味辛，性寒有毒，不载经络。主通大肠转胞，诸疮虫癣，小儿疳积，轻明可爱，烧火
上走者真。
按∶轻粉即水银所升者，本草言其无毒，误也！外科需为要药，但勿轻用服食。今见螈
方中多用之，必能损人肠胃，不可不戒。其值颇贵，市中多烧凝水石及石膏为粉以乱真，
须细辨之。
味苦辛，性温有毒。止入敷药杀虫，余无他用。
按∶银朱亦水银烧就，中其毒者。令人发胀至死，可弗慎耶！
味咸辛，性平有毒，不载经络。主皮肤斑点，五痔金疮，嗽呕吐痰，禁疟痢，镇心惊，
体重如金色者佳，水飞用。
按∶密陀僧一名没多僧，质极重，过服伤人脏。
雷公云∶凡使捣令细，于磁锅中安置了，用重纸袋盛柳木末于密陀僧锅中，次下东流水，
浸
味甘，生者微寒无毒，炼者大热有毒，入心经，主镇心安神，益气明目，通血脉，除
烦满，止消渴，疗百病，杀精祟鬼邪，祛疥疮癣虫。久服成仙，畏碱水，大如鸡卵，形似芙
蓉，破之若云母，光明照彻者佳。
按∶丹砂之色，属丙丁火，心脏之所由归也，质性沉滞，勿宜多用。青霞子云∶入石见
火，悉成灰烬，丹砂伏火，化为黄银，能重能轻，能神能灵，能黑能白，能暗能明。太清云∶
外
各本其原，考兹二说，则服食成仙之说信矣。自唐世太平日久，膏粱之家，弗得其理，惑于
方士，都致殒身，习俗成风，至今未已，斯民何辜，蒙此惨祸，其理渊奥。察之实难，吾愿
好事者慎之。
雷公云∶凡使宜须细认，取诸般尚有百等，不可一一论之。有妙硫砂，如拳许大，或重
一镒一块者，而面如镜，若遇阴气天雨，即镜面上有红浆汁出。有梅柏砂，如梅子许大，夜
有光生，照见一室，有白庭砂，如菩提子许大，上面有小星现。有神座砂，不经丹鳖，服之
则面白延年。其次有白金砂，澄水砂，阴成砂，辰锦砂，芙蓉砂，镜面砂，箭镞砂，曹未砂，
土砂，金星砂，平面砂，神水砂，不可一一细述之
凡修事朱砂，先于一净室内焚香斋沐，然后取砂以香水浴，拭干即碎捣之，后向钵中更
研，三伏时，即取一磁锅子放了砂子，用甘草，紫背天葵，五方草各锉之，着砂上下，以东
流水煮，亦三伏时，勿令水尽，关失时候，约去三分，次入青芝草，山须草半两，盖之，下
十斤火 ，从巳至子时方歇。候冷再研似粉。如要服则入熬蜜丸，如细麻子许大，空腹服一
丸。如要入药中用，则依此法。凡 自然炭火，五两朱砂，用甘草二两，紫背天葵一镒，五
方草自然汁一镒，同东流水煮过。
【轻粉】
味辛，性寒，有毒，未记载归经。主要治疗大肠气机阻滞导致的小便不通（转胞），各种疮疡、虫癣，以及小儿疳积。质地轻盈明亮者才是真品，燃烧时火焰向上窜升的才是正宗。
按语：轻粉是由水银升华制成的，本草书籍说它无毒，这是错误的！它是外科的重要药物，但不要轻易内服。现在看到很多方剂中大量使用它，必定会损伤人的肠胃，不可不警惕。它的价格相当昂贵，市场上多用烧过的凝水石和石膏磨成粉来冒充，必须仔细辨别。
【银朱】
味苦、辛，性温，有毒。仅用于外敷药以杀虫，没有其他用途。
按语：银朱也是由水银烧制而成，中毒的人会导致身体肿胀直至死亡，能不谨慎吗！
【密陀僧】
味咸、辛，性平，有毒，未记载归经。主要治疗皮肤斑点，五痔及金创出血，咳嗽呕吐痰涎，疟疾痢疾的禁治，镇惊安神。体重如金色者为佳，需用水飞法处理使用。
按语：密陀僧又名没多僧，质地极重，过量服用会伤害脏腑。
雷公云：凡是使用密陀僧，要先捣碎变细，放入磁锅中安置好，用厚纸袋盛装柳木屑放在密陀僧锅旁，再注入东流水，浸泡……
【丹砂】
味甘，生品微寒无毒，炼制品大热有毒，入心经。主要功效为镇心安神，益气明目，通血脉，除烦闷胀满，止消渴，治疗百病，驱杀精怪鬼邪，祛除疥疮癣虫。长期服用可成仙，畏碱水。大小如鸡蛋，形状像芙蓉花，破开后若云母般光明透彻的为佳品。
按语：丹砂的颜色属丙丁火，是心脏所归属之物，其性质沉滞，不宜多用。青霞子说：丹砂遇到石头中的火，全部变成灰烬；丹砂经过伏火处理，化为黄银，能重能轻，能神能灵，能黑能白，能暗能明。太清说：追溯各版本的源头，考证这两种说法，那么服用丹药成仙的说法确实可信了。自从唐代太平日久，富贵人家不懂其中道理，被方士迷惑，都导致丧命，习俗形成风气，至今未停，百姓何辜，遭受此惨祸，其中的道理深奥难测，考察起来确实困难，我希望好事者对此要谨慎。
