuxi, Muguaizi (Strychni Semen), Qianghuo (each 5 qian), Wutou (1 qian), Dilong (dried earthworm), Ruxiang (Olibanum), Moyao (Myrrha) (each 1 qian), Zhusha (Cinnabar, 1 qian), Nanxing (Arisaematis Rhizoma, 5 qian).
Form pills the size of beans using wine. Treats weakness in both legs, inability of children to walk, and adult Wei syndrome (flaccidity syndrome). (Formula 9.)