味甘酸，微温无毒，入肝肾二经。主通邪气，逐风痹，破症结，通九窍，除鼻塞，疗
耳聋，杀三虫，安五脏，壮元阳，固精髓，利小便。去梗用，蓼实为使，恶桔梗、防风、防
己。
按∶山茱萸大补精血，故入少阴厥阴。六味丸用之，取其补肾而不伤于热耳。若舍是而
别求热剂，以为淫欲助，犹弃贤良而搜佞幸也，愚乎哉？
雷公云∶凡使勿用雀儿苏，臭似山茱萸，只是核八棱，不入药。使山茱萸，须去内核，
每修事去核子一斤，取内皮用，只存成四两以来，缓火熬之，方用。能壮元气精秘，其核最
滑精。
味苦甘辛，性微寒无毒，入肝经。主散风寒，疗头风，除目痛，去翳膜坚齿牙，利
九窍，杀百虫。酒浸一宿蒸用，恶石膏、乌头。
按∶经曰；东方青色，入通于肝，开窍于目。又曰∶风生木，木生酸。酸生肝，荆实入
肝，故专主散风，以疗目疾。《主治秘诀》云∶其味苦甘，为阳中之阴，能凉诸经之血热。
味辛甘，性温无毒，入肾经。主阴下湿痒，小便余沥，强志，壮筋骨，滋肾止腰痛。
去粗皮，酥蜜炙去丝用，恶蛇蜕、玄参。
按∶杜仲降而属阳，宜职肾家之证。然精血燥者，不宜多用。
雷公云∶凡使先须削去粗皮，用酥蜜和作一两炙之，以尽为度。炙干了，细锉用，凡修
事一斤，酥一两，蜜三两，二味相和合处用也。
山茱萸：味甘、酸，性微温，无毒，归肝、肾二经。主治疏通邪气，驱除风痹，破除症结，通利九窍，消除鼻塞，治疗耳聋，杀灭三虫，安固五脏，壮补元阳，固摄精髓，通利小便。使用时需去除果梗，以蓼实为引药，忌与桔梗、防风、防己同用。
按语：山茱萸大补精血，因此入少阴、厥阴经。六味丸（Liuwei Wan, Six-Ingredient Pill with Rehmannia）中使用它，是取其补肾而不至于过于燥热的特性。如果舍弃山茱萸而另外寻求热性药剂，用来助长淫欲，这就像抛弃贤良之士而搜求奸佞宠幸之人一样，真是愚蠢啊？
雷公云：凡使用山茱萸时，不要选用雀儿苏（Que'er Su, a plant resembling Cornus officinalis），其气味类似山茱萸，只是核有八棱，不能入药。使用山茱萸时，必须去除内部硬核，每处理一斤山茱萸，去掉核后，只保留内果皮四两左右，用慢火熬制，然后才能使用。它能壮补元气、固秘精气，而其核最易导致滑精。
蔓荆子：味苦、甘、辛，性微寒，无毒，归肝经。主治疏散风寒，治疗头风，消除目痛，去除翳膜，坚固牙齿，通利九窍，杀灭百虫。用酒浸泡一夜后蒸制使用，忌与石膏、乌头同用。
按语：《内经》说：东方青色，内通于肝，开窍于目。又说：风生木，木生酸。酸生肝，蔓荆子入肝经，所以专门主治疏散风邪，以治疗眼疾。《主治秘诀》云：其味苦、甘，属于阳中之阴，能清凉各经的血热。
杜仲：味辛、甘，性温，无毒，归肾经。主治阴部潮湿瘙痒，小便淋漓不尽，坚定意志，强壮筋骨，滋补肾精，止腰痛。使用时需去除粗皮，用酥油和蜂蜜炙烤至无丝状物可用，忌与蛇蜕、玄参同用。
按语：杜仲性质沉降而属阳，适宜治疗肾脏相关的病症。然而对于精血枯燥者，不宜多用。
雷公云：凡使用杜仲，先须削去粗皮，用酥油和蜂蜜混合一两进行炙烤，以烤干为度。烤干后，细切使用。凡是修治一斤杜仲，需用酥油一两，蜂蜜三两，这两味药混合在一起使用。
Cornus Officinalis Fruit (Shanzhuyu): Sweet and sour in taste, slightly warm in nature, non-toxic. Enters the Liver and Kidney meridians. It primarily treats the unblocking of pathogenic factors, expelling wind-bi syndrome (painful obstruction caused by wind), breaking up masses and accumulations, opening the nine orifices, relieving nasal congestion, treating deafness, killing three types of parasites, stabilizing the five zang organs, strengthening primordial yang, consolidating essence and marrow, and promoting urination. The fruit stalks should be removed before use. Polygonum multiflorum fruit (Liaoshi) is used as an guiding herb. It is incompatible with Platycodon Root (Jiegeng), Saposhnikovia Root (Fangfeng), and Stephania Root (Fangji).