雷公云：凡是使用丹砂必须仔细辨认，取用的种类还有上百种，不能一一论述。有妙硫砂，大小如拳头，或重达一镒的一块，表面如镜子，如果遇到阴雨天，镜面上会有红色浆汁流出。有梅柏砂，大小如梅子，夜间发光，照亮整个房间。有白庭砂，大小如菩提子，上面有小星显现。有神座砂，不经丹鳖（注：此处原文可能有误或指特定炮制/来源），服用后则面色红润延年。其次有白金砂，澄水砂，阴成砂，辰锦砂，芙蓉砂，镜面砂，箭镞砂，曹未砂，土砂，金星砂，平面砂，神水砂，不能一一详细叙述。
凡是修制朱砂，先在一间干净的室内焚香斋戒沐浴，然后取丹砂用香水清洗，擦干后捣碎，再放入钵中研磨。在三伏天时，取一个磁锅放入丹砂，用甘草、紫背天葵、五方草各切碎，铺在丹砂上下，用东流水煮，也是三伏天，不要让水烧干，错过火候，大约蒸发掉三分之一的水，接着加入青芝草、山须草半两，盖上盖子，下十斤柴火，从巳时到子时才停止。等冷却后再研磨成粉。如果要内服，则加入熬好的蜂蜜制成丸药，大小如细麻子，空腹服用一丸。如果要入药中使用，则依照这个方法。凡是自然炭火，五两朱砂，用甘草二两，紫背天葵一镒，五方草自然汁一镒，同东流水煮过。
[Qingfen (Calomel)]
Taste: Pungent. Nature: Cold, toxic. Meridian tropism: Not recorded. Indications: Mainly treats intestinal obstruction leading to urinary retention (Zhuanbao), various sores, insect-related skin diseases (Chongxuan), and pediatric malnutrition (Ganji). The substance that is light and bright is genuine; the one that burns with flames rising upward is authentic.
Note: Qingfen is produced by sublimation of mercury. Pharmacopoeias stating it is non-toxic are mistaken! It is a crucial drug for external surgery but should not be taken internally lightly. Currently, many prescriptions use it extensively, which will inevitably damage the intestines and stomach; caution is imperative. Its price is quite high. The market often substitutes it with powder made from calcined halite (Ningshuishi) and gypsum to deceive buyers; careful discrimination is required.
[Yinzhu (Cinnabar Substitute / Vermilion)]
Taste: Bitter, pungent. Nature: Warm, toxic. Usage: Only used in topical applications to kill parasites; no other uses.
Note: Yinzhu is also produced by burning mercury. Those who ingest it suffer from swelling leading to death. How can one not be cautious!
