〔害〕性寒凉，久用亦能寒中。
〔利〕甘寒入心经，祛风痰、解风热、镇心肝、安五脏、泻热豁痰、利窍养心。治大人
中风
不语，小儿客忤惊痫。其气味与竹沥同功而性稍和缓，无寒滑之患。
〔修治〕生南海镛竹中，此是竹内所生，如黄土着竹成片，片如竹节者真。此竹极大，
又
名天竹，津气结成，其内有黄。本草作天竺者非。采无时。
一名铅丹
〔害〕性味沉阴能损阳，铅粉主治略同。内服虽能消疳、逐积、杀虫，然其性冷善走，
如脾
胃虚弱者，不宜用，妊妇亦忌。
〔利〕咸寒，镇心安魂，堕痰、消积、杀虫，治惊疳、疟痢，外用解热拔毒，止痛生肌
长肉
。凡使燥湿、坠痰、解热，但宜外用。
〔修治〕黑铅加硝、黄、盐，矾炼成。凡用水漂净炒紫色，出火毒。
〔害〕苦寒之极，不利脾胃，凡疳症、脾弱、目病、血虚者，不宜多服。
〔利〕甘苦凉，清心肾之火，疗风痫惊悸，骨蒸痰热疮毒，锉屑煎服，气和味平，于藏
府无
逆。象肉壅肿，以刀刺之，半日即合。治金疮不合者，用其皮灰亦可。熬膏入散，为合金疮
之要药，长肌肉之神丹。诸铁及杂物入肉，刮牙屑和水敷之立出，诸物刺咽，磨水服之亦出
。
〔修治〕出西番，象每脱牙，自埋藏之，昆仑诸国人以木牙潜易取焉。
[Tianzhu Huang (Calculus Bambusae)]
[Harm] The nature is cold and cool; prolonged use can also damage the middle jiao (Middle Burner) yang.
[Efficacy] Sweet and cold, enters the Heart Meridian. It dispels wind-phlegm, resolves wind-heat, calms the Heart and Liver, stabilizes the Five Viscera, drains heat, expels phlegm, opens orifices, and nourishes the Heart. It treats adults with stroke-induced aphasia (inability to speak), and children with fright epilepsy or convulsions due to external pathogens. Its aroma and efficacy are similar to Zhuli (Bamboo Sap) but its nature is slightly milder, without the harm of being cold and slippery.
[Preparation] Grows in Yong bamboo from the South Sea. This substance forms inside the bamboo, resembling yellow earth adhering to the bamboo in sheets, with sheet-like structures resembling bamboo nodes being authentic. This bamboo is extremely large, also known as Tianzhu. It is formed by the condensation of sap and qi, containing a yellow hue. Writing it as "Tianzhu" in materia medica texts is incorrect. There is no fixed time for harvesting.
[Huang Dan (Lead Tetroxide)] (Also known as Qiandan)
[Harm] The nature and flavor are heavy and yin, capable of damaging yang. The therapeutic indications for Qianfen (Lead Carbonate) are roughly the same. Although internal administration can eliminate infantile malnutrition (Gan syndrome), drive out accumulation, and kill parasites, its nature is cold and agile/moving. Therefore, it should not be used by those with Spleen and Stomach deficiency, and pregnant women should also avoid it.
[Efficacy] Salty and cold. It calms the Heart and anchors the soul, drops phlegm, eliminates accumulation, and kills parasites. It treats fright-Gan syndrome, malaria, and dysentery. Externally applied, it resolves heat, draws out toxins, relieves pain, generates flesh, and promotes tissue growth. For uses involving drying dampness, dropping phlegm, and resolving heat, only external application is suitable.
[Preparation] Made by calcining black lead with saltpeter, realgar, salt, and alums. When preparing for use, wash it clean with water, stir-fry until purple, to remove fire toxicity.
[Xiangya (Elephant Ivory)]
[Harm] Extremely bitter and cold, detrimental to the Spleen and Stomach. Those suffering from Gan syndrome, Spleen weakness, eye diseases, or blood deficiency should not take it in large amounts.
[Efficacy] Sweet, bitter, and cool. It clears fire from the Heart and Kidney, treats wind-epilepsy, palpitations due to fright, bone-steaming heat, phlegm-heat sores and toxins. Shaved into powder and decocted for oral intake, its qi is mild and flavor balanced, causing no adverse effects on the Zang-Fu organs. If elephant meat becomes swollen, pricking it with a knife allows healing within half a day. To treat metal wounds that fail to heal, the ash of ivory skin can be used. Boiled into an ointment and added to powders, it is a crucial medicine for treating metal trauma, revered as a divine elixir for generating muscle. If iron or other foreign objects penetrate the flesh, scraping ivory shavings and applying them with water will cause the objects to emerge immediately. If various objects pierce the throat, grinding ivory into water and drinking it can also expel them.
[Preparation] Originates from Western Regions (Xifan). Elephants bury their shed teeth themselves. People from Kunlun regions secretly replace them with wooden teeth to obtain the ivory.