泻，杀虫，消症
辛寒。杀虫，破症积，治反胃，（祖台之志怪云∶昔有人与奴皆患心腹痛病，奴死，剖
之得一鳖，尚活。以诸药投口中，不死。有人乘白马观之，马溺坠鳖而鳖缩，遂以灌之，即
化成水。主乃服马溺而愈）。
泻，杀虫
辛寒。杀虫，治反胃噎膈（须热饮之。张文仲《备急方》曰∶昔患反胃，奉敕调治，竟
不能疗。一卫士云∶服驴屎极验。遂服二合，只吐一半，再服二合，食粥便定。宫中患反胃
者五六人，同服之俱瘥）。
平补而润
甘平。清肺养肝，滋肾益气（肺主气，肾纳气），和血补阴（肝主血，血属阴），除风化
痰，润燥定喘，利大、小肠。治虚劳咳嗽，肺痿吐脓，吐血衄血，血淋血痔，肠风下痢（伤
暑伏热成痢者，必用之。妊娠血痢尤宜），腰酸骨痛，血痛血枯，经水不调，崩带胎动（或
妊娠下血，酒煎服）。痈疽、肿毒及一切风病、泻者忌用（大抵补血与液，为肺、大肠要药。
寇宗 曰∶驴皮煎胶，取其发散皮肤之外。用乌者，取其属水以制热则生风之义，故又治风
也。陈自明曰∶补虚用牛皮胶，去风用驴皮胶。杨士瀛曰∶小儿惊风后，瞳人不正者，以阿
胶倍人参服，最良。阿胶育神，人参益气也。按∶阿井乃济水伏流，其性趋下，用搅浊水则
清。故治瘀浊及逆上之痰也）。用黑驴皮、阿井水煎成（苏颂曰∶《本经》阿胶亦用牛皮，见
二胶可通用。牛皮胶制作不精，故不堪用），以黑光带绿色、夏月不软者真。锉炒成珠，或
面炒、蛤粉炒（去痰）、蒲黄炒（止血），酒化、水化，童便和用。得火良。山药为使。畏大
黄。
泻下，杀虫，消除症积。
性味辛、寒。具有杀虫作用，能破除症积，治疗反胃。（祖台之在《志怪》中记载：从前有个人和奴仆都患有心腹疼痛的病，奴仆死后，剖开尸体发现有一只鳖，还活着。用各种药物投入它口中，它都不死。有人骑着白马去观看，马尿滴落在鳖身上，鳖缩了起来，于是就用马尿灌服它，鳖随即化成了水。主人随后服用马尿而痊愈）。
泻下，杀虫。
性味辛、寒。具有杀虫作用，治疗反胃噎膈（必须热饮。张文仲在《备急方》中说：从前患有反胃病，奉皇帝命令调治，最终未能治愈。一名卫士说：服用驴屎非常有效。于是服用两合，只吐出一半，再服用两合，吃粥后病情便稳定了。宫中患有反病的五六个人，一同服用后都痊愈了）。
平补且滋润。
性味甘、平。清肺养肝，滋肾益气（肺主气，肾纳气），和血补阴（肝主血，血属阴），祛除风邪化痰，润燥定喘，通利大、小肠。治疗虚劳咳嗽，肺痿吐脓，吐血衄血，血淋血痔，肠风下痢（因伤暑伏热导致痢疾的，必须使用此药。妊娠期间患血痢尤其适宜），腰酸骨痛，血痛血枯，月经不调，崩漏带下胎动（如果是妊娠下血，用酒煎服）。痈疽、肿毒以及一切风病、腹泻者忌用（大体上，补血与液，是肺、大肠的要药。寇宗奭说：驴皮煎胶，取其发散皮肤之外邪的意思。使用黑色的，是取它属水以制约热则生风的道理，所以又能治疗风病。陈自明说：补虚用牛皮胶，祛风用驴皮胶。杨士瀛说：小儿惊风后，瞳孔不正的，用阿胶加倍人参服用，效果最好。阿胶滋养神志，人参补益元气。按语：阿井是济水的伏流，其性质趋下，用它搅动浊水则变清。所以能治疗瘀浊及逆上的痰饮）。用黑驴皮、阿井水煎制成胶（苏颂说：《本经》中的阿胶也用牛皮，见两种胶可通用。牛皮胶制作不精细，所以不堪使用），以黑色光亮带绿色、夏季不软者为真品。锉碎炒成珠状，或用面炒、蛤粉炒（去痰）、蒲黄炒（止血），或用酒化开、用水化开，或与童便一起使用。得火则良。山药为引经药。畏大黄。
Purgative, insecticidal, and capable of resolving masses.
