姜炙用。干姜为使。恶泽泻、硝石、寒水石，忌豆。色紫味辛者乃真也。去粗皮
用。
温，苦，无毒。健脾温胃，浓肠和中，除烦化痰，止呕消胀。破宿血而化水谷，导宿食
而
开水结，定霍乱而止喘咳，除反胃而疗吐酸。解风热之头痛，却膨满之腹痛。泄痢淋露之疾
，寒热惊悸之 。能泄五脏诸气，兼安胎产诸病。
生交趾、冤句。三、九、十月采皮。洛阳、陕西、湖南、江淮、蜀川山谷中往往有之。
木高
三四丈，四季不凋，红花而青实。皮极鳞皱，肉浓色紫而味辛者为胜。今伊芳阳及商州亦有之
，但薄而色淡，不如梓州者浓而紫色有油也。近世一种，其貌颇似之，全失气味，未知何木
皮也。
盐水炒去丝用。恶元参、蛇皮。
甘，温，辛，平，无毒。补中益精，坚筋润肝。除腰膝痛重，疗阴下湿痒。小便之余沥，
脚
生上虞山谷及上党、汉中。二、五、六、九月采皮。商州、成州、峡州大山中亦有之。木高
数丈，叶似辛夷，其皮
折之有白丝相连。川产者良。
苦，温，无毒。除一切下血、血崩、血痢、肠风、脏毒，杀诸般疳虫、蛔虫、疥虫、鬼
疰、
精尿遗泄之 。
二木南北皆有之。椿木皮粗而木赤，其叶香甘可茹。樗木皮细而木白，其叶臭恶不可食。
利清血腹痛，椿根白皮，醋酒丸豆大，米汤下三十丸。（验方第一。）
下痢赤白，椿木皮为末，每米汤下一钱。（第二。）
脏毒下血，椿皮酒丸服。（第三。）
积年下血，樗白皮，煎、丸俱可。（第四。）
白带，椿木皮、南滑为末，丸服。又同黑姜为末，黑芍、黑柏诸味，以丸服之。（第五。）
男子白浊。同上。（第六。）
肠风纯血，樗荚，半生半烧，末服。（第七。）
白带，椿白皮、白鸡冠、白棕子灰共为末，用白糖、沸水冲服之。（第八。）
下痢赤白，樗根白皮两、茶叶两、红白糖各两、胡桃二个、大枣七个去核，水煎。（第
九。）
Use after stir-frying with ginger juice. Dried Ginger (Ganjiang, 干姜) is used as a guiding herb. Contraindicated with Alumen Crudum (Zexie, 泽泻), Natrii Sulfas (Xiaoshi, 硝石), and Stalactitum (Hanshuishi, 寒水石); avoid consuming beans. The authentic variety is purple in color and pungent in taste. Remove the rough bark before use.
Nature: Warm. Flavor: Bitter. Toxicity: Non-toxic. [Poupartia Cortex / Magnoliae Officinalis Cortex] Strengthens the spleen and warms the stomach, thickens the intestines and harmonizes the middle jiao, relieves irritability and resolves phlegm, stops vomiting and reduces distension. Breaks down old blood stasis and aids digestion of food and fluids, guides out retained food and opens qi stagnation, calms cholera and stops wheezing/coughing, eliminates regurgitation and treats acid reflux. Relieves headache caused by wind-heat, alleviates abdominal fullness and pain due to qi stagnation. Applicable for dