研炼钟乳法。
取韶州钟乳，无问浓薄，但令颜色明净光泽者，即堪入炼，唯黄赤两色不任用。欲炼亦
不限
沸。水减即添，若薄乳三日三夜即得，若粗肥浓管者，即七日七夜，候乳色变黄白即熟，如
疑生，更煎满十日最佳，煮讫，出金银碗。其铛内煮乳黄浊水弃之，勿令人服，服必损人咽
喉，伤人肝肺，令人头痛，兼复下利不止，其有犯者，食猪肉即愈，弃此黄水讫，更着清水，
准前更煮，经半日许即出之，其水色清不变即止，乳无毒矣，即于瓷盆钵中，用玉锤着水研
之。其钵及锤，须夹白练袋，笼口稍长作之。使锤得转，兼通上下，每日着水搅令调匀。勿
使
即是水尽，即更添水，常令如稀泔状，乳细者皆浮在上，粗者沉在下，复绕锤钵四边研之，
不及者即粗细不匀，为此每日须一开或二开，搅刮令匀，勿使着锤。即得匀熟，免有粗细，
研至四五日，状若乳汁，研揩视之，状如书中白鱼腻即成。自然光白，便以水洗之，不随水
落者即熟，若得水而落者即未成，更须研之，以不落为限，熟讫。澄取曝干，任将和药及和
酒空腹服佳。（千金翼同）
主五劳七伤，肺损气急，疗丈夫衰老阳气绝，手足冷，心中少气。髓虚腰疼，脚痹体烦
，口干不能食，服之安五脏，补肠胃，能息万病，下气消食，长肌和中方。（唐尚书用之）
钟乳（二两别研十日） 吴茱萸（二分） 石斛 菟丝子（各一两酒浸别捣）
上四味捣筛，蜜丸如梧子，空腹服七丸，日再，服讫，行数百步，温酒三合饮之，复行
二三百步，口胸内热，热如定。即食干饭豆酱，过一日食如常。须暖将息，不用闻见尸秽等
气。亦不用食粗臭陈恶食，初服七日内勿为事。过七日后任性，然亦不宜伤多，服过半剂觉
有效。即相续服三剂，终身更无所患，欲多阳事者，加雄蛾三十枚，若失精，加苁蓉花三两
佳。（千金翼同）
又钟乳丸法。
成炼钟乳（二十四分） 石斛 蛇床子（各五分） 人参 桂心（各四分） 干姜（三
分）
椒（三分汗去目并合口者）
上七味总四十八分，计一十二两，以炼白蜜和之，捣三千杵。药成，丸如梧子，空腹温
无灰清酒下二十五丸。日再服，如性饮，宜加饮少许，仍行三数百步，即乳气溜下，任食
，若能节量甚佳，古法云，令食干饭，得丸力速，如觉热冲上，进一两口饭，行步消息良久
，任食，若能节食甚佳，古法云，令食干饭豆酱。不得过多，不可依古法，终是节食，忌行
阳事最要。能依此法将慎，补益之功，不可具述终妙也。
【研炼钟乳法】
选取韶州出产的钟乳，不论其质地浓薄，只要颜色明净、有光泽的，就可以用来炼制，唯独黄色和赤色的不能使用。想要炼制时，也不限制必须用沸水。水量减少时就添加，如果质地薄的钟乳，煎煮三天三夜即可；如果质地粗肥、管状厚重的，则需煎煮七天七夜，等到钟乳的颜色变成黄白色就算成熟了。如果怀疑没有完全熟透，再煎满十天最好。煮好后，取出放入金银碗中。将锅内的煮乳黄浊水倒掉，不要让人服用，服用了必定损伤人的咽喉，伤害肝肺，导致头痛，并且伴有腹泻不止的症状。如果有误服者，吃猪肉就能痊愈。倒掉这黄水后，再加入清水，按照之前的方法再次煎煮，经过半天左右就取出来，直到水的颜色清澈不变为止，此时钟乳就没有毒性了。接着在瓷盆钵中，用玉锤加水研磨它。那个钵和锤子，需要用夹层的白练袋包裹，袋口稍微长一些制作。使锤子能够转动，同时上下贯通，每天加水搅拌使其均匀。不要让（钟乳）粘着（器物），如果水干了，就再加水，常保持像稀米汤一样的状态。细的钟乳都浮在上面，粗的沉在下面，还要围绕锤子和钵的四边研磨，如果不这样做，粗细就不均匀。因此每天需要打开或搅拌一两次，搅动刮平使其均匀，不要让钟乳粘着锤子。这样就能得到均匀成熟的粉末，避免有粗细不均的情况。研磨到四五天，形状像乳汁一样，研磨擦拭看它，形状像书中记载的“白鱼腻”（一种细腻的油脂状物质）就算成功了。自然光亮洁白，就用清水洗涤它，不随水流落的就算熟了，如果遇水就落下的就是没成，需要继续研磨，以不落为标准。煮熟后，澄清并晒干，可以用来配药，或者空腹用酒送服效果佳。（《千金翼方》中也有相同记载）
主治五劳七伤，肺部受损气急，治疗男子衰老阳气衰竭，手足冰冷，心中气短。骨髓空虚腰痛，脚部麻木身体烦热，口干不能进食。服用它能安定五脏，补益肠胃，能平息各种疾病，下气消食，增长肌肉，调和脾胃。（唐代尚书使用此法）
药材：钟乳（二两，单独研磨十天）、吴茱萸（二分）、石斛、菟丝子（各一两，用酒浸泡后单独捣碎）。
以上四味药捣碎过筛，用蜂蜜制成梧桐子大小的丸剂，空腹服用七丸，每天两次。服完后，行走几百步，喝温酒三合，再行走二三百步，口中胸部感到发热，热度稳定后。就吃干饭和豆酱，过一天后饮食恢复正常。需要注意保暖调养，不要闻到尸臭等气味。也不要吃粗糙、臭味、陈旧恶劣的食物。初服七日内不要从事劳作。过了七日后可以随意活动，但也不宜过度劳累。服用过半剂感觉有效后，就连续服用三剂，终身不再患病。如果想要增强性功能，加雄蛾三十枚；如果遗精，加肉苁蓉花三两效果更佳。（《千金翼方》中也有相同记载）
【又一种钟乳丸法】
已炼制的钟乳（二十四分）、石斛、蛇床子（各五分）、人参、桂心（各四分）、干姜（三分）、花椒（三分，去目及闭口者）。
以上七味药总共四十八分，合计十二两，用炼制的白蜜调和，捣三千杵。药制成后，做成梧桐子大小的丸剂，空腹时用无灰清酒送服二十五丸。每天两次服用，如平时饮酒习惯可适当多喝一点，服后仍要行走三五百步，此时钟乳之气会流注下行，可以随意进食，如果能节制饮食更好。古法说，让病人吃干饭，借助丸药之力加速消化，如果感觉热气上冲，吃一两口饭，慢慢走动观察情况，可以随意进食，如果能节制饮食更好。古法说，让病人吃干饭和豆酱。不得过量，不可完全依照古法，终究是要节制饮食，禁止行房事是最重要的。如果能依照此法谨慎调养，补益的功效，无法详尽描述，总之非常奇妙。
[Method for Grinding and Refining Stalactite (Zhongru)]
