（《别录》下品）
【释名】时珍曰∶黄帝始作弩。刘熙《释名》云∶弩，怒也，有怒势也。
其柄曰臂，似人臂也。钩弦者曰牙，似人牙也。牙外曰郭。下曰悬刀。合名之曰机。
颂曰∶药用铜弩牙，以其有锡也。
【气味】平，微毒。
【主治】妇人难产，血闭，月水不通，阴阳隔塞（《别录》）。
【发明】弘景曰∶铜弩牙治诸病，烧赤纳酒中饮汁，古者弥胜。
刘完素曰∶弩牙速产，以机发而不括，因其用而为使也。
【附方】旧一。误吞珠钱，哽在咽者∶铜弩牙烧赤，纳水中，冷冻饮料汁，立愈。（《圣惠
方》）
（《纲目》）
【气味】有毒。
时珍曰∶铜器盛饮食茶酒，经夜有毒。煎汤饮，损人声。
藏器曰∶铜器上汗有毒，令人发恶疮内疽。
【主治】霍乱转筋，肾堂及脐下疰痛，并炙器隔衣熨其脐腹肾堂（大明）。古铜器畜之，
辟邪祟（时珍）。
【发明】时珍曰∶赵希鹄《洞天录》云∶山精水魅多历年代，故能为邪祟。三代钟鼎彝
器，历年又过之，所以能辟祟也。
铜钴 （一作钴KT ，熨斗也）
【主治】折伤接骨，捣末研飞，和少酒服，不过二方
寸匕。又盛灰火，熨脐腹冷痛（时珍）。
铜秤锤
【主治】产难横生，烧赤淬酒服（大明）。
铜匙柄
【主治】风眼赤烂，及风热赤眼翳膜，烧热烙之，频用妙（时珍）。
（收录于《名医别录》下品）
【释名】李时珍说：黄帝最初制造了弩。刘熙在《释名》中说：弩，取“怒”之意，是因为它具有迅猛的气势。弩的柄叫做“臂”，形状像人的手臂。钩拉弓弦的部分叫做“牙”，形状像人的牙齿。“牙”外面的部分叫做“郭”。下面的部分叫做“悬刀”。合起来统称为“机”。苏颂说：药用铜弩牙，是因为其中含有锡。
【气味】性平，微毒。
【主治】妇女难产，经血闭阻，月经不通，阴阳气机隔塞不通。（出自《名医别录》）
【发明】陶弘景说：用铜弩牙治疗各种疾病，将其烧红后放入酒中，饮用其汁液，这是古人认为更有效的用法。刘完素说：铜弩牙能加速分娩，因为弩机发射时不包裹束缚，顺应其使用的特性来发挥作用。
【附方】旧方一首。误吞珍珠钱币，卡在咽喉者：将铜弩牙烧红，投入水中，待水冷却后饮汁，立刻痊愈。（出自《太平圣惠方》）
（以下内容出自《本草纲目》）
【气味】有毒。
李时珍说：用铜器盛放饮食、茶或酒，过夜后会产生毒性。煎汤饮用，会损伤人的声音。
孟诜说：铜器上的汗渍有毒，会导致人发生恶疮和内疽。
【主治】霍乱引起的转筋（肌肉痉挛），肾区及脐下的疰痛（一种具有传染性或游走性的疼痛），可用炙热的铜器隔着衣服熨烫脐腹和肾区。（出自《日华子本草》）。收藏古铜器，可以辟除邪祟。（李时珍）
【发明】李时珍说：赵希鹄在《洞天录》中说：山精水怪大多历经年代久远，所以能作祟为邪。夏商周三代的钟鼎彝器等铜器，经历的年代更久，所以能够辟除邪祟。
铜熨斗（一作“钴”，即熨斗）
【主治】跌打损伤导致骨折，捣碎成末，经过飞研处理后，配合少量酒服用，不超过一方寸匕的量。另外，可装入灰火，用于熨烫脐腹冷痛。（李时珍）
铜秤锤
【主治】难产横生，烧红后浸入酒中，饮酒服用。（出自《日华子本草》）
铜匙柄
(Recorded in the Lower Category of *Bie Lu*)
[Names] Li Shizhen stated: The crossbow was first invented by the Yellow Emperor. Liu Xi, in his work *Shi Ming*, explained: "Nu" (crossbow) derives from "Nu" (anger/fury), indicating its rapid and forceful momentum. The handle is called the "Bi" (arm), resembling a human arm. The hook that draws the string is called the "Ya" (tooth), resembling human teeth. The part outside the tooth is called the "Guo" (frame). The lower part is called the "Xuandao" (hanging knife). Collectively, these parts are named the "Ji" (mechanism). Su Song stated: Medicinal copper crossbow teeth are used because they contain tin.
[Properties and Flavor] Neutral in nature, slightly toxic.
[Indications] Dystocia in women, blood stasis with amenorrhea, obstruction of menstruation, and blockage between Yin and Yang qi mechanisms (*Bie Lu*).
[Elucidation] Tao Hongjing stated: Copper crossbow teeth can treat various ailments; burning them red and immersing them in wine to drink the liquid was considered a superior method by the ancients. Liu Wansu stated: Crossbow teeth facilitate rapid childbirth because the mechanism releases without restraint, utilizing its inherent function for therapeutic effect.
[Prescriptions] One old prescription. For swallowing pearl coins or money causing choking in the throat: Burn a copper crossbow tooth until red, immerse it in water, and drink the cooled liquid for immediate relief (*Taiping Shenghui Fang*).
(The following content is from *Bencao Gangmu*)
[Properties and Flavor] Toxic.
Li Shizhen stated: Storing food, drinks, tea, or wine in copper vessels overnight generates toxicity. Decocting and drinking such water damages the voice.
Meng Shen stated: Sweat residues on copper vessels are toxic and can cause severe sores and internal abscesses.
[Indications] Muscle spasms (Zhuanjin) due to Huoluan (cholera-like syndrome), and Zhitong (wandering pain) in the kidney region and below the umbilicus; apply heat using a hot copper vessel through clothing to moxa-iron the abdomen and kidney area (*Rihua Zi Bencao*). Keeping ancient bronze vessels can ward off evil influences (Li Shizhen).
[Elucidation] Li Shizhen stated: Zhao Xigu, in *Dongtian Lu*, noted that mountain spirits and water demons often exist for long periods, thus capable of causing harm. Bronze vessels like bells, tripods, and ritual vessels from the Xia, Shang, and Zhou dynasties have existed even longer, hence their ability to dispel evil influences.
Copper Iron (also written as "Gu", meaning ironing tool)
[Indications] Fractures from trauma: Crush into powder, refine by flying (levigation), mix with a small amount of wine, and take orally. Do not exceed one Fangcunbi (a square-inch measure). Alternatively, fill with hot ashes and use to iron cold pain in the abdomen and umbilical region (Li Shizhen).
Copper Scale Weight
[Indications] Breech presentation or difficult labor: Heat until red, quench in wine, and drink the wine (*Rihua Zi Bencao*).
Copper Spoon Handle
[Indications] Wind-eye redness and ulceration, as well as wind-heat induced pterygium or corneal opacity in red eyes: Heat until red and cauterize the affected area. Frequent application yields excellent results (Li Shizhen).