辛，温。消积，止血。敷口舌诸疮，消痘疹痈肿。得棕炭，治胎动下血。配川连，治挟
热下痢。
（十七种）
得余甘子、驴马脂则体柔。畏水银、翡翠石。恶锡。
辛，平。有毒。除热避邪，镇心肝，安魂魄。止惊悸，治风痫。杀轻粉毒。
百炼者无毒，方可入药，不得过一分。伤肌损骨，不宜多用。生者有毒杀人，中其毒者，
鹧鸪肉可解。
畏石亭脂、砒石、磁石、荷叶、蕈灰、羚羊角、乌贼骨、黄连、甘草、飞廉、鼠尾、
龟甲、生姜、地黄、羊脂、紫苏子。恶锡、马目毒公、羊血。
辛，寒。无毒。定心神，止惊悸，除狂热，避诸邪。得葱白、阿胶、糯米煎服，治胎热
横闷。得苎根，酒水煎服，
治胎动欲堕。
凡用，只可煎汁借气，以生药力，勿入药服，以消人脂。
一名髓铅
辛，平。散血定痛。续筋接骨。
火 ，醋淬七次，研末，甘草水飞过用。
即铜青
酸、涩、性平。微毒。入足厥阴、少阳经。吐风痰，治恶疮、疳疮、金疮、风弦烂眼、
泪出。止血杀虫。配滑石、
杏仁，擦走马疳。配枯矾，治口鼻疮。
一名黑锡
畏紫背天葵。
甘，寒。秉北方癸水之气，阴极之精，其体重实，其性濡滑，其色黑，内通于肾。治一
切阴
有反正之功。但性带阴毒，不可
多服，恐伤人心胃。用铅两许，水煎，冲蔗汁、梨汁服，败毒除狂。和蒸饼为丸，治反胃哕
逆。（用铅烊化，柳木捶研成
粉，一两入米醋一升，砂锅熬膏，用陈小麦粉为饼，入铅膏少许，蒸熟杵，丸如绿豆大，每
一丸淡姜汤下。）阴火冲逆，
真阳
[Baicaoshuang (Soot from Cooking Stove)]
Pungent, warm. Eliminates accumulation and stops bleeding. Applied externally to treat various sores of the mouth and tongue; reduces carbuncles and swellings caused by smallpox and measles. Combined with Zongtan (Charred Palm Fiber), it treats threatened abortion with vaginal bleeding. Paired with Chuanlian (Coptidis Rhizoma), it treats dysentery complicated with heat.
(The following introduces seven types of Lead preparations)
[Qianbaishuang (Lead Subcarbonate)]
When combined with Yuganzi (Phyllanthus emblica) and Lvma zhi (Fat of Donkey or Horse), its texture becomes soft. It is incompatible with Shuiyin (Mercurii Bichloridum), Feicuishi (Chrysoprasis), and dislikes Xi (Tin).
Pungent, neutral. Toxic. Clears heat and expels pathogenic factors; calms the Heart and Liver; stabilizes the Hun and Po. Stops palpitations and fright; treats wind-phlegm convulsions. Antidotes for Qingfen (Calomel) poisoning. Lead subcarbonate refined a hundred times is non-toxic and suitable for medicinal use, but the dosage must not exceed one fen. Improper use damages muscles and bones; thus, it should not be used in large amounts. Raw lead is toxic and can be fatal; poisoning can be antidoted with Zhegu rou (Meat of Francolin).
It is incompatible with Shitingzhi (Stibnite), Pishi (Arsenic Trioxide), Cishi (Magnetitum), Heye (Nelumbinis Folium), Xunhui (Ash of Mushroom), Lingyangjiao (Saiga Tataricae Cornu), Oubuguzhe (Sepiae Endoconcha), Huanglian (Coptidis Rhizoma), Gancao (Glycyrrhizae Radix et Rhizoma), Feilian (Cardui Thistle), Shuwei (Artemisia argyi caulis), Guijia (Testudinis Carapax et Plastrum), Shengjiang (Zingiberis Rhizoma), Dihuang (Rehmanniae Radix), Yangzhi (Sheep Fat), Zisuzi (Perillae Fructus). It dislikes Xi (Tin), Mumingdugong (Unknown toxin), and Yangxue (Sheep Blood).
[Mituoseng (Litharge)]
Pungent, cold. Non-toxic. Calms the mind, stops palpitations, clears intense fever, and expels various pathogens. When decocted with Congbai (Scallion Stem), Ejiao (Donkey-hide Gelatin), and Nuomi (Glutinous Rice), it treats uterine heat causing chest oppression and fullness. When combined with Zhugen (Bletilla Rhizoma) and decocted with wine and water, it treats threatened abortion due to fetal restlessness.
In usage, only the decoction liquid should be taken to utilize its qi and the power of the raw material; do not ingest the dregs, as they may consume body fat.
[Huangdan (Red Lead)]
Also known as Suilian (Medullary Lead).
Pungent, neutral. Disperses blood stasis and relieves pain. Heals tendons and reconnects bones.
Calcined over fire, quenched seven times in vinegar, ground into powder, and processed using Glycyrrhiza water (floating method to remove impurities).
[Tongqing (Verdigris)]
Also known as Tonglv (Copper Acetate).
Acid, astringent, neutral. Slightly toxic. Enters the Foot Jueyin Liver Meridian and Foot Shaoyang Gallbladder Meridian. Induces vomiting to expel wind-phlegm; treats malignant sores, gan sores (childhood malnutrition ulcers), traumatic wounds, blepharitis with ulceration, and excessive tearing. Stops bleeding and kills parasites. When rubbed with Huashi (Talcum) and Xingren (Prunus Armeniaca Semen), it treats gangrenous stomatitis (Zouma Gan). When paired with Kufan (Alumen Exsiccatum), it treats sores of the mouth and nose.
[Heixi (Black Tin)]
Also refers to the lead component in Black Tin Pill.
Dislikes Zi Bei Tiankui (Ophiopogon japonicus var. purpureus).
Sweet, cold. Inherits the qi of Northern Gui Water; it is the essence of extreme Yin. Its substance is heavy and solid, its nature is moist and slippery, its color is black, and it internally connects to the Kidney. It treats all Yin disorders and has the function of restoring Yin to normality. However, its nature carries Yin toxicity; it should not be taken in excess, lest it damage the Heart and Stomach. Using approximately two liang of lead, decocted in water, mixed with Sugarcane juice and Pear juice, it eliminates toxins and calms mania. Formed into pills with steamed dough, it treats regurgitation and hiccups. (Preparation: Melt lead, hammer and grind into powder with willow wood. Take one liang of powder, add one sheng of rice vinegar, boil in a clay pot until a paste forms. Mix with a small amount of this lead paste into old wheat flour dough, steam until cooked, pound into consistency, and form pills the size of mung beans. Take one pill per dose with mild ginger soup.) Used for counterflow of Yin-fire and deficiency of True Yang...