淮熟地黄（八两） 山茱萸肉 山药（各四两） 牡丹皮 白茯苓 泽泻（各三两） 肉
桂
附子（各一两）
肾间水火俱虚者，此方主之。
君子观象于坎，而知肾俱水火之道焉，故曰七节之旁，中有小心。小心，少火也。又曰
∶肾有两枚，左为肾，右为命门。命门，相火也，相火即少火耳。夫一阳居于二阴为坎，水
火并而为肾，此人生与天地相似也。今人入房盛而阳事愈举者，阴虚火动也。阳事先萎者，
命门火衰也。真水竭，则隆冬不寒。真火息，则盛夏不热，故人乐有药饵焉。是方也，熟地、
山
所以益命门相火。水火得其养，则二肾复其天矣。互考见小便不禁门。
杜仲（姜汁炒） 牛膝 陈皮（各二两） 黄柏（盐酒炒） 龟板（酥炙，各四两） 夏
加五味
子（一两，炒） 冬加干姜（五钱）
此亦滋肾阴之方也。
黄柏、龟板、杜仲、牛膝，皆濡润味浓物也，故能降而补阴。复用陈皮，假以疏滞。夏
加
黄柏 龟板（各四两） 杜仲 牛膝 陈皮（各二两） 夏加五味子（炒，一两） 冬
加干姜
（五钱） 人胞（一具，酒洗，蒸烂捣丸）
男女交合非时，天癸虚损者，此方主之。
此即前方补肾丸加人胞也。天癸者，男之精，女之血，先天得之以成形，后天得之以有
生者也，故曰天癸。补肾丸，前考已悉。人胞者，亦精血之所融结，乃无极之极未生之天也。
已生之后，天癸虚损，补以草木之药，非其类也。卒难责效。人胞名曰混沌皮，则亦天耳。
以先天之天。而补后天之天，所谓补以类也，故曰补天。
熟地黄（八两） 山茱萸肉 山药（各四两） 牡丹皮 白茯苓 泽泻（各三两） 肉桂 附子（各一两）
君子从坎卦的象数中观察，从而知晓肾脏兼具水与火的道理，所以说“第七节脊柱的旁边，藏着小心”。这里的“小心”，指的是少火（生理性的微弱阳气）。又说：“肾脏有两个，左边称为肾，右边称为命门。”命门，即是相火（寄居于命门的阳气），相火也就是少火。一个阳爻居于两个阴爻之间构成坎卦，水和火合并成为肾的功能，这与人生和天地自然相似。现在的人，如果房事过度而性功能反而亢进者，是阴虚导致虚火妄动；如果性功能提前衰退萎软者，是命门之火衰微。真阴枯竭，就像隆冬时节不寒冷一样（指阴阳失衡，寒热错杂或无根之火外浮）；真阳熄灭，就像盛夏时节不炎热一样（指阳气极度虚弱，无法温煦），所以人们乐于借助药物来调理。这个方剂中，熟地黄、山茱萸、山药等药物用来滋养肾阴，配合肉桂、附子以益助命门的相火。使水与火得到调养，那么双肾就能恢复其先天之本的状态。互相参考可查阅“小便不禁”章节。
杜仲（用姜汁炒制） 牛膝 陈皮（各二两） 黄柏（用盐酒炒制） 龟板（用酥油炙烤，各四两） 夏季加五味子（一两，炒制） 冬季加干姜（五钱）
这也是滋补肾阴的方剂。
黄柏、龟板、杜仲、牛膝，都是质地濡润、味道浓厚的药材，所以能够下行并补益阴液。又复用陈皮，借其作用来疏通气机滞涩。夏季加入五味子以收敛固涩，冬季加入干姜以温中散寒。
黄柏 龟板（各四两） 杜仲 牛膝 陈皮（各二两） 夏季加五味子（炒制，一两） 冬季加干姜（五钱） 人胞（即胎盘，一具，用酒清洗，蒸烂后捣碎制成丸药）
男女交合非时（指因房劳过度或非正常情况导致的性功能障碍），天癸（指促进生殖机能成熟的物质）虚损的病症，此方为主治方。
这就是前方“补肾丸”加入人胞（胎盘）而成。所谓天癸，是指男性的精液、女性的经血，先天时期依靠它来形成身体形态，后天时期依靠它来维持生命活动，所以称之为天癸。“补肾丸”在前面的考证中已经详细说明。人胞，也是精气与血液融合凝结而成的产物，它是无极之极、尚未出生的先天状态。出生之后，若天癸虚损，仅用草木类的药物治疗，并非同类相应，很难迅速取得疗效。人胞又名“混沌皮”，它本身就是天的体现。用先天的“天”（人胞）来补益后天的“天”（人体生殖功能），这叫做“同类相补”，所以称之为“补天”。
[Cui's Eight-Ingredient Pill / Kidney-Tonifying Pill / Heaven-Replenishing Pill]
Prepared Rehmanniae Radix (Shu Dihuang) [8 liang], Corni Fructus (Shanzhuyu Rou), Dioscoreae Rhizoma (Shanyao) [4 liang each], Moutan Cortex (Mudanpi), Poria (Baifuling), Alisma Rhizoma (Zexie) [3 liang each], Cinnamon Twig (Rougui), Aconiti Lateralis Radix Praeparata (Fuzi) [1 liang each].
