又名黄松节。治偏风。口面 斜。毒风筋挛不语。心神惊掣。虚而健忘。疗香港脚痹痛。
诸筋牵缩。风寒湿抟于筋骨。足筋挛痛难行。而茯神木一两。乳香一钱。瓦器中炒。研末。
木瓜酒下二钱。
〔修治〕 去木。先以茯神去皮。细锉。入箩筛内。置水盆中。荡筛。去筋膜。澄清。
取水底细末。晒干。复以人乳拌蒸三四次。或五六次更佳。每茯神一两。蒸作二两。茯苓用
于补剂。亦照此制。若用之导邪。止去其筋可也。不必取水底细末。
松树荣盛时。流脂入土。千岁后渝结所成。一种象物珀。内有物形。一种血珀。殷红如
血。一种赤松脂。形如琥珀。浊大而脆。纹理皆横。一种水珀。浅黄色。多皱纹。一种石珀
。深黄色。重如砂石。一种花珀。纹如马尾松。而黄白相间者次之。别有一种蜜蜡珀。臭之
作蜜蜡香。色黄白。即蜂蜜所化。一种枫脂珀。烧之不作松脂臭。即枫脂所化也。入药惟松
脂血珀最良。
气味甘平。纯阳色赤。阳中微阴。降也。入手少阴少阳。亦入足。厥阴经。专走血分。
主安五脏。定魂魄。化瘀血。疗心痛癫邪。清肺利小肠。明目磨翳。治产后血枕痛。止血生
肌。合金疮。琥珀属阳金。（丹溪）感土木之气而兼火化。从辛温药则行血破血。从淡渗药
则利窍行水。从金石镇坠药。则镇心安神。（仲淳）得乳香没药延胡干漆鳖甲为散。治产后
血晕有神。佐以人参益母草泽兰生地牛膝当归苏木。作汤送前药。治儿枕痛恶露不尽腹痛少
腹痛寒热等证。极效。同丹砂滑石竹叶麦冬木通。治心有热而小肠受之。因之小水。不利。
立效。同人爪珍珠玛瑙珊瑚。除目翳赤障。得丹砂犀角羚羊角天竺黄远志茯神。镇惊。主诸
痫。小儿转胞。琥珀一两为末。用水四升。葱白十茎。煮汁三升。入珀末二钱。温服。沙石
诸淋。三服效。
〔论〕 松秉真阳之性。不为阴寒变易。即入地至深。而真阳之气。犹能吸阴以成茯苓。
入地至久。而真阳之液。更能化阴以成琥珀。故琥珀非殷红血色。不大莹彻者。犹属阴未尽
化。不发真阳之光也。其入血分治营。而洁古东垣皆曰纯阳者。由阳能化营。化营还以达阳
也。阳化营。营还阳。则功能安五脏定魂魄矣。其或真阳虚而血不化。还结乎气以为心痛。
或血不化而痰聚心窍以为癫邪。此味皆其对治。夫心主血。而小肠行君火之气化。为血为水。
其原非二。琥珀既能致阳之精以化血。则利小肠及明目磨翳等治。皆当一以贯之。至于瘀血
之化。（如产后血枕痛）本非以破泄为功。故能化即能止。其效并着于止血生肌也。大抵琥
珀所治。惟阳虚而血不能化者为中的之剂。若阴虚而血不生以致不化。固非所宜。
凡血少而小便不利者。用之反致燥急之苦。（丹溪）凡阴虚内热。火炎水涸者。服琥珀
以强利小便。则愈损其阴。（仲淳）
〔修治〕用细布包。内豆腐锅中煮之。再入灰火略煨过用。入目制用。安心神生用。
又名黄松节。治疗偏风（半身不遂）。口眼歪斜。毒风引起的筋脉拘挛、不能言语。心神受惊而抽搐。因虚导致的健忘。治疗脚气病引起的痹痛。
各种筋脉牵拉收缩。风寒湿邪搏结于筋骨，足部筋脉拘挛疼痛难以行走。用茯神木一两，乳香一钱，在瓦器中炒制，研成粉末。用木瓜酒送服二钱。
〔修治〕 去除木质部分。先将茯神去皮，细细切碎，放入箩筛内，置于水盆中，荡洗筛选。去除筋膜，澄清后，取沉淀在底部的细末，晒干。再用牛乳拌和蒸制三四次，或者五六次更好。每茯神一两，蒸制后变为二两。茯苓用于补益方剂时，也按照此法炮制。如果是为了引导邪气外出，只需去掉其筋络即可，不必取用水底的细末。
松树茂盛时，流出的树脂渗入地下，经过千年后凝结而成。一种像物体般的珀，内部有异物形状；一种血珀，殷红如血；一种赤松脂，形状像琥珀，浑浊粗大且脆，纹理都是横向的；一种水珀，浅黄色，多皱纹；一种石珀，深黄色，重如砂石；一种花珀，纹理像马尾松，黄白相间的次之。另外还有一种蜜蜡珀，闻起来有蜜蜡的香气，颜色黄白，即由蜂蜜转化而来；一种枫脂珀，燃烧时没有松脂的气味，即由枫树树脂转化而来。入药以松脂和血珀为最好。
气味甘平。纯阳之色赤。阳中带微阴。性质沉降。归入手少阴心经和手少阳三焦经，也归入足厥阴肝经。专入血分。主要作用是安定五脏，定魂魄，化瘀血，治疗心痛、癫狂邪气，清肺利小肠，明目去翳，治疗产后血瘀腹痛（儿枕痛），止血生肌，愈合金疮。琥珀属于阳金。（朱丹溪）感受土木之气而兼有火化。配合辛温药物则能行血破血；配合淡渗利湿药物则能通利窍道、行水；配合金石重镇药物，则能镇心安神。（陈实功）与乳香、没药、延胡索、干漆、鳖甲制成散剂，治疗产后血晕有奇效。佐以人参、益母草、泽兰、生地、牛膝、当归、苏木，煎汤送服前药，治疗儿枕痛、恶露不尽、腹痛、小腹痛、寒热等症状，极为有效。同丹砂、滑石、竹叶、麦冬、木通一起使用，治疗心热波及小肠，导致小便不利，立竿见影。同人爪、珍珠、玛瑙、珊瑚一起使用，可去除目翳赤障。得丹砂、犀角、羚羊角、天竺黄、远志、茯神配合，可镇惊，主治各种痫证。小儿转胞（尿潴留），琥珀一两研末，用水四升，葱白十茎，煮取汁三升，加入琥珀末二钱，温服。治疗沙石诸淋（泌尿系结石等），服用三次见效。
〔论〕 松树秉承真阳的性质，不被阴寒所改变。即使深入地下，其真阳之气仍能吸收阴气以形成茯苓。深入地下时间长久，其真阳之液更能化阴以形成琥珀。所以琥珀如果不是殷红的血色，不够晶莹透彻的，说明阴气未尽化，未能发出真阳的光芒。它入血分治疗营血，洁古（张元素）、东垣（李杲）都说它是纯阳的，是因为阳气能化生营血，化生的营血又能返还滋养阳气。阳气化生营血，营血返还滋养阳气，那么功能就能安定五脏、定魂魄了。如果真阳虚弱而不能化血，气血郁结于心胸导致心痛；或者血不能化而生痰聚于心窍导致癫邪。这些症状都可用琥珀来对治。心主血，而小肠运行君火的气化作用，血与水同源非二致。琥珀既然能汇聚阳精以化血，那么利小肠及明目去翳等治疗作用，都可以贯通理解。至于瘀血的化解（如产后血瘀腹痛），本来不是以攻破泻下为功效，所以能化即能止，其疗效并现在止血生肌上。大抵琥珀所治疗的病症，只有阳虚而血不能化者才是对症的良剂。如果是阴虚而血不生导致的不化，固然不适合使用。
凡是血少而小便不利的人，使用琥珀反而会导致燥急的痛苦。（朱丹溪）凡是阴虚内热，火炎水涸的人，服用琥珀强行利小便，则会更加损伤阴液。（陈实功）
〔修治〕 用细布包裹，放入豆腐锅中煮，再放入灰火中略煨过后使用。入眼科制剂用制过的，安心神用生品。
Also known as Huangsongjie. Treats pianfeng (hemiplegia). Facial paralysis (deviation of mouth and eyes). Tendon spasms and mutism caused by toxic wind. Palpitations and convulsions due to fright in the heart spirit. Forgetfulness due to deficiency. Treats bi-pain (numbness and pain) caused by jiaoxie (beriberi or gout-like conditions).
