一名鹿角胶，鹿乃仙兽纯阳之物也。其治劳伤羸瘦。益肾添精、暖腰膝、养血脉、
强筋骨、助阳道之至药。其华在角，取角熬胶，味甘，气温，无毒。入足厥阴、少阴、
手少阴、厥阴经。《经》曰∶劳则喘且汗出、内外皆越，中气耗矣。故作劳之人，中气伤
经，四肢作病，多汗或吐血下血。皆肝心受病。此药味甘，气温，入二经而能补益中
气，则经伤和，四肢利，血自止，汗自敛也。折跌伤损，则血瘀而成病。甘温入血通
行，又兼补益，故折跌伤损自愈。妇人血闭无子，及崩中淋露，胎痛不安，腰痛羸瘦
者，皆血虚肝肾不足之候，温肝补肾益血，则诸症自退，胎自得所养也。血气生，真阳
足，故久服轻身延年耳。更治尿血、尿精，疮红肿毒，漏下赤白，妇人久服能令有子，
皆味浓补益之力也。
白胶，主伤中劳绝，腰痛羸瘦，补中益气，妇人血闭无子，止痛安胎，疗吐血下
血，崩中不止，四肢酸疼，多汗淋露，折跌伤损，久服轻身延年。
犀，亦神兽也。故其角之精者。名通天，夜视有光，能开木辟邪，禽兽见之，则
惊骇辟易。味苦、咸，大寒，入足阳明、手少阴经。阳明为水谷之海，无物不受，其口
鼻为阳明之窍，诸毒邪气多从口鼻而入，神灵苦寒之性，专入阳明，以除诸热百毒也。
邪热即去，则心经清明，所以狂言妄语，热毒痈肿，除烦止惊，镇肝明目，衄血吐下，
伤寒蓄血，发黄发斑，痘疮黑陷，皆取其入胃、入心，散邪清热，凉血解毒之功也。欲
作细末，先锯屑置入怀中，一宿，捣之，应手成粉。人为万物之灵，故能胜之。且阴寒
之质，得阳和而冰解矣。犀取尖，鹿取茸者，以其精气尽在是也。作器物者，多被蒸
者，不堪入药。
犀角，百毒皆除，能解烦热，伤寒温疫，一切痈肿，镇肝明目，安心定神。然至
寒至灵之品，入心凉血，入胃散邪则是矣。但以治血热痘症初起者非也，盖痘假火性之
呈形，若大寒则冰伏不出矣。有以为功能升散，恐未当也。丹溪云∶犀角属阳，性善走
散，比诸角为甚，痘疹后用以走散余毒，殊不知血虚燥热，有用之其祸立至。
主治（痘疹合参） 除心火，安心神，止烦乱，镇肝明目，解热毒，清血热，磨服
尤妙。丹溪谓属阳，能散痘后余毒。若血虚者忌用。然诸痛痒疮疡，皆属心火，在初用
之，不无冰伏在内之虞，在后之用，不无引毒入心之患，张每以羚羊角代之而神效。盖
能清肺肝，而非若犀角苦寒，直入心经凉血也。
按∶犀角，食百草之毒，故能解百毒。然大寒之性，胃必受伤，妊妇多服，能消胎气。
鹿角胶，又名白胶。鹿是仙兽，属于纯阳之物。它治疗劳损导致的身体消瘦虚弱。是补肾填精、温暖腰膝、滋养血脉、强壮筋骨、辅助阳气运行的极佳药物。它的精华集中在角上，取角熬制成胶，味道甘甜，性质温和，无毒。归入足厥阴肝经、足少阴肾经、手少阴心经和手厥阴心包经。《内经》说：过度劳累会导致气喘且出汗，体内的精气内外耗散，中气（脾胃之气）因此消耗。所以从事重体力劳动的人，中气受损，经络受伤，四肢出现病症，多汗或者吐血、便血。这都是肝心和心脏受病所致。此药味道甘甜，性质温和，进入这两条经脉并能补益中气，那么经络损伤得以调和，四肢活动自如，血液自然停止外溢，汗水自然收敛。骨折跌打损伤，会导致瘀血形成疾病。甘温之性入血分并通行，又兼有补益作用，所以骨折跌打损伤能自行痊愈。妇女经闭不孕，以及崩漏淋漓不尽，胎动不安，腰痛身体消瘦，都是血虚肝肾不足的征候，温养肝脏、补肾益血，那么各种症状自然消退，胎儿自然得到滋养。气血滋生，真阳充足，所以长期服用能使身体轻便、延年益寿。另外治疗尿血、尿精，疮疡红肿毒邪，赤白带下，妇女长期服用能让人受孕，这都是因为味道浓厚、补益力量强大的缘故。
白胶，主要治疗内伤劳损，腰痛身体消瘦，补益中气，妇女经闭不孕，止痛安胎，治疗吐血便血，崩漏不止，四肢酸痛，多汗淋漓，骨折跌打损伤，长期服用能身体轻便、延年益寿。
犀，也是神兽。所以它角的精华部分，名叫“通天”，夜间视物有光，能开启木门辟除邪气，禽兽见到它，就会惊骇躲避。味道苦、咸，性质大寒，归入足阳明胃经和手少阴心经。阳明经是水谷之海，没有东西不接受，它的口鼻是阳明经的窍道，各种毒邪之气多从口鼻而入，神灵（指犀角）具有苦寒的性质，专门进入阳明经，以清除各种热毒。邪热去除后，心经清明，所以狂言妄语、热毒痈肿、烦躁惊悸，都能被消除；它能镇肝明目，治疗鼻出血、吐血、便血，伤寒蓄血，发黄发斑，痘疮黑陷，都是取其进入胃、进入心，疏散邪气、清热、凉血解毒的功效。如果要制作成细粉，先锯下木屑放入怀中一晚，捣碎后，应手即成粉末。人是万物之灵，所以能制服它。而且阴寒的质地，得到阳气的调和就像冰融化一样。取犀角要取尖端，取鹿角要取茸角，因为它们的精气都集中在这里。制作器物用的，大多经过蒸煮，不堪入药。
犀角，能解除百毒，能缓解烦热，治疗伤寒温疫，一切痈肿，镇肝明目，安心定神。然而它是极寒极灵的药材，进入心经凉血，进入胃经散邪，这是对的。但如果用来治疗血热痘症初期就不对了，因为痘疹假借火性来呈现形态，如果用大寒之药，就会像冰伏一样导致痘出不出来。有人说它具有升散功能，恐怕不恰当。丹溪说：犀角属阳，性质善于走散，比其他的角更甚，痘疹后用来走散余毒，却不知道如果血虚燥热，使用它灾祸立刻到来。
主治（结合痘疹论述）：清除心火，安定心神，止住烦乱，镇肝明目，解热毒，清血热，磨服尤其好。丹溪认为它属阳，能散发痘后的余毒。如果是血虚者忌用。然而各种痛痒疮疡，都属于心火，在初期使用它，难免有冰伏在体内的担忧，后期使用它，难免有引毒入心的隐患，张景岳常用羚羊角代替而效果神奇。因为羚羊角能清肺肝，而不是像犀角那样苦寒，直入心经凉血。