For conditions where both the Water and Fire within the Kidney are deficient, this formula is indicated.
The gentleman observes the image of Kan (the trigram for Water), thereby understanding that the Kidneys encompass both Water and Fire; thus it is said, "Beside the seventh vertebra, there lies the 'Small Heart'." The "Small Heart" refers to Shao Huo (Ministerial Fire/Physiological Mild Yang). It is also stated: "There are two Kidneys; the left is the Kidney, and the right is the Mingmen (Gate of Life)." The Mingmen is Xiang Huo (Ministerial Fire), which is essentially Shao Huo. One Yang line situated between two Yin lines forms the Kan trigram; Water and Fire combine to constitute the Kidney function, mirroring the similarity between human life and Heaven and Earth. Currently, if a person engages in excessive sexual activity yet experiences heightened sexual arousal, it is due to Yin deficiency causing hyperactive fire. If sexual function declines prematurely or becomes flaccid, it is due to the decline of Mingmen Fire. When True Water (True Yin) is exhausted, it resembles mid-winter lacking coldness (indicating imbalance); when True Fire (True Yang) extinguishes, it resembles midsummer lacking heat (indicating extreme Yang deficiency and lack of warmth); hence, people rely on medicinal herbs for regulation. In this formula, Prepared Rehmanniae Radix, Corni Fructus, and Dioscoreae Rhizoma nourish Kidney Yin, while Cinnamon Twig and Aconiti Lateralis Radix Praeparata assist the Ministerial Fire of the Mingmen. By nurturing both Water and Fire, the two Kidneys can restore their innate foundation. For related discussions, refer to the section on "Incontinence of Urine."
Eucommiae Cortex (Duzhong, stir-fried with ginger juice), Achyranthis Bidentatae Radix (Niuxi), Citri Reticulatae Pericarpium (Chenpi) [2 liang each], Phellodendri Cortex (Huangbai, stir-fried with salted wine), Testudinis et Chelonis Carapax et Plastrum (Guiban, roasted with rendered fat) [4 liang each]. Add Schisandrae Fructus (Wuweizi, stir-fried, 1 liang) in summer; add Zingiberis Rhizoma (Ganjiang, 5 qian) in winter.
This is also a formula for nourishing Kidney Yin.
Phellodendri Cortex, Testudinis et Chelonis Carapax et Plastrum, Eucommiae Cortex, and Achyranthis Bidentatae Radix are all moistening and rich substances, capable of descending and tonifying Yin. Citri Reticulatae Pericarpium is added to facilitate the dispersion of stagnation. In summer, Schisandrae Fructus is added for astringency; in winter, Zingiberis Rhizoma is added to warm the middle and dispel cold.
Phellodendri Cortex, Testudinis et Chelonis Carapax et Plastrum [4 liang each], Eucommiae Cortex, Achyranthis Bidentatae Radix, Citri Reticulatae Pericarpium [2 liang each]. Add Schisandrae Fructus (stir-fried, 1 liang) in summer; add Zingiberis Rhizoma (5 qian) in winter. Human Placenta (Renbao, one unit, washed with wine, steamed until soft, mashed into pills).
For conditions where non-timely sexual intercourse leads to deficiency and damage of Tiangui (Heavenly Water/Substances governing reproductive maturity), this formula is indicated.
This is the aforementioned Kidney-Tonifying Pill plus Human Placenta. Tiangui refers to semen in men and menstrual blood in women; it is relied upon in the pre-heaven stage to form the body structure and in the post-heaven stage to sustain life, hence the name Tiangui. The Kidney-Tonifying Pill has been detailed in previous examinations. The Human Placenta is also a fusion of essence and blood, representing the state before birth at the ultimate limit of Wuji (Non-Limit). After birth, if Tiangui is deficient, using herbal medicines (plant-based) is not congruent with its nature, making it difficult to achieve rapid efficacy. The Human Placenta is also called "Hundun Pi" (Skin of Chaos), embodying Heaven itself. Using the pre-heaven "Heaven" (Placenta) to tonify the post-heaven "Heaven" (human reproductive function) is known as "tonifying by similarity," hence it is called "Replenishing Heaven."