Various tendon contractions and pulling. Wind-cold-dampness congealing in the tendons and bones, causing painful tendon spasms in the feet making walking difficult. Use Fushenmu (Wood of Poria) 1 liang, Xuxiang (Frankincense) 1 qian, stir-fry in a clay vessel, grind into powder. Take 2 qian with Qujiajiu (Quince wine).
[Processing] Remove the woody part. First, peel the Fushen (Sclerotium of Poria with Hostwood), cut finely, place in a sieve, set in a basin of water, wash and sieve. Remove the fibrous membranes, clarify, and take the fine sediment at the bottom, dry it in the sun. Then mix with cow's milk and steam for three or four times, or five or six times is better. For every 1 liang of Fushen, it becomes 2 liang after steaming. When Fu Ling (Poria) is used in tonifying prescriptions, process it according to this method. If used to guide out pathogenic factors, simply removing its tendinous parts is sufficient; there is no need to collect the fine sediment from the water.
When the pine tree is lush, resin flows into the soil. After a thousand years, it condenses and forms. One type resembles an object with internal shapes; one type is Xuepo (Blood Amber), dark red like blood; one type is Chisongzhi (Red Pine Resin), shaped like amber, turbid, large, and brittle, with horizontal textures; one type is Shuipo (Water Amber), pale yellow, with many wrinkles; one type is Shipo (Stone Amber), deep yellow, heavy like sand and stone; one type is Huapo (Flower Amber), textured like Masson pine, with yellow and white intermingling, which is of secondary quality. Another type is Milapo (Honey Wax Amber), smelling of honey wax when burnt, yellow-white in color, transformed from honey. Another type is Fengzhipo (Maple Resin Amber), does not smell of pine resin when burnt, transformed from maple resin. For medicinal use, Songzhi (Pine Resin) and Xuepo (Blood Amber) are the best.
Taste: Sweet, neutral. Nature: Pure yang, red color. Yang containing slight yin. Descending action. Enters the Hand-Shaoyin (Heart) and Hand-Shaoyang (Sanjiao) meridians, also enters the Foot-Jueyin (Liver) meridian. Specifically enters the Blood level. Main actions: Calm the five zang organs, stabilize the hun and po spirits, resolve blood stasis, treat heart pain and manic disorders, clear the lungs and benefit the small intestine, brighten the eyes and remove nebulae, treat postpartum blood-stasis abdominal pain (Erzhen tong), stop bleeding and generate flesh, heal metal wounds. Hupo (Amber) belongs to Yang Metal. (Zhu Danxi) It perceives the qi of wood and earth and combines with fire transformation. Combined with acrid-warm herbs, it moves and breaks blood; combined with bland-leaching herbs, it opens orifices and promotes urination; combined with mineral-heavy sedatives, it calms the heart and settles the spirit. (Chen Shigong) With Ruxiang (Frankincense), Moyao (Myrrh), Yanhusuo (Corydalis Rhizome), Ganqi (Drynaria Rhizome), Biejia (Carapax Trionycis) made into a powder, it treats postpartum blood syncope with miraculous effect. Assisted by Renshen (Ginseng Root), Yimucao (Motherwort Herb), Zelan (Lycopus Herb), Shengdi (Rehmannia Root), Niuxi (Achyranthes Root), Danggui (Angelica Sinensis Root), Sumu (Sappan Wood), decocted to send down the previous medicine, it treats Erzhen pain, incomplete lochia discharge, abdominal pain, lower abdominal pain, chills and fever, etc., with extreme efficacy. Together with Dansha (Cinnabar), Huashi (Kaolin), Zhuye (Bamboo Leaf), Maidong (Ophiopogon Tuber), Mutong (Akebia Stem), it treats heat in the heart affecting the small intestine, resulting in difficult urination, with immediate effect. Together with Renzhua (Human Nail), Zhenzhu (Pearl), Manao (Agate), Shanhu (Coral), it removes eye nebulae and red obstructions. Obtaining Dansha (Cinnabar), Xijiao (Rhinoceros Horn - *Note: Substitute with Buffalo Horn in modern practice*), Lingyangjiao (Antelope Horn), Tianzhuhuang (Calamus Tuber), Yuanzhi (Polygala Root), Fushen (Sclerotium of Poria with Hostwood), it settles fright and treats various epilepsy syndromes. For pediatric retention of urine (Zhuanbao), Hupo (Amber) 1 liang ground into powder, boiled with 4 sheng of water and 10 stalks of Congbai (Scallion White) to obtain 3 sheng of juice, add 2 qian of Hupo powder, take warm. Effective for lithiasis and strangury after three doses.
[Discussion] The pine tree possesses the nature of true yang, unaltered by yin-cold. Even when penetrating deep into the earth, its true yang qi can still absorb yin to form Fuling (Poria). Penetrating the earth for a long time, its true yang fluid can further transform yin to form Hupo (Amber). Therefore, if Hupo (Amber) is not dark red like blood and not sufficiently crystal clear, it indicates that yin has not been fully transformed and the light of true yang has not emerged. It enters the blood level to treat Ying-nutrient blood. Jiegu (Zhang Yuansu) and Dongyuan (Li Dongyuan) both state it is pure yang because yang can transform Ying-nutrient blood, and transformed Ying-nutrient blood can return to nourish yang. When yang transforms Ying-nutrient blood, and Ying-nutrient blood returns to nourish yang, the function is to calm the five zang organs and stabilize the hun and po spirits. If true yang is deficient and cannot transform blood, qi and blood stagnate in the chest causing heart pain; or blood fails to transform and phlegm gathers in the heart orifices causing manic disorders. These flavors are all counter-treatments for these conditions. The heart governs blood, while the small intestine conducts the qi transformation of monarch fire. Blood and water share the same origin. Since Hupo (Amber) can gather the essence of yang to transform blood, then benefiting the small intestine, brightening the eyes, and removing nebulae can be understood as consistent principles. Regarding the resolution of blood stasis (such as postpartum blood-stasis abdominal pain), it does not primarily rely on breaking and purging. Therefore, resolving leads to stopping, and its efficacy manifests in stopping bleeding and generating flesh. Generally, Hupo (Amber) is indicated specifically for cases where yang deficiency prevents blood transformation. If yin deficiency leads to lack of blood generation and subsequent failure to transform, it is certainly not suitable.
For those with blood deficiency and difficult urination, using Hupo (Amber) may instead cause discomfort of dryness and urgency. (Zhu Danxi) For those with yin deficiency and internal heat, with fire flaring and water dried up, taking Hupo (Amber) to strongly promote urination will further damage yin. (Chen Shigong)
[Processing] Wrap in fine cloth, boil in a pot with tofu, then briefly roast over ash fire before use. For ophthalmic preparations, use processed Hupo (Amber); for calming the heart spirit, use raw Hupo (Amber).