即牛皮胶
补虚
甘平。功与阿胶相近，亦可代用。同葱白煮粥，通大便（李时珍曰∶真阿胶难得，牛皮
胶亦可权用。其性味皆平补，宜于虚热之人。张仲景治泻痢，阿胶与黄胶、黄蜡并用。陈藏
器曰∶诸胶皆能疗风补虚止泄，驴皮主风为最。《经验方》云∶痈疽初起，酒顿黄明胶四两
，服尽，毒不内攻。《唐氏方》∶加穿山甲四片，烧存性用。昂谓∶此方若验，胜于服蜡矾
丸也）。
宣，去风，健骨
味辛微热。虎属金而制木，故啸则风生。追风健骨，定痛辟邪。治风痹拘挛疼痛，惊悸
颠痫，犬咬骨哽（为末，水服，犬咬敷患处）。以头骨、胫骨良（虎虽死，犹立不仆，其气
力皆在前胫。时珍曰∶凡辟邪疰，治惊痫，瘟疟、头风，当用头骨。治手足风，当用胫骨。
治腰脊风，当用脊骨，各从其类也）。
虎肚，治反胃（取生者，存滓秽勿洗，新瓦固 存性，为末。入平胃散一两，每服三钱
，效。昂按∶虎肚丸宜于食膈，若寒膈、气膈、血膈、痰膈，恐难见功）。
虎睛为散，竹沥下，治小儿惊痫夜啼。
泻心、胃大热
苦酸咸寒。凉心泻肝，清胃中大热，祛风利痰，辟邪解毒。治伤寒时疫，发黄发斑（伤
寒下早，热乘虚入胃则发斑；下迟，热留胃中亦发斑），吐血下血，蓄血谵狂，痘疮黑陷，
消痈化脓，定惊明目。妊妇忌之（能消胎气。时珍曰∶五脏六腑，皆禀气于胃。风邪热毒，
必先干之，饮食药物，必先入胃。角，犀之精华所聚，足阳明胃药也。故能入阳明，解一切
毒，疗一切血，及惊、狂、斑、痘之证。《抱朴子》云∶犀食百草之毒及棘，故能解毒。饮
食有毒，以角搅之，则生白沫）。乌而光润者胜，角尖尤胜（鹿取茸，犀取尖，其精气尽在
是也）。现成器物，多被蒸煮，不堪入药。入汤剂磨汁用，人丸散锉细。纸裹纳怀中，待热
捣之立碎（《归田录》云∶人气粉犀）。升麻为使。忌盐。
即牛皮胶
补虚。
味甘性平。功效与阿胶相近，也可以替代使用。（李时珍说：真正的阿胶难以得到，牛皮胶也可以暂时使用。它们的性质和味道都是平和的补益药，适合虚热体质的人。张仲景治疗泻痢，将阿胶与黄明胶、黄蜡一起使用。陈藏器说：各种胶都能治疗风病、补虚、止泄，驴皮胶主治风病最为显著。《经验方》记载：痈疽初起时，用酒顿服四两黄明胶，服完后，毒邪就不会内攻入里。《唐氏方》记载：加入四片穿山甲，烧至存性后使用。我认为：如果这个方子有效，胜过服用蜡矾丸。）
宣通，祛风，强健骨骼。
味辛，性微热。虎属金而克制木，所以咆哮时风随之而生。能追风健骨，定痛辟邪。治疗风痹引起的拘挛疼痛，惊悸癫痫，被狗咬伤或骨头卡喉（研成粉末，用水送服；被狗咬伤则敷于患处）。以头骨、胫骨为佳（虎即使死了，仍然站立不仆倒，其气力都集中在前胫。李时珍说：凡是辟除邪气疰病，治疗惊痫、瘟疟、头风，应当使用头骨。治疗手足风疾，应当使用胫骨。治疗腰脊风疾，应当使用脊骨，这是各取其所类同的部位）。
虎肚，治疗反胃（取新鲜的，保留其中的污秽物不要清洗，用新瓦密封煅烧至存性，研成粉末。加入一两平胃散，每次服用三钱，有效。我按语：虎肚丸适宜于食膈证，如果是寒膈、气膈、血膈、痰膈，恐怕难以见效）。
虎睛研成散剂，用竹沥送服，治疗小儿惊痫夜啼。
清泻心、胃大热。
味苦、酸、咸，性寒。凉心泻肝，清泻胃中大热，祛风利痰，辟邪解毒。治疗伤寒时疫，发黄发斑（伤寒过早攻下，热邪乘虚进入胃中就会发斑；攻下过迟，热邪留在胃中也会发斑），吐血下血，蓄血谵妄狂乱，痘疮黑陷，消痈化脓，定惊明目。孕妇忌用（能消除胎气。李时珍说：五脏六腑的气都禀受于胃。风邪热毒，必定先侵犯胃，饮食药物，也必定先入胃。犀角是犀牛的精华聚集之处，属于足阳明胃经的药。所以能入阳明经，解一切毒，疗治一切血证，以及惊、狂、斑、痘等病症。《抱朴子》说：犀牛吃百草中的毒物及棘刺，所以能解毒。食物中有毒，用犀角搅拌，就会产生白色泡沫）。黑色且光润的较好，角尖尤其好（鹿取鹿茸，犀取角尖，其精气都在这里）。现成的器物，大多经过蒸煮，不堪入药。入汤剂需磨汁使用，入丸散需锉细。用纸包裹放在怀中，待身体热气熏蒸后捣之立即碎裂（《归田录》说：人气能使粉犀变软）。升麻为引经药。忌盐。
Niu Pi Jiao (Cowhide Gelatin)
Tonifies deficiency.
Sweet and neutral in nature. Its efficacy is similar to Ejiao (Donkey-hide Gelatin) and can be used as a substitute. (Li Shizhen stated: Genuine Ejiao is hard to obtain, so Niu Pi Jiao can be used temporarily. Their properties and flavors are both mild tonics, suitable for individuals with deficiency-heat. Zhang Zhongjing treated dysentery by combining Ejiao with Huang Ming Jiao (Yellow Transparent Gelatin) and Huang La (Yellow Beeswax). Chen Cangqi said: All gelatins can treat wind disorders, tonify deficiency, and stop diarrhea; Donkey-hide gelatin is best for treating wind. The "Experience Formulas" record: For early-stage carbuncles and ulcers, consume four taels of Huang Ming Jiao dissolved in wine at once; after finishing the dose, the pathogenic toxin will not penetrate inward. The "Tang Family Formulas" record: Add four slices of Chuan Shan Jia (Pangolin Scales), calcined until carbonized but retaining its essence. I opine: If this formula proves effective, it surpasses taking La Fan Wan (Beeswax and Alum Pill)).
Promotes circulation, dispels wind, strengthens bones.
Pungent and slightly warm. Tiger belongs to Metal and controls Wood, hence roaring generates wind. It pursues wind, strengthens bones, alleviates pain, and expels evil pathogens. Treats wind-bi syndrome with spasms, pain, palpitations, epilepsy, dog bites, and bone obstructions in the throat (grind into powder, take with water; for dog bites, apply topically to the affected area). The skull and tibia are considered superior (Even after death, a tiger stands without falling, as its strength resides in the front tibiae. Li Shizhen noted: To expel evil influences and zhu diseases, and to treat epilepsy, plague malaria, and headache due to wind, use the skull. To treat wind affecting hands and feet, use the tibia. To treat wind affecting the waist and spine, use the spinal bone; each part corresponds to its respective category).
Hu Du (Tiger Stomach) treats regurgitation (Take fresh stomach, retain impurities without washing, seal in a new tile, calcine until carbonized, and grind into powder. Mix with one liang of Ping Wei San, take three qian per dose; effective. My note: Hu Du Wan is suitable for Shi Ge (Food Obstruction); however, for Han Ge (Cold Obstruction), Qi Ge (Qi Obstruction), Xue Ge (Blood Obstruction), or Tan Ge (Phlegm Obstruction), it may likely fail to show results).
Hu Jing (Tiger Eye) ground into powder, taken with Zhu Li (Bamboo Sap), treats pediatric epilepsy and night crying.
Clears intense heat from Heart and Stomach.
Bitter, sour, salty, and cold. Cools the Heart, drains Liver, clears intense heat in the Stomach, dispels wind, benefits phlegm, expels evil pathogens, and detoxifies. Treats Shanghan (Cold Damage) and seasonal epidemics causing jaundice and macules (If purgatives are used too early in Shanghan, heat enters the Stomach through deficiency causing macules; if used too late, heat remains in the Stomach also causing macules), hematemesis, hematochezia, blood stasis with delirium and mania, blackened and depressed acne/variola, resolves abscesses and promotes pus discharge, calms fright, and brightens eyes. Contraindicated in pregnancy (It can dissipate fetal qi. Li Shizhen said: The five zang and six fu organs all receive qi from the Stomach. Wind pathogens and heat toxins must first affect the Stomach; food and drugs also enter the Stomach first. Horn is the concentration of the rhinoceros's essence and acts on the Foot Yangming Stomach channel. Thus, it enters the Yangming channel, resolves all toxins, treats all blood disorders, and conditions such as fright, mania, macules, and variola. "Baopuzi" states: Rhinoceros eats toxic herbs and thorns, thus it can detoxify. If food is poisoned, stirring with horn produces white foam). Those that are black and lustrous are superior, especially the horn tip (Deer antlers and rhino horn tips contain the concentrated essence). Ready-made artifacts are often boiled or steamed and are unsuitable for medicinal use. For decoctions, grind to extract juice; for pills and powders, finely chop. Wrap in paper and keep in the bosom; body heat will make it brittle enough to crush easily ("Guitian Lu" notes: Human breath softens powdered rhino horn). Sheng Ma (Cimicifugae Rhizoma) serves as a guiding herb. Avoid salt.