Acrid and cold in nature. It kills parasites, breaks up mass accumulations (zheng ji), and treats regurgitation (fan wei). (Zu Taizhi recorded in *Zhiguai*: Once, a man and his servant both suffered from heart and abdominal pain. After the servant died, an autopsy revealed a live turtle inside. Various medicines were administered into its mouth, but it did not die. A person riding a white horse came to observe; when horse urine dripped onto the turtle, the turtle shrank. The urine was then used to irrigate/give to the patient, and the turtle dissolved into water. The master subsequently took horse urine and recovered.)
Purgative and insecticidal.
Acrid and cold in nature. It kills parasites and treats regurgitation and dysphagia (must be taken hot). Zhang Wenzhong stated in *Beiji Fang*: "I once suffered from regurgitation and was treated by imperial decree, but could not be cured. A guard said that taking donkey dung is highly effective. I took two he, vomited only half, took another two he, and after eating porridge, the condition stabilized. Five or six people in the palace suffering from regurgitation took it together and all recovered."
Mildly tonifying and moistening.
Sweet and neutral in nature. It clears the Lung and nourishes the Liver, nourishes the Kidney and benefits Qi (The Lung governs Qi, the Kidney grasps Qi), harmonizes blood and nourishes Yin (The Liver stores blood, blood belongs to Yin), dispels wind and resolves phlegm, moistens dryness and calms asthma, and promotes urination through the Large and Small Intestines. It treats deficiency-type consumption cough, lung abscess with pus expectoration, hematemesis and epistaxis, bloody strangury and hemorrhoids, intestinal wind with dysentery (for dysentery caused by summerheat and latent heat, it must be used; especially suitable for bloody dysentery during pregnancy), soreness and weakness of the waist and bones, blood pain and blood exhaustion, irregular menstruation, metrorrhagia, leukorrhea, and fetal restlessness (if there is bleeding during pregnancy, decoct with wine). Contraindicated for carbuncles, sores, toxic swellings, all wind diseases, and diarrhea. (Generally, it supplements blood and fluids, serving as a key herb for the Lung and Large Intestine. Kou Zongshi said: Donkey skin gelatin is used for its ability to disperse pathogens on the skin surface. Black donkey skin is chosen because black corresponds to Water, which controls Heat that generates Wind, thus it also treats wind diseases. Chen Ziming said: For deficiency tonification, use ox hide gelatin; for dispelling wind, use donkey hide gelatin. Yang Shiying said: For children with convulsions where the pupils are misaligned afterward, using Ejiao with double the amount of Renshen is most effective. Ejiao nourishes the spirit, while Renshen benefits Qi. Note: Ajing is a subterranean flow of the Ji River; its nature tends downward. When used to stir turbid water, it clarifies it. Therefore, it treats blood stasis, turbidity, and rebellious phlegm.) It is prepared by decocting black donkey skin with water from Ajing (Su Song noted: *Ben Jing* also mentions using ox hide for Ejiao, seeing that the two gelatins can be used interchangeably. However, ox hide gelatin is often poorly processed and thus inferior). Authentic product is black, lustrous, slightly greenish, and does not soften in summer. It can be cut into pieces and fried until popping into beads, or fried with flour, clam shell powder (to resolve phlegm), or Puhuang (to stop bleeding). It can be melted in wine, melted in water, or used combined with child's urine. It works well when heated. Shanyao acts as a guiding herb. It is incompatible with Dahuang.