竹种最多，惟大而味甘者为胜，必生长一年者，嫩而有力，取用方佳。
竹沥，系烧竹而两头流出之汁，每沥一杯，加生姜汁二匙，用却阴虚发热，中风噤
牙，小儿天吊惊痫，妇人胎产闷晕，胎前不损子，产后不凝虚，止惊悸，却痰痫，痰在
经络四肢，屈曲而搜剔，痰在皮里膜外，直达以宣通，但世以为大寒，殊不知系火
出，又佐姜汁，有何寒乎！况沥之出于竹，犹人身之血也，极能补阴，长于清火，性滑
流利，走窍逐痰，故为中风之要药，以中风莫不由于阴虚火旺，煎熬津液成痰，壅塞气
道，不能升降，仗此流利经络，使痰热去气道通，而外症愈也。故火燥热者宜之。若胃
虚肠滑，寒痰湿痰食积生痰，不可用也。至于荆沥，性味相近，但气实寒多用荆，气虚热多用竹。
主治（痘疹合参） 养阴退阳，善开热痰，胃强肺热者相宜，肺虚肠滑者切禁。
一名竹膏。产于天竺国，乃竹之精气结成。其气味功用与竹沥相仿，但竺黄气微
寒，性亦稍缓，故为小儿要药，入手少阴经，专为清热养心化痰，安惊之需，久用亦能寒中。
天竺黄，治小儿天吊惊痫。大人中风不语，镇心明目，解热驱邪，豁痰利窍，除热
养心，滋养五脏，金疮风热。
主治（痘疹合参） 主痰壅失音明目，去风湿惊悸镇心，滋养五脏，小儿最宜，和缓故也。
竹子的种类很多，只有那些茎秆粗大且味道甘甜的才算是上品，必须生长满一年的竹子，质地嫩滑且药力充沛，取用效果才好。
竹沥，是将竹子烧灼后从两头流出的汁液。每服用一杯竹沥，需加入两匙生姜汁，这样可以消除阴虚引起的发热、中风导致的牙关紧闭、小儿天吊惊痫（一种以颈项强直、角弓反张为特征的惊风病）、妇人产前产后因气血逆乱导致的昏晕。它在胎前不伤胎儿，产后不导致虚滞，能止住惊悸，祛除痰饮引发的癫痫。对于停留在经络四肢的痰浊，它能深入曲折之处搜剔清除；对于停留在皮里膜外（胸膈之间）的痰浊，它能直达病所宣通消散。世人常认为竹沥是大寒之品，殊不知它是由火烤而出，又佐以姜汁，哪里还有寒性呢？况且竹沥出于竹中，犹如人身之血液，极能补益阴液，擅长清泻火热，其性质滑利流畅，能走窜窍道、驱逐痰浊，因此是治疗中风的重要药物。因为中风多由阴虚火旺，煎熬津液凝结成痰，壅塞气道，导致气机升降失常所致，依靠竹沥使经络流利，痰热去除、气道通畅，外在症状自然痊愈。所以，火燥热盛者适宜使用。如果是胃虚肠滑，或因寒痰、湿痰、食积而生痰者，则不可使用。至于荆沥，其性味与竹沥相近，但气实寒证多用荆沥，气虚热证多用竹沥。
主治（结合痘疹病症参考）：滋养阴液，退却阳亢，善于开通热痰，适合胃强肺热者，肺虚肠滑者严禁使用。
天竺黄，又名竹膏。产于天竺国，是竹子的精气凝结而成。其气味和功效与竹沥相似，但天竺黄气微寒，药性也稍显缓和，因此是治疗小儿疾病的要药，归入手少阴心经，专门用于清热养心、化痰、安神定惊。长期服用也可能损伤中阳。
天竺黄，用于治疗小儿天吊惊痫。成人中风后不能言语，可起到镇心安神、明目、解热驱邪、豁痰利窍、除热养心的作用，并能滋养五脏，治疗金疮受风热侵袭。
主治（结合痘疹病症参考）：主治痰壅导致的失音、明目，去除风湿、惊悸、镇心安神，滋养五脏，最适合小儿使用，因为其药性和缓的缘故。
Bamboo species are numerous; only those with thick stems and sweet taste are considered superior. They must be at least one year old to be tender yet potent, making them suitable for extraction.
Zhuli (Bamboo Sap), is the juice flowing from both ends of bamboo after being roasted. For every cup of Zhuli, two spoons of fresh ginger juice should be added. This combination treats fever due to Yin deficiency, trismus (lockjaw) in stroke, Tian Diao epilepsy (a type of convulsive disorder characterized by opisthotonos) in children, and syncope or dizziness in women during pregnancy and postpartum. It does not harm the fetus before birth nor cause stagnation in deficiency states after birth. It stops palpitations and anxiety, expels phlegm causing epilepsy. For phlegm lodged in the meridians and limbs, it penetrates deeply to clear it; for phlegm in the subcutaneous tissue and intermuscular spaces (between skin and fascia), it reaches directly to promote circulation. Although commonly regarded as extremely cold in nature, this is a misconception because it is extracted via heat and combined with ginger juice, thus neutralizing any cold property. Moreover, since Zhuli originates from bamboo, it resembles blood in the human body; it strongly nourishes Yin and excels at clearing fire. Its slippery and smooth nature allows it to penetrate orifices and expel phlegm, making it a crucial herb for treating stroke. Stroke often arises from Yin deficiency with hyperactive fire, which scorches body fluids into phlegm, obstructing airways and impairing Qi ascent and descent. By smoothing the meridians, Zhuli helps eliminate phlegm-heat and unblock airways, resolving external symptoms. Therefore, it is suitable for cases involving fire, dryness, and heat. However, it is contraindicated in cases of Spleen/Stomach deficiency with loose bowels, or when phlegm is generated from cold-phlegm, damp-phlegm, or food retention. Jingli (Jujube Bamboo Sap) has similar properties but is preferred for excess-cold patterns, whereas Zhuli is preferred for deficiency-heat patterns.
Main Indications (referencing smallpox/rubella contexts): Nourishes Yin and subdues Yang; effectively opens up hot-phlegm. Suitable for patients with strong Stomach and Lung heat; strictly contraindicated in Lung deficiency with loose bowels.
Also known as Zhu Gao (Bamboo Paste). Produced in Tianzhu (India), it is formed from the essence of bamboo. Its flavor, odor, and functions are similar to Zhuli, but Tianzhu Huang has a slightly cold nature and milder action. Thus, it is an essential herb for pediatric conditions, entering the Hand-Shaoyin Heart Meridian. It specifically clears heat, nourishes the Heart, resolves phlegm, and calms fright. Prolonged use may damage the Middle Jiao.
Tianzhu Huang treats Tian Diao epilepsy in children. In adults suffering from aphasia due to stroke, it calms the Heart, brightens the eyes, clears heat, drives out pathogens, resolves phlegm, benefits orifices, removes heat, nourishes the Heart, and tonifies the Five Zang organs. It is also used for traumatic wounds complicated by wind-heat.
Main Indications (referencing smallpox/rubella contexts): Mainly treats aphasia due to phlegm obstruction and brightens the eyes; dispels wind-dampness, alleviates palpitations, calms the Heart, and nourishes the Five Zang organs. Most suitable for children due to its mild and gentle nature.