重，镇惊，劫痰，消积
辛咸小毒。感银铅之气而结。坠痰镇惊，止血散肿，消积杀虫，疗肿毒，愈冻疮（用桐
油调敷），解狐臭（油调搽腋。以馒头蒸热劈开，掺末夹腋下亦佳），染髭须。出银坑难得，
今用者乃倾银 底。入药煮一伏时。
重，镇心，定惊，泻热
体阳性阴（内含阴汞），味甘而凉，色赤属火（性反惊者，离中虚有阴也。味不苦而甘
者，火中有土也）。泻心经邪热（心经血分主药），镇心清肝，明目发汗（汗为心液），定惊
祛风，辟邪（胡玉少卿多恶梦，遇推官胡用之，胡曰∶昔常患此，有道士教戴灵砂而验。逐
解髻中绛囊授之，即夕无梦）解毒（胎毒、痘毒宜之），止渴安胎（《博救方》∶水煮一两，
研，酒服，能下死胎。李时珍曰∶同远志、龙骨之类养心气；同丹参、当归之类养心血；同
地黄、枸杞之类养肾；同浓朴，川椒之类养脾；同南星、川乌之类祛风。多服反令人痴呆）。
辰产，明如箭镞者良（名箭镞砂）。细研，水飞三次用（生用无毒，火炼则有毒，服饵常杀
人）。恶磁石。畏盐水。忌一切血（郑康成注《周礼》，以丹砂、雄黄、石胆、矾石、磁石为
五毒，古人用以攻疡）。
重，外用杀虫
辛寒，阴毒。功专杀虫。治疮疥虮虱（性滑重，且入肉。头疮切不可用，恐入经络，令
人筋骨拘挛），解金、银、铜、锡毒（能杀五金），堕胎绝孕。从丹砂烧 而出。畏磁石、砒
霜。得铅则凝，得硫则结，并枣肉入唾研则碎。散失在地者，以花椒、茶末收之。
[Mie Tuo Seng (Litharge)]
Heavy in nature, it calms fright and settles the spirit, resolves phlegm, and eliminates accumulations.
Pungent and salty, with slight toxicity. It forms by absorbing the qi of silver and lead. Its actions include sinking phlegm, calming fright, stopping bleeding, dispersing swelling, eliminating accumulations, killing parasites, treating sores and toxic swellings, healing frostbite (applied with tung oil), resolving fox odor (rubbed into the axillae with oil; alternatively, steamed bun split open, dusted with powder, and clamped under the armpit is also effective), and dyeing mustaches black. Those from silver mines are rare; currently used material is the dross from smelting silver. For medicinal use, boil for one fu period (12 hours).
[Cinnabar (Dan Sha)]
Heavy in nature, it anchors the heart, calms fright, and drains heat.
Its body is yang containing yin (contains yin mercury), taste is sweet and nature cool, color red belongs to fire (if taken and causes fright instead, it is because Li hexagram has emptiness in the center containing yin; if the taste is not bitter but sweet, it is because fire contains earth). It drains pathogenic heat from the Heart channel (the principal herb for the blood aspect of the Heart channel), anchors the heart, clears the liver, brightens the eyes, induces sweating (sweat is the fluid of the heart), calms fright, dispels wind, and wards off evil spirits (Hu Yu, a junior minister, suffered from nightmares. He met Investigator Hu Yongzhi, who said: "I used to suffer from this. A Daoist taught me to wear Ling Sha [spiritual cinnabar] and it was effective." So he untied the crimson pouch in his hair and gave it to him; that night, no more dreams). It detoxifies (suitable for fetal toxins and smallpox toxins), stops thirst, and calms the fetus (Bo Jiu Fang records: Boil 1 liang, grind fine, take with wine, can expel a dead fetus. Li Shizhen said: Combined with Yuan Zhi [Polygalae Radix], Long Gu [Fossilized Bones], etc., it nourishes Heart qi; combined with Dan Shen [Salviae Miltiorrhizae Radix], Dang Gui [Angelicae Sinensis Radix], etc., it nourishes Heart blood; combined with Di Huang [Rehmanniae Radix], Gou Qi Zi [Lycii Fructus], etc., it nourishes the Kidney; combined with Hou Po [Magnoliae Officinalis Cortex], Chuan Jiao [Zanthoxyli Pericarpium], etc., it nourishes the Spleen; combined with Nan Xing [Arisaematis Rhizoma], Chuan Wu [Aconiti Radix], etc., it dispels wind. Excessive intake causes dementia). Cinnabar produced in Chenzhou, bright as arrowheads, is superior (named Jian Zhu Sha [Arrowhead Cinnabar]). Grind finely and process three times using the water levigation method (raw use is non-toxic; calcination makes it toxic; ingestion often causes death). It is incompatible with Magnetite (Ci Shi). It fears salt water. Avoid all blood products (Zheng Kangcheng annotated Zhou Li, listing Cinnabar, Realgar, Melanterite, Alum, and Magnetite as the Five Poisons, which ancients used to attack ulcers).
[Mercury (Shui Yin)]
Heavy in nature, externally used to kill parasites.
Pungent and cold, classified as Yin poison. Its function is specifically to kill parasites. Treats scabies, tinea, lice, and nits (nature is slippery and heavy, and penetrates flesh. Do not use on head sores, lest it enter the meridians and cause stiffness and spasm of sinews and bones), detoxifies gold, silver, copper, and tin (can kill metals of the five elements), induces abortion, and sterilizes. It is obtained by roasting Cinnabar. It fears Magnetite and Arsenic Trioxide (Pi Shuang). It coagulates when meeting Lead, and binds when meeting Sulfur; it crumbles when ground with jujube pulp and saliva. Scattered material on the ground can be collected using Sichuan pepper and tea powder.