〔 曰〕凡用以面裹煨熟，磨去粗皮，烂捣，再乳细如面，方堪入药。〔 曰〕每五两
用盐半分，同东流水入瓷器内煮一伏时，捣末研粉。再用五花皮、地榆、阿胶各十两，以东
流水
今方
〔震亨曰〕用蛤蜊烧 成粉，不入煎剂。〔时珍曰〕按吴球云∶凡用蛤粉，取紫口蛤蜊
壳，炭火 成，以熟栝蒌连子同捣，和成团，风干用，最妙。
〔日华曰〕凡用，取陈久者炭火 赤，米醋淬三度，出火毒，研粉。
〔 曰〕凡入药，烧过用。〔 曰〕凡使，勿用花虫壳，真相似，只是无效。贝子以蜜
醋相对浸之，蒸过取出，以清酒淘，研。
〔 曰〕珂，要冬采得色白腻者，并有白旋水文。勿令见火，即无用也。凡用以铜刀刮
末研细，重罗再研千下，不入妇人药也。
〔 曰〕凡使，用生茅香、皂角同煮半日，石臼捣筛用之。〔经验方曰〕凡使，用黄泥
同水
〔颂
出，
三复
硬，
香，
兖
〔时珍曰〕两旁曰牙，当中曰齿。入药烧用。《钱氏小儿方》云∶“用人牙烧存性。入麝
香
或青紫，或变黑，用人齿脱落者，不拘多少，瓦罐固济， 过出火毒，研末用。”
〔大明曰〕腊月截淡竹，去青皮，纳粪中，浸渗取汁，治天行热疾中毒，名粪清。〔弘
景曰〕以空罂塞口，纳粪中，积年得汁，甚黑而苦，名为黄龙汤，疗温病垂死者皆瘥。
【李时珍曰】凡是用于药物，用面粉包裹后煨熟，磨去粗糙的外皮，捣烂如泥，再研磨成细粉如同面粉一般，才适合入药。【某医家曰】每五两药材，使用盐半分，与东流水一同放入瓷器中煮一个时辰（约两小时），捣碎研成粉末。再用五花皮、地榆、阿胶各十两，以东流水……（原文此处有缺漏，今方）
【朱震亨曰】使用蛤蜊烧制成粉，不用于煎剂。【李时珍曰】据吴球记载：凡是使用蛤粉，取紫口蛤蜊壳，用炭火煅烧成粉，以成熟的栝蒌连同种子一起捣碎，和合成为团块，风干后使用，效果最好。
【日华子曰】凡是使用，取陈久的材料，用炭火煅烧至红透，用米醋淬炼三次，以去除火毒，然后研成粉末。
【某医家曰】凡是入药，需经过烧制后使用。【某医家曰】凡是要使用的，不要用花虫的壳，虽然看起来非常相似，只是没有药效。贝子用蜜和醋相对浸泡，蒸过后取出，用清酒淘洗，然后研磨。
【某医家曰】珂（贝壳类药材），要冬天采集颜色白腻的，并且带有白色旋纹水波状纹理的。不要让它们见火，否则就没有用了。凡是使用，用铜刀刮下末状物研细，过筛后再研磨千次，不用于妇女的药物。
【某医家曰】凡是要使用的，用生茅香、皂角同煮半天，在石臼中捣碎筛选后使用。【经验方曰】凡是要使用的，用黄泥……（原文此处有缺漏，颂出，三复硬，香，兖）
【李时珍曰】两旁称为牙，中间称为齿。入药时需烧制使用。《钱氏小儿方》说：“用人牙烧存性。加入麝香……或青紫色，或变黑，用人齿脱落者，不拘多少，用瓦罐密封固济，煅烧后去除火毒，研成粉末使用。”
【孟诜曰】腊月砍伐淡竹，去掉青皮，塞入粪中，浸泡渗透后取汁液，治疗天行热疾中毒，名为粪清。【陶弘景曰】用空瓶塞住瓶口，放入粪中，积累多年得到汁液，颜色很黑且味道苦，名为黄龙汤，治疗温病垂危的患者都能痊愈。
[Li Shizhen said] When used as medicine, wrap it in flour and roast until cooked. Grind off the rough skin, mash it thoroughly, and then grind it into a fine powder resembling flour before it is suitable for medicinal use. [An unnamed physician said] For every five liang of material, use half a fen of salt, place it together with flowing water from the east in a porcelain vessel, and boil for one fu shi (a traditional time unit, approx. 2 hours). Then crush and grind into powder. Further use ten liang each of Wuhua Pi (Bark of Five-Flower Tree), Diyu (Sanguisorbae Radix), and Ejiao (Donkey-hide Gelatin), with flowing water from the east... (original text has gaps, modern prescription)
[Zhu Zhenheng said] Use clam shells calcined into powder; do not use in decoctions. [Li Shizhen said] According to Wu Qiu: Whenever using Ge Fen (Clam Shell Powder), select clam shells with purple edges, calcine them over charcoal fire into powder, mash them together with mature Gua Lou (Trichosanthis Fructus) including seeds, form into dough balls, air-dry, and use. This method is most excellent.
[Ri Hua Zi said] Whenever using, select aged materials, calcine them over charcoal fire until red-hot, quench them three times with Mi Cu (Rice Vinegar) to eliminate "fire toxicity," and then grind into powder.
[An unnamed physician said] Whenever entering medicine, it must be calcined before use. [An unnamed physician said] When selecting, do not use shells of flower insects; although they look very similar, they are ineffective. Bei Zi (Concha Arcae) should be soaked relatively in honey and vinegar, steamed, taken out, rinsed with clear wine, and then ground.
[An unnamed physician said] Ke (shell-like medicinal materials) should be harvested in winter, selecting those that are white and greasy in texture, possessing white spiral water-wave patterns. Do not let them see fire, or they will lose efficacy. Whenever using, scrape off the powder with a copper knife, grind finely, sieve, and grind again a thousand times. It is not used in prescriptions for women.
[An unnamed physician said] When preparing, boil raw Mao Xiang (Acori Tatarinowii Rhizoma) and Zao Jiao (Gleditsiae Fructus) together for half a day, then pound and sieve in a stone mortar. [Experience Prescription said] When preparing, use yellow mud... (original text has gaps, Song Chu, San Fu Ying, Xiang, Yan)
[Li Shizhen said] The sides are called Ya (teeth/gums), and the middle is called Chi (teeth). For medicinal use, burn them. The *Qian Shi Xiao Er Fang* states: "Use human teeth calcined to retain their nature. Add She Xiang (Moschus)... whether blue-purple or turned black, use shed human teeth, regardless of quantity. Seal tightly in a clay jar, calcine to remove fire toxicity, grind into powder, and use."
[Meng Shen said] In the twelfth lunar month, cut Dan Zhu (Phyllostachys heterocycla var. pubescens), remove the green skin, insert into manure, soak until permeated, extract the juice. This treats epidemic heat diseases and poisoning, named Fen Qing (Manure Juice). [Tao Hongjing said] Use an empty bottle with its mouth plugged, insert into manure, accumulate for years to obtain juice. It is very dark and bitter, named Huang Long Tang (Yellow Dragon Decoction). It cures patients dying from warm diseases.