重、外用杀虫。
辛寒阴毒。功颛杀虫。治疮疥虮虱。解金银铜锡毒。（能消五金。）堕胎绝孕。性滑重直
入肉
。（头疮切不可用、恐入经络、令人筋骨拘挛、若近男阳、阳痿无气、唯以赤金系患处、水
银
得铅则凝。得硫则结。并枣肉入唾研则碎。散失在地者。以花椒
末、茶末收之。畏慈石、砒霜。
燥、劫痰涎、外用杀虫。
辛冷而燥。有毒。杀虫治疮。劫痰消积。（能消涎积。）善入经络。螈 药有用之。不可
轻服
。（时珍曰∶水银阴毒、用火 炼丹砂而出、再加盐矾、炼为轻粉、轻扬燥烈、走而不守、
今人用治杨梅毒疮、虽能劫风痰湿热从牙龈出、邪郁暂解、然毒瓦斯窜入经络筋骨、血液耗亡
、筋失所养、变为筋挛骨痛、痈肿疳漏、遂成废痼、贻害无穷。上下齿龈、属手足阳明肠
胃经、毒瓦斯循经上行、至齿龈薄嫩之处而出。）土茯苓、黄连、黑铅、铁浆、陈酱。能制其
毒。粉霜、功过略同。
燥、破积劫痰。
辛温有毒。破积滞。劫痰涎。散结胸。疗疥癣恶疮。杀虫及虱。其性燥烈。能烂龈挛筋。
其
功过与轻粉、粉霜同。（今厨人往往以之染色供馔、宜去之。）
重、解毒杀虫。
辛温有毒。独入厥阴气分。搜肝气而散肝风。杀百毒。辟鬼魅。治惊痫。痰涎积聚。头
痛眩
晕。暑疟 痢泄泻。（夷坚志云∶虞雍云∶道中冒暑、泄痢连月、梦至仙居、延之坐、壁中
有词云∶暑毒在脾、湿气连脚、不泄则痢、不痢则疟、独炼雄黄、蒸饼和药、甘草作汤、食
之安乐、别作治疗、医家大错、如方服之而愈。）又能化血为水。燥湿杀虫。治劳疳蛇伤。（
焚之、蛇皆远去。）敷杨梅疔毒。疥癣痔疡。血虚者大忌。生山之阳。赤似鸡冠。明彻不臭
。重三五两者良。醋浸。入莱菔汁煮干。生山之阴者。名雌黄。功用略同。劣者名熏黄。烧
之则臭。只堪熏疮疥。杀虫虱。（阴肿如斗、雄黄矾石各二两、甘草一尺、水五升、煮二升
、浸之。）
（水银）质重，外用可杀虫。
性味辛、寒，属阴毒。功效专于杀虫。治疗疮疥及虮虱。能解除金银铜锡的毒性。（能够溶解五金。）具有堕胎和绝育的作用。其性质滑润沉重，直入肌肉组织。（头部疮疡切不可使用，恐怕药力进入经络，导致人体筋骨拘挛；若接触男性生殖器，会导致阳痿无力。只有用赤金系在患处，因为水银遇到铅就会凝固，遇到硫磺就会结块，并与枣肉混合唾液研磨才会碎裂。散落在地上的水银，可以用花椒末和茶末来收集。水银畏惧慈石和砒霜。）
（轻粉）燥烈，劫夺痰涎，外用杀虫。
性味辛、冷而燥。有毒。杀虫并治疗疮疡。劫夺痰涎，消除积滞。（能够消除痰涎积滞。）善于进入经络。蜈蚣等药物中有时会用到它。不可轻易内服。（李时珍说：水银是阴毒之物，用火炼丹砂提炼而出，再加盐和白矾，炼制成轻粉，其性轻扬燥烈，走窜而不守静。如今人们用它治疗杨梅毒疮，虽然能劫夺风痰湿热从牙龈排出，邪气郁结暂时解除，但是毒瓦斯窜入经络筋骨，耗亡血液，筋脉失去滋养，变为筋挛骨痛、痈肿疳漏，最终成为废疾顽症，贻害无穷。上下齿龈，属于手足阳明肠胃经，毒瓦斯顺着经络上行，到达齿龈薄嫩之处而排出。）土茯苓、黄连、黑铅、铁浆、陈年酱醋，能够制约其毒性。粉霜的功效与轻粉大致相同。
（粉霜）燥烈，破除积滞，劫夺痰涎。
性味辛、温，有毒。破除积滞。劫夺痰涎。消散结胸。治疗疥癣恶疮。杀虫及虱子。其性质燥烈，能够腐蚀牙龈、拘挛筋脉。其功效与缺点与轻粉、粉霜相同。（如今厨师往往用它来染色供食物食用，应当去除这种做法。）
（雄黄）质重，解毒杀虫。
性味辛、温，有毒。独入厥阴气分。搜剔肝气并疏散肝风。杀灭百毒。辟除鬼魅。治疗惊痫。痰涎积聚。头痛眩晕。暑疟、痢疾、泄泻。（《夷坚志》记载：虞雍公说：在路上冒受暑热，腹泻痢疾连续数月，梦见来到仙境，邀请他坐下，墙壁中有词句写道：暑毒在脾，湿气连脚，不腹泻则成痢疾，不痢疾则成疟疾，单独炼制雄黄，用蒸饼和药，甘草煮汤，服用后安乐，另作治疗是医家的大错，照方服用而痊愈。）又能将血化为水。燥湿杀虫。治疗劳疳、蛇咬伤。（焚烧雄黄，蛇都会远远避开。）敷贴杨梅疔毒、疥癣、痔疡。血虚者大忌。产于山的南面，颜色红得像鸡冠，明亮透彻且无臭味。重量在三到五两的为良材。用醋浸泡，放入莱菔汁中煮干。产于山的北面，名叫雌黄，功用大致相同。劣质的名叫熏黄，烧之则有臭味，只可用于熏治疮疥、杀虫虱。（阴囊肿大如斗，用雄黄、矾石各二两，甘草一尺，水五升，煮取二升，浸泡患处。）
(Shuiyin / Mercury) Heavy in nature, externally used to kill parasites.
