味辛、甘，平、温，无毒。主腰脊痛，补中，益精气，坚筋骨，强志，除阴下痒湿，小
便余沥。脚中酸疼痛，不欲
践地，久服轻身能老。一名思仙，一名思仲，一名木绵。生上虞
山谷又上党及汉中。二月、五月、六月、九月采皮，阴干。
畏蛇蜕皮、玄参。上虞在豫州，虞、虢之虞，非会稽上虞县也。今用出建平、宜都者，
状如浓朴，折之多白丝为佳。
用之薄削去上甲皮横理，切令丝断也。
一名白胶香，味辛、苦，平，无毒。
主瘾疹风痒、浮肿、齿痛。其树皮，味辛，平，有小毒，主水肿，下水气，煮汁用之。
所在大山皆有。
树高硕，叶三角，商、洛之间多有。五月斫树为坎，十一月采脂。（新附）
味辛，温，无毒、有毒。主绝伤，补中，续筋骨，填髓脑，安五脏，五缓六急，风寒湿
痹，疗咳嗽，消瘀血，痞结，
腰痛，女子疝瘕，利小肠，去蛔虫。生漆去长虫。久服轻身能老。生汉中川谷。夏至后采，
干之。
半夏为之使，畏鸡子，今又忌油脂。今梁州漆最胜，益州亦有，广州漆性急易燥。其诸
处漆桶上盖裹，自然有干者，
状如蜂房，孔孔隔者为佳。生漆毒烈，人以鸡子白和服之，去虫。犹有啮肠胃者，畏漆人乃
致死。外气亦能使身肉疮肿，
自别有疗法。仙方用蟹消之为水，炼
[Eucommiae Cortex (Duzhong)]
Taste: Pungent, Sweet. Nature: Neutral, Warm. Toxicity: Non-toxic. Indications: Primarily treats lower back and spinal pain, tonifies the Middle Jiao, benefits essence and Qi, strengthens sinews and bones, fortifies willpower, eliminates itching and dampness in the genital area, and dribbling of urine. Treats soreness and pain in the feet, reluctance to bear weight on the ground. Long-term use makes the body feel light and delays aging. Alternative names: Sixian, Sizhong, Mumian. Habitat: Valleys in Shangyu, as well as Shangdang and Hanzhong regions. Harvest time: Bark is collected in the 2nd, 5th, 6th, and 9th lunar months and dried in the shade. Antidotes/Incompatibilities: Averse to snake slough and Scrophulariae Radix (Xuanshen). Note: The Shangyu referred to here is in Yuzhou (the Shangyu of Yu and Guo states), not the Shangyu County in Kuaiji Commandery. Current medicinal material comes from Jianping and Yidu. It resembles Magnoliae Officinalis Cortex (Houpo); it is considered superior if it breaks with many white fibrous threads. Preparation: Thinly slice and remove the outer corky layer with transverse lenticels, then cut into pieces to break the fibers.
[Tinctura Liquidambaris (Fengxiangzhi)]
Alternative name: Baijiaoxiang. Taste: Pungent, Bitter. Nature: Neutral. Toxicity: Non-toxic. Indications: Primarily treats urticaria with wind-induced itching, edema, and toothache. The bark of its tree tastes pungent, is neutral, slightly toxic, primarily treats edema, promotes diuresis to drain water qi, and is used by boiling in water. Found in major mountains wherever it grows. The tree is tall and robust with triangular leaves; abundant between Shangzhou and Luozhou. Harvest: In the 5th month, cut notches into the tree; collect resin in the 11th month. (Newly added)
[Lacca Preparata (Ganqi)]
Taste: Pungent. Nature: Warm. Toxicity: Non-toxic, Toxic. Indications: Primarily treats severe injuries, tonifies the Middle Jiao, reconnects sinews and bones, fills marrow and brain, calms the Five Zang organs, treats "Wu Huan Liu Ji" (five slacknesses and six tensions), bi-syndrome due to wind-cold-dampness, cough, resolves blood stasis, masses, lower back pain, female hernia and masses, unblocks the Small Intestine, expels roundworms. Raw lacquer (Shengqi) expels long worms (parasites). Long-term use makes the body feel light and delays aging. Habitat: Rivers and valleys in Hanzhong. Harvest time: Collected after the Summer Solstice and dried. Pharmacokinetics/Interactions: Pinelliae Rhizoma Preparatum (Banxia) acts as an assistant/guide; averse to egg yolk; currently also contraindicated with fatty oils. Quality: Lacquer from Liangzhou is best; Yizhou also produces it; Guangzhou lacquer is sharp-acting and dries easily. Natural dried lacquer found on the lids of lacquer buckets resembles honeycombs with distinct cells; this form is superior. Raw lacquer is highly toxic. People mix raw lacquer with egg white for oral administration to expel parasites. However, some cases involve irritation of the stomach and intestines. Individuals allergic to lacquer may even die from exposure. External application can cause skin sores and swelling; there are specific treatments for these reactions. Immortal prescriptions use crabs to dissolve lacquer into water for refining.