[Mituoseng (Litharge)]
Taste: Salty, pungent. Nature: Neutral, toxic. Meridian tropism: Not recorded. Indications: Mainly treats skin spots, five types of hemorrhoids and metallic wounds (Jinchuang), cough with vomiting of phlegm, malaria and dysentery, and calms fright and soothes the heart. The variety heavy as gold is preferred; it should be used after water-calcination (Shuifei).
Note: Mituoseng is also known as Moduoseng. Its texture is extremely heavy; excessive consumption damages the zang-organs.
Leigong says: When using Mituoseng, first crush it finely, place it in a porcelain pot, arrange a thick paper bag filled with willow wood chips around the pot containing Mituoseng, then add running water from the east, and soak...
[Dansha (Cinnabar)]
Taste: Sweet. Raw form: Slightly cold, non-toxic. Refined form: Greatly hot, toxic. Meridian tropism: Enters the Heart meridian. Indications: Mainly calms the heart and soothes the spirit (Anshen), benefits qi and improves vision, unblocks blood vessels, removes irritability and fullness, stops thirst (Xiaoke), treats hundred diseases, kills evil spirits and ghosts, dispels scabies and tinea. Long-term ingestion leads to immortality. Aversion to alkaline water. The best quality is egg-sized, resembling a hibiscus flower, breaking open like mica with clear brightness.
Note: The color of Dansha belongs to Bing-Ding Fire, which is the destination of the Heart organ. Its nature is heavy and stagnant, so it should not be used in large amounts. Qingxiazi said: "When Dansha encounters fire in stones, it turns entirely to ash; when Dansha undergoes 'Fu Huo' (concealing fire processing), it transforms into Yellow Silver, capable of being heavy or light, divine or spiritual, black or white, dark or bright." Taiqing said: "Tracing the origins of various editions and examining these two theories, the claim that taking elixirs leads to immortality seems credible." Since the long peace of the Tang Dynasty, wealthy families, lacking understanding, were misled by alchemists, resulting in death. This custom became prevalent and continues today. What fault do the people have to suffer such tragedy? The principles are profound and difficult to investigate. I hope those interested in this matter exercise caution.
Leigong says: When using Dansha, one must carefully identify it. There are still hundreds of varieties available, which cannot be discussed one by one. There is Miaoshusha, fist-sized or weighing one yi per piece, with a mirror-like surface; on rainy or yin days, red fluid appears on the surface. You Meibaisa, plum-sized, emitting light at night illuminating a room. You Baitingsha, bodhi-seed-sized, with small stars appearing on top. You Shenzuosa, without Danbie [note: text likely corrupted or specific term], ingestion results in fair complexion and longevity. Next are Baibaijinscha, Chengshuishasha, Yinchengsha, Chenjinsha, Furongscha, Jingmiansha, Jianzhusa, Caoweisha, Tusha, Jinxingsha, Pingmiansha, Shenshuisha, which cannot be detailed one by one.
Regarding the preparation of Cinnabar: First, burn incense and observe fasting and bathing in a clean room. Then take the cinnabar, bathe it in fragrant water, wipe dry, and crush it. Further grind it in a mortar. During the Three Fu periods (hottest days of summer), place the cinnabar in a porcelain pot. Chop equal parts of Glycyrrhizae Radix et Rhizoma (Gancao), Basella alba (Zibeitiankui), and Wufangcao, layering them above and below the cinnabar. Boil with eastern flowing water during the Three Fu periods. Do not let the water run out, missing the timing; evaporate about one-third of the water. Then add Banliang (approx. 15g) of Qingzhicao and Shanxucao. Cover and boil with ten jin of firewood from Si hour (9-11 AM) to Zi hour (11 PM-1 AM). After cooling, grind again into powder. If for internal use, mix with boiled honey to make pills the size of sesame seeds; take one pill on an empty stomach. If for inclusion in other medicines, follow this method. For natural charcoal fire processing: Five liang of Cinnabar, two liang of Gancao, one yi of Zibeitiankui, one yi of fresh juice of Wufangcao, all boiled together with eastern flowing water.