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
【杜仲】
味道辛、甘，性平、温，无毒。主治腰脊疼痛，补益中气，增益精气，坚固筋骨，增强意志，消除阴部瘙痒潮湿及小便淋漓不尽。治疗脚中酸痛疼痛，不愿踩地，长期服用可使身体轻盈并延缓衰老。又名思仙，又名思仲，又名木绵。产于上虞山谷以及上党和汉中地区。二月、五月、六月、九月采集树皮，阴干。畏惧蛇蜕皮和玄参。上虞位于豫州，是虞、虢国的虞，并非会稽郡的上虞县。现在使用的是产自建平、宜都的杜仲，形状像厚朴（Magnolia officinalis），折断后以白色丝状物多为佳。使用时需薄削去除外层横向纹理的甲皮，切碎使丝断开。
【枫香脂】
又名白胶香，味道辛、苦，性平，无毒。主治瘾疹风痒、浮肿、牙齿疼痛。其树皮味道辛，性平，有小毒，主治水肿，利水气，煮汁使用。所在的大山都有生长。树高大，叶子呈三角形，商州、洛州之间多有生长。五月在树上砍凿坑穴，十一月采集树脂。（新附）
【干漆】
味道辛，性温，无毒、有毒。主治严重外伤，补益中气，接续筋骨，填补髓脑，安定五脏，治疗五缓六急、风寒湿痹、咳嗽，消散瘀血、痞结、腰痛，治疗女子疝瘕，通利小肠，驱除蛔虫。生漆可驱除长虫（寄生虫）。长期服用可使身体轻盈并延缓衰老。产于汉中川谷。夏至后采集，干燥处理。半夏为其引经药，畏惧鸡蛋，现在又忌讳油脂。现今梁州的漆最好，益州也有，广州的漆性质急燥易干。各处漆桶上盖裹处，自然有干燥者，形状如蜂巢，孔孔间隔者为佳。生漆毒性猛烈，人们用鸡蛋白调和服用，以驱虫。仍有咬伤肠胃的情况，对漆过敏的人甚至会导致死亡。外敷也能使身体肌肉疮肿，自有其他疗法。仙方用蟹将其消解为水，炼制
[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.