Baijiao (Deer Antler Glue), also known as Lujiaojiao, is derived from the deer, a mythical beast belonging to pure Yang substances. It treats emaciation and weakness caused by consumptive injuries. It is an excellent medicine for tonifying the Kidney, replenishing essence, warming the waist and knees, nourishing the blood vessels, strengthening sinews and bones, and assisting the functioning of Yang Qi. Its essence concentrates in the horns; glue is made by boiling the horns. It has a sweet taste and warm nature, and is non-toxic. It enters the Foot Jueyin Liver Meridian, Foot Shaoyin Kidney Meridian, Hand Shaoyin Heart Meridian, and Hand Jueyin Pericardium Meridian. The *Classic* states: "Excessive labor leads to panting and sweating, with essence and Qi dissipating internally and externally, thereby depleting Middle Qi (Spleen/Stomach Qi)." Therefore, those engaged in heavy labor suffer damage to their Middle Qi and meridians, resulting in limb disorders, excessive sweating, hematemesis (vomiting blood), or hematochezia (blood in stool). These are all conditions where the Liver and Heart are affected. This medicine, being sweet and warm, enters these two meridians and can tonify Middle Qi; thus, meridian damage harmonizes, limbs move freely, bleeding stops naturally, and sweating ceases. Fractures and traumatic injuries cause blood stasis leading to disease. The sweet and warm nature enters the Blood level to promote circulation while simultaneously providing tonification, so fractures and traumatic injuries heal spontaneously. For women with amenorrhea and infertility, as well as metrorrhagia and leukorrhea, restless fetus, lower back pain, and emaciation, these are signs of Blood deficiency and insufficiency of the Liver and Kidney. Warming the Liver, tonifying the Kidney, and benefiting Blood will cause these symptoms to recede, allowing the fetus to be nourished properly. As Blood and Qi generate and True Yang becomes sufficient, long-term consumption leads to a light body and longevity. It additionally treats hematuria, spermatorrhea, red swelling and toxicity of sores, and chronic leukorrhea. Long-term use by women enables conception, all due to its rich flavor and powerful tonifying strength.