Commentary: Cornus Officinalis Fruit greatly tonifies essence and blood; therefore, it enters the Shaoyin and Jueyin meridians. It is used in Liuwei Wan (Six-Ingredient Pill with Rehmannia) for its ability to tonify the Kidney without causing excessive heat. To abandon this herb and seek other heating agents to aid sexual indulgence is like discarding virtuous officials and seeking out flatterers and favorites—how foolish!
Lei Gong stated: When using Cornus Officinalis Fruit, do not use Que'er Su (a plant resembling Cornus officinalis); although its odor resembles that of Cornus Officinalis Fruit, its seeds have eight ridges and are not suitable for medicinal use. When processing Cornus Officinalis Fruit, the inner hard seeds must be removed. For every jin (approx. 500g) of processed material, after removing the seeds, retain only about four liang (approx. 200g) of the inner pericarp. Simmer over slow fire before use. It can strengthen primordial qi and consolidate essence; however, the seeds tend to cause seminal emission due to their slippery nature.
Vitex Fruit (Manjingzi): Bitter, sweet, and acrid in taste, slightly cold in nature, non-toxic. Enters the Liver meridian. It primarily disperses wind-cold, treats cephalalgia due to wind (toufeng), relieves eye pain, removes corneal opacity (yi mo), strengthens teeth, opens the nine orifices, and kills various insects. Soak in wine overnight, then steam before use. It is incompatible with Gypsum Fibrosum (Shigao) and Aconitum Lateralis Radix Preparata (Wutou).
Commentary: The Classic states: "The color of the East is green, which internally connects to the Liver, and opens into the eyes." It also states: "Wind generates Wood; Wood generates Sour. Sour generates the Liver." Vitex Fruit enters the Liver meridian; thus, it specializes in dispersing wind to treat ocular diseases. *Mizhu Mijue* states: Its bitter and sweet tastes make it Yin within Yang, capable of cooling blood heat in various meridians.
Eucommia Bark (Duzhong): Acrid and sweet in taste, warm in nature, non-toxic. Enters the Kidney meridian. It primarily treats dampness and itching in the genital area, dribbling urine after voiding, strengthens willpower, fortifies sinews and bones, nourishes the Kidney, and relieves lower back pain. The coarse bark should be removed before use. It should be stir-fried with butter and honey until no fibrous strands remain. It is incompatible with Ophichthidis Cutis Corneum (Shetui) and Scrophulariae Radix (Xuanshen).
Commentary: Eucommia Bark has a descending nature and belongs to Yang; it is suitable for treating conditions related to the Kidney. However, it should not be used in large amounts by those with dry essence and blood.
Lei Gong stated: When processing Eucommia Bark, first scrape off the coarse bark. Mix one liang (approx. 50g) with butter and honey, then stir-fry until completely dried. Finely chop before use. For every jin (approx. 500g) of Eucommia Bark being processed, use one liang of butter and three liang of honey; these two ingredients are mixed together for application.