Pungent and cold, belonging to Yin toxicity. Its function is exclusively for killing parasites. It treats sores, scabies, lice, and nits. It resolves the toxicity of gold, silver, copper, and tin. (It can dissolve the five metals.) It causes abortion and sterilization. Its nature is slippery and heavy, penetrating directly into the flesh. (For head sores, it must absolutely not be used, lest the medicinal power enter the meridians, causing stiffness and contraction of muscles and bones; if it comes into contact with the male genitalia, it leads to impotence and lack of vital energy. Only by tying red gold to the affected area can it be managed, because Mercury coagulates when meeting Lead, and solidifies when meeting Sulfur, and only crumbles when ground with jujube pulp and saliva. Mercury scattered on the ground can be collected using pepper powder and tea powder. Mercury fears Magnetite and Realgar/Orpiment mixture [Bishuang/Arsenic Trioxide].)
(Qingfen / Calomel) Dry and astringent, seizing phlegm-saliva, externally used to kill parasites.
Pungent, cold, and dry. Toxic. Kills parasites and treats sores. Seizes phlegm and eliminates accumulations. (It can eliminate phlegm-accumulations.) It penetrates well into the meridians. It is sometimes used in medicines containing centipedes. It should not be taken lightly internally. (Li Shizhen said: Mercury is a Yin toxic substance, extracted from cinnabar by fire refining, and further refined with salt and alum into Qingfen. Its nature is light, rising, dry, and fierce, moving freely without staying put. Nowadays, people use it to treat yaws. Although it can seize wind-phlegm-dampness-heat and expel them from the gums, temporarily relieving the constrained pathogenic factors, the toxic vapors penetrate into the meridians and bones, consuming blood and essence. The sinews lose nourishment, transforming into tendon spasms and bone pain, carbuncles, sores, and fistulas, eventually becoming chronic disabilities, causing endless harm. The upper and lower gums belong to the Hand-Yangming Large Intestine and Foot-Yangming Stomach meridians. Toxic vapors travel up along these meridians and exit at the tender gum tissue. Smilax glabra, Coptis chinensis, Black Lead, Iron Slurry, and aged vinegar can restrain its toxicity. Fen Shuang / White Mercurous Chloride has similar functions and drawbacks.)
(Fen Shuang / White Mercurous Chloride) Dry and astringent, breaking down accumulations and seizing phlegm.
Pungent and warm, toxic. Breaks down stagnations. Seizes phlegm-saliva. Disperses chest nodules. Treats scabies, tinea, and malignant sores. Kills parasites and lice. Its nature is dry and fierce, capable of corroding gums and causing tendon contractions. Its efficacy and drawbacks are the same as Qingfen and Fen Shuang. (Nowadays, cooks often use it to color food for consumption, which should be eliminated.)
(Xionghuang / Realgar) Heavy in nature, detoxifying and killing parasites.
Pungent and warm, toxic. Enters exclusively into the Jueyin Qi level. Searches out Liver Qi and disperses Liver Wind. Kills hundred toxins. Ward off evil spirits. Treats convulsions and epilepsy. Phlegm-saliva accumulations. Headache and dizziness. Summerheat malaria, dysentery, and diarrhea. (The *Yijian Zhi* records: Yu Yonggong said: While traveling, I was exposed to summerheat, suffering from diarrhea and dysentery for months. I dreamed of arriving in a fairy dwelling, where I was invited to sit. There were verses on the wall saying: Summerheat toxin resides in the Spleen, dampness connects to the feet; if not diarrhea, then dysentery; if not dysentery, then malaria. Alone refine Realgar, mix medicine with steamed dough, decoct Licorice root as soup, consume it for peace and joy. Seeking other treatments is a great error by physicians. Following this prescription led to recovery.) It can also transform blood into water. Dries dampness and kills parasites. Treats consumptive disease with infantile malnutrition (Lao Gan) and snake bites. (When burned, snakes flee far away.) Applied topically for yaws, carbuncles, scabies, tinea, hemorrhoids, and ulcers. Greatly contraindicated for those with Blood deficiency. Grown on the sunny side of mountains, red like a rooster's comb, bright and clear without odor. Those weighing three to five taels are of good quality. Soak in vinegar, boil dry in radish juice. Grown on the shady side of mountains is named Xiehuang / Orpiment, with similar functions but inferior quality. Inferior ones are called Xun Huang, which smell bad when burned, suitable only for fumigating sores and killing lice. (For阴肿 like a beanbag, use Realgar and Alum each two liang, Licorice root one chi, water five sheng, boil to two sheng, soak the affected area.)