Baijiao primarily treats internal injury and consumptive exhaustion, lower back pain with emaciation, tonifies Middle Qi, treats female amenorrhea and infertility, relieves pain and calms the fetus, treats hematemesis and hematochezia, continuous metrorrhagia, soreness and pain in the four limbs, excessive sweating and discharge, fractures and traumatic injuries. Long-term use results in a light body and longevity.
The rhinoceros is also a divine beast. The finest part of its horn is named "Tongtian" (Reaching Heaven); it glows at night, can open wooden doors to dispel evil, and causes birds and beasts to flee in terror upon seeing it. It has a bitter and salty taste, and a great cold nature. It enters the Foot Yangming Stomach Meridian and the Hand Shaoyin Heart Meridian. The Yangming Meridian is the Sea of Water and Grain, accepting all things; its mouth and nose are the orifices of Yangming. Most toxic pathogens enter through the mouth and nose. The spiritual property of rhinoceros horn, being bitter and cold, specifically enters the Yangming Meridian to eliminate various heat toxins. Once the pathogenic heat is removed, the Heart Meridian becomes clear. Thus, it treats delirious speech, heat-toxic carbuncles, irritability, and fright; it settles the Liver, brightens the eyes, and treats epistaxis, hematemesis, and bloody stools. In cases of Cold Damage with blood retention, jaundice, macules, and blackened/indented smallpox lesions, it is used for its ability to enter the Stomach and Heart, disperse pathogens, clear heat, cool Blood, and detoxify. To make fine powder, sawdust should be placed in one's bosom overnight, then pounded; it turns to powder instantly. Humans, being the spirit of all things, can subdue it. Moreover, the yin-cold quality melts like ice when warmed by Yang harmony. When harvesting, the tip of the rhino horn and the velvet of the deer antler are taken because their essence and Qi concentrate there. Horns used for crafting are often steamed and are unsuitable for medicinal use.
Rhinoceros horn eliminates all toxins, relieves irritability and heat, treats Cold Damage and warm epidemics, all carbuncles and swellings, settles the Liver, brightens the eyes, and calms the Spirit. However, as an extremely cold and spiritual substance, entering the Heart to cool Blood and entering the Stomach to disperse pathogens is correct. But using it for early-stage blood-heat smallpox is incorrect, because smallpox relies on Fire properties to manifest; extreme cold would cause it to remain trapped and unemerged. Some claim it has ascending and dispersing functions, which is likely inaccurate. Danxi stated: "Rhinoceros horn belongs to Yang, and its nature is good at moving and dispersing, more so than other horns." It is used after smallpox to disperse residual toxins. However, one must not ignore that in cases of Blood deficiency with dry-heat, its use brings immediate disaster.
Main indications (integrated with smallpox discussion): Clears Heart Fire, calms the Spirit, stops irritability, settles the Liver, brightens the eyes, resolves heat toxins, clears Blood Heat. Grinding and taking it is particularly effective. Danxi claimed it belongs to Yang and can disperse residual toxins after smallpox. It is contraindicated for Blood deficiency. However, since all pain, itching, sores, and ulcers belong to Heart Fire, using it initially risks trapping cold inside, while using it later risks drawing toxins into the Heart. Zhang Jingyue often substitutes Lingyangjiao (Antelope Horn) with miraculous effect. This is because Lingyangjiao clears the Lung and Liver, unlike Rhinoceros horn which is bitter-cold and directly enters the Heart Meridian to cool Blood.
Note: Rhinoceros horn consumes the toxins of hundreds of herbs, thus it can resolve hundred toxins. However, its great cold nature inevitably damages Stomach Qi. Pregnant women consuming it in excess may abort the fetus.