即牛皮胶。补阴。
甘平补阴。治诸血证及痈疽，润燥，通大便。（时珍曰∶其性味平补、宜于虚热之人、
陈自
明曰∶补虚用牛皮胶、去风用驴皮胶、经验方云∶痈疽初起、酒顿黄明胶四两、服尽、毒不
内攻、唐氏方、加川山甲四片、烧存性、用此方颇验、殊胜于蜡矾丸。）制作须精。今市中
胶
硬、牛皮胶生姜汁化开、调南星末涂上、烘物熨之、便毒初起、
水胶溶化、涂之即散。）
平补而润。
甘平。清肺养肝。滋肾补阴。止血去瘀。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。）及一切风病。（藏器曰
、诸胶皆能疗风、补虚止泄、驴皮主风为最、宗 曰∶用驴皮煎胶、取其发散皮肤之外、用
乌者、取其属水、以制热则生风之义也。）痈疽肿毒。（士瀛曰∶小儿惊风后、瞳神不正者、
以阿胶倍人参服、最良、阿胶有神、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。大抵补血与液、为肺大肠要药。）胃弱作呕吐。脾虚食不
消者。均忌。用黑驴皮、阿井水煎成。以黑光带绿色。顿之易化。清而不腻并不臭者良。蛤
粉炒。（化痰。）蒲黄沙。（止血。）酒化。水化。童便和用。得火良。山药为使。畏大黄。（
月水不止、阿胶炒焦为末、酒服二钱、妊娠尿血、阿胶炒黄为末、食前、粥饮下二钱。）
就是牛皮胶。具有补阴的功效。
味甘、性平，能补阴。治疗各种出血证以及痈疽，滋润干燥，通畅大便。（李时珍说：它的性质和味道平和而补益，适宜于虚热体质的人；陈自明说：补虚使用牛皮胶，祛风使用驴皮胶；《经验方》记载：痈疽初起时，用酒顿服黄明胶四两，服完后，毒邪就不会内攻入里；唐氏的方子，加入烧存性的穿山甲四片，使用这个方子非常有效，远远胜过蜡矾丸。）制作必须精细。现在市面上卖的胶很硬，（如果是）牛皮胶，用生姜汁化开，调拌南星末涂在患处，烘烤物体后熨烫它，（可治）便毒初起；（如果是）水胶，溶化后涂抹，即可消散。
性质平和而滋润。
味甘、性平。清肺养肝，滋肾补阴，止血去瘀，除风化痰，润燥定喘，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。）以及一切风病。（孟诜说：各种胶都能治疗风病，补虚止泻，其中驴皮胶主治风病最为显著；张宗曰：使用驴皮煎胶，是取其发散皮肤之外邪的作用；使用黑色的驴皮，是取其属水的特性，以制约“热极生风”的道理。）痈疽肿毒。（士瀛说：小儿惊风之后，瞳神不正的，用阿胶加倍人参服用，效果最好，阿胶有神效，人参益气。按阿井是济水伏流，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。大抵来说，补血与津液，是肺和大肠的重要药物。）胃弱呕吐，脾虚食不消化的，均忌用。选用黑驴皮，用阿井水煎成。以黑色光亮带绿色，放置后容易融化，清澈而不油腻且不臭的为佳品。蛤粉炒。（用于化痰。）蒲黄沙。（用于止血。）酒化，水化，童便配合使用。得火加热良好。山药为使药。畏大黄。（月水不止，将阿胶炒焦研为末，酒送服二钱；妊娠尿血，将阿胶炒黄研为末，饭前用粥饮送服二钱。）
It is ox-hide gelatin. It tonifies Yin.
Sweet and neutral, it tonifies Yin. It treats various blood disorders and carbuncles/ulcers, moistens dryness, and unblocks the large intestine. (Li Shizhen said: Its nature and flavor are neutral and tonifying, suitable for individuals with deficiency-heat; Chen Zimingsaid: For tonifying deficiency, use ox-hide gelatin; for dispelling wind, use donkey-hide gelatin; *Experience Formulas* states: At the initial stage of carbuncles/ulcers, take four taels of Huangming Jiao dissolved in wine in one dose; after finishing the dose, the pathogenic toxin will not attack inwardly; Tang's formula adds four slices of Chuan Shan Jia (Pangolin Scales) calcined to retain their properties; this formula is quite effective, far surpassing La Fan Wan.) The production must be refined. The gelatin sold in markets today is hard. If it is ox-hide gelatin, dissolve it in ginger juice, mix with powder of Arisaema Cum Bile (Nan Xing), apply it to the affected area, heat an object, and moxa/iron it over the application; this treats the initial stage of perianal abscesses. If it is water gelatin, dissolve it and apply it, and it will dissipate immediately.
Neutral and moistening.
Sweet and neutral. Clears the Lung, nourishes the Liver, tonifies the Kidney and supplements Yin, stops bleeding and removes stasis, eliminates wind and transforms phlegm, moistens dryness and calms wheezing, benefits the small and large intestines. It treats consumptive cough due to deficiency-labor, pulmonary萎 (Lung Wei) with expectoration of pus, hematemesis, epistaxis, bloody strangury, hemorrhoids with blood, and intestinal wind with dysentery. (For dysentery caused by summerheat injury and latent heat, it must be used; it is especially suitable for bloody dysentery during pregnancy.) Lower back soreness and bone pain, blood pain and blood exhaustion, irregular menstruation, metrorrhagia, leukorrhea, and fetal restlessness. (If there is vaginal bleeding during pregnancy, decoct it with wine.) And all kinds of wind diseases. (Meng Shen said: All gelatins can treat wind diseases, tonify deficiency, and stop diarrhea; among them, donkey-hide gelatin is best for treating wind; Zong said: Using donkey-hide to make gelatin takes advantage of its ability to disperse pathogens from the skin surface; using black hide takes advantage of its association with Water to control the principle that "extreme heat generates wind.") Carbuncles, ulcers, swelling, and toxins. (Shi Ying said: After pediatric convulsions/wind-stroke, if the pupil shape is abnormal, taking Ejiao with double the amount of Renshen (Ginseng Root) is best; Ejiao has divine efficacy, and Renshen tonifies Qi. Note: A Well is a subterranean flow of the Ji River; its nature tends downward. When used to stir turbid water, it becomes clear. Therefore, it treats blood stasis/turbidity and rebellious phlegm. Generally speaking, as a key herb for the Lung and Large Intestine, it tonifies Blood and Body Fluids.) It is contraindicated for weak stomach causing vomiting and spleen deficiency causing indigestion. Use black donkey hide, decocted with water from A Well. The best quality is black, lustrous, slightly greenish, melts easily when stored, clear, non-greasy, and odorless. Stir-fried with clam shell powder. (To transform phlegm.) Coated with cattail pollen. (To stop bleeding.) Dissolved in wine. Dissolved in water. Used together with child's urine. Beneficial when heated. Yam serves as an assistant. It fears Rhubarb. (For unstoppable menstruation, charred Ejiao powdered and taken with wine, 2 qian; for hematuria during pregnancy, yellow-cooked Ejiao powdered, taken before meals with gruel drink, 2 qian.)