（宋嘉 ）
【气味】苦，大温，无毒。
【主治】主元脏虚冷气。得附子、石硫黄，主肾虚冷，腹胁胀满，面色青黑。得 香子、
桃核仁，主膀胱气甚效。
【核】曰∶胡卢巴，一名肾曹都护。生海南诸番，今广州、黔州俱有，不及舶上者佳。
春生苗，夏结实，秋采荚。淘净，酒浸，晒干，蒸熟，炒过用。
【 】曰∶胡者敛互；卢者火器；巴者曲折三迥，阆白水流也。言能敛互水火两肾之元
阳，盖以功力为名矣。故主元脏虚冷，命门火衰，不能敛互归元者，对待治之。益右肾，即
所以暖丹田也，若肾虚冷，面青黧黑，不唯火衰，更属卒灭，必协附子、石硫黄，阳毒并行，
乃克
（具金匮济生以为体，必藉臣使之佐以为用，亦可并行，亦堪独往。）
（宋嘉 ）
【气味】甘寒，无毒。
【主治】主通利小肠。得卮子、马牙硝、硼砂，疗伤寒热狂。或丸或散。
【核】曰∶出黔中、江浙、湖湘、川陕皆有，生山林下。茎细如线，引竹而上，高尺许。
叶如园荽，花细而薄，面背俱青，皱纹紧簇，纹中有沙，状似蒲黄，不作花实，根细坚强。
沙及茎叶，皆入药用。七月采其全料，日中曝之小干，用纸承衬，以杖击之，有沙落纸，且
暴且击，沙尽为度。摘叶捣汁，煮砂缩汞。
先人云∶似金而体轻，似沙而质滑。草气之生沙，犹水体之成冰，合入足少阴肾，足太
阳膀胱，主溺沙石者隙当。
【 】曰∶天池以纳百川者海，止而不盈，尾闾泄之，盖言量也。金者色，沙者象，形
似蒲黄。蒲黄四布花上，黄金经久不变，金沙四布叶下，垂枝布叶，下曲如钩，若夏火吐英
之荣极时也。第草木绽萼吐英，黄布花心，独蒲布花上，金沙布叶下者，正所以表专精之在
黄，别百花之随显随灭尔。宜入心之府，小肠经药也。小肠者，泌糟粕传大肠，泌水道输膀
胱，止而不盈，决渎以为量也。
（栀子六出之冰花，对待热恼为清凉。硼砂蓬转如轮，枢机迅捷。牙硝缘水火以为性，
可从之以水逆之以火，亦可逆之以水，从之以火，所谓奇之不去则偶之，偶之不去，反佐以
取之。）
[Hulu Ba]
[Flavor and Properties] Bitter, greatly warm, non-toxic.
[Indications] Primarily treats deficiency-cold qi of the Yuan Zang (Yuan Zang refers to the Kidney, the root of congenital constitution). When combined with Fuzi (Prepared Aconite Root) and Shiliuhuang (Stalagmite/Sulfur), it treats Kidney deficiency-cold, abdominal and hypochondriac distension/fullness, and a bluish-black complexion. When combined with Xiangzi (Fennel Fruit) and Taoheren (Peach Kernel), it is highly effective for treating Qi stagnation in the Bladder.
[Verification] It is said: Hulu Ba, also known as "Shen Cao Du Hu" (Governor of the Kidney Department). It grows in Hainan and various foreign lands; currently, it is also produced in Guangzhou and Qianzhou, but those imported by sea are superior. Sprouts emerge in spring, fruits set in summer, and pods are harvested in autumn. After thorough washing, soak in wine, sun-dry, steam until cooked, stir-fry, and then use.
[Elucidation] It is said: "Hu" means to converge and interact; "Lu" means fire vessel; "Ba" means twisting and turning back, like water flowing in an open space. This implies its ability to converge and interact with the Yuan Yang (Primordial Yang) in both kidneys, likely named after its efficacy. Therefore, it treats deficiency-cold of the Yuan Zang, decline of Mingmen Fire (Fire of the Gate of Life), and the inability to converge and return to the origin, serving as a counter-treatment. Tonifying the right kidney is essentially warming the Dantian (Elixir Field). In cases of Kidney deficiency-cold with a dark, sallow, or blackish complexion, this indicates not only fire decline but also sudden extinguishment of Yang. It is necessary to combine with Fuzi and Shiliuhuang, allowing the Yang-toxic heat to act in concert, to achieve cure. (Referencing *Jin Gui Yao Lue* and *Ji Sheng Fang*, using them as the foundation, one must rely on ministerial and envoy herbs to facilitate function; they can be used together or alone.)
[Ha Jin Sha]
[Flavor and Properties] Sweet, cold, non-toxic.
[Indications] Primarily promotes free flow and unblocking of the Small Intestine. When combined with Zhizi (Gardenia Fruit), Mayaxiao (Sodium Nitrate), and Pengsha (Borax), it treats mania caused by heat in Shanghan (Cold Damage) syndrome. It can be prepared as pills or powders.
[Verification] It is said: It is found in Qianzhong, Jiangzhe, Huxiang, Sichuan, and Shaanxi, growing beneath forests. The stem is thin as a thread, climbing bamboo, reaching about one chi in height. Leaves resemble coriander; flowers are fine and thin, green on both sides, with tight wrinkles containing sand within the veins, resembling Puhuang (Typha Pollen). It does not produce flowers or seeds; roots are slender and tough. Both the sand and stems/leaves are used medicinally. Harvest the whole plant in July, dry partially in the sun, place on paper, and beat with a stick so that sand falls onto the paper. Continue drying and beating until all sand is extracted. Crush leaves to extract juice, used to boil sand and condense mercury (metaphorically describing its precipitating nature).
My predecessor said: It resembles gold but is light in texture; it resembles sand but is smooth in quality. The generation of sand from grassy qi is like water forming ice. It enters the Foot-Shaoyin Kidney Meridian and Foot-Taiyang Bladder Meridian, effectively treating symptoms of sand and stones in urine.
[Elucidation] It is said: The Tianchi (Heavenly Pool) accepts hundreds of rivers to form the sea, stopping without overflowing, while the Weilu (Tail Gate) drains it; this describes capacity. "Jin" (Gold) refers to color; "Sha" (Sand) refers to shape, resembling Puhuang. Puhuang spreads over flowers; gold remains unchanged over time; Ha Jin Sha spreads under leaves. Drooping branches and spreading leaves curve downward like hooks, resembling the peak prosperity when summer fire spits out blossoms. However, while most plants spread yellow at the flower center, Puhuang spreads on flowers, and Ha Jin Sha spreads under leaves; this precisely demonstrates that essence concentrates in yellow, distinguishing it from the transient appearance and disappearance of other flowers. It is suitable for entering the Fu organ of the Heart, specifically the Small Intestine Meridian. The Small Intestine separates pure from turbid, transmitting dregs to the Large Intestine, and channels water pathways to the Bladder, stopping without overflowing, regulating drainage as its capacity.
(Zhizi blooms like six-petaled ice flowers, providing cooling relief against heat-induced agitation. Pengsha rotates like a wheel, with rapid pivot movement. Yaxiao derives its nature from water and fire; it can follow water to counteract fire, or reverse water to counteract fire, following the principle: if the singular formula fails, use the paired formula; if the paired formula fails, use counter-assistance to obtain the effect.)