Select stalactite from Shaozhou, regardless of its density or thickness, provided that the color is bright, clean, and lustrous, which is suitable for refining. Only yellow and red colors are not to be used. When refining, boiling water is not strictly required. Add water as it evaporates. If the stalactite is thin, boil for three days and nights; if it is coarse, thick, and tubular, boil for seven days and nights until the color turns yellowish-white, indicating it is ripe. If there is doubt about whether it is fully cooked, boil for ten days for best results. After boiling, transfer it into a gold or silver bowl. Discard the yellow turbid water from the pot; do not let anyone consume it, as ingestion will damage the throat, harm the liver and lungs, cause headache, and lead to persistent diarrhea. Those who have ingested it can be cured by eating pork. After discarding this yellow water, add clear water and boil again according to the previous method. Remove after about half a day. Stop when the water remains clear and unchanged, indicating the stalactite is non-toxic. Then, grind it in a porcelain basin using a jade pestle with water. The basin and pestle should be wrapped in a double-layered white silk bag with a slightly long opening to allow the pestle to rotate freely and mix thoroughly. Add water daily and stir to ensure uniformity. Prevent the material from sticking. If water dries up, replenish it. Maintain a consistency like thin rice gruel. Fine particles float on top, while coarse ones sink at the bottom. Grind around the edges of the pestle and basin to ensure uniformity; otherwise, the texture will be uneven. Therefore, open and stir once or twice daily to scrape and mix evenly, preventing adhesion to the pestle. This yields a uniformly refined powder, avoiding coarse-fine disparity. Continue grinding for four to five days until the texture resembles milk. Check by rubbing: if it resembles the "white fish grease" described in texts, it is complete. It should naturally appear bright and white. Wash it with water; if it does not dissolve or fall off with the water, it is ripe. If it falls off upon contact with water, continue grinding until it no longer dissolves. After ripening, clarify and dry it. It can be used to compound medicines or taken orally with wine on an empty stomach for optimal effect. (Same record in *Qianjin Yifang*)
Indications: Five exhaustions and seven injuries, lung damage with shortness of breath, treatment for men suffering from aging and exhaustion of yang qi, cold hands and feet, and scanty qi in the heart. Marrow deficiency with lower back pain, numbness in legs, bodily restlessness, dry mouth, and inability to eat. Ingestion stabilizes the five zang organs, tonifies the spleen and stomach, cures myriad diseases, directs qi downward, aids digestion, promotes muscle growth, and harmonizes the middle jiao. (Used by Tang Dynasty Shangshu)
Ingredients: Zhongru (Stalactite) (2 liang, ground separately for 10 days), Wuzhuyu (Evodiae Fructus) (2 fen), Shihu (Dendrobii Caulis), Tusizi (Cuscutae Semen) (each 1 liang, soaked in wine and ground separately).
Grind the above four herbs into powder, mix with honey, and form pills the size of wu zi (cibotium seeds). Take 7 pills on an empty stomach, twice daily. After ingestion, walk several hundred steps, then drink 3 he of warm wine without ash. Walk another 200-300 steps until warmth is felt in the mouth and chest. Once the heat stabilizes, eat dry rice and bean sauce. Resume normal diet after one day. Maintain warmth and care; avoid odors of corpses or foul smells. Avoid rough, stale, or bad-tasting foods. Refrain from labor for the first seven days. After seven days, resume activities but avoid overexertion. If efficacy is felt after taking half a dose, continue for three full courses. One will be free from illness for life. To enhance sexual function, add 30 male moths (Xiong'e). For seminal emission, add 3 liang of Cistanche flower (Rongronghua) for better effect. (Same record in *Qianjin Yifang*)
[Another Method for Zhongru Pills]
Refined Zhongru (Stalactite) (24 fen), Shihu (Dendrobii Caulis), Shechuangzi (Cnidii Fructus) (each 5 fen), Renshen (Ginseng Radix), Guixin (Cinnamomi Ramulus) (each 4 fen), Ganjiang (Zingiberis Rhizoma) (3 fen), Jiaopei (Zanthoxyli Pericarpium) (3 fen, remove eyes and closed ones).
The above seven herbs total 48 fen, equivalent to 12 liang. Mix with refined white honey and pound 3,000 times. Form pills the size of wu zi. Take 25 pills on an empty stomach with clear wine without ash, twice daily. Drink according to one's usual alcohol tolerance, possibly adding a little more. Walk 300-500 steps afterward so that the qi of the stalactite flows downward. Food may be consumed freely, though moderation is preferred. Ancient methods suggest eating dry rice to accelerate the pill's action. If heat rushes upward, eat one or two mouthfuls of rice and walk slowly to observe. Food may be consumed freely, but moderation is ideal. Ancient texts recommend dry rice and bean sauce. Do not overeat. Do not strictly follow ancient methods; ultimately, dietary restraint is key. Abstinence from sexual activity is most important. If one adheres to this method with caution, the tonifying benefits are immeasurable and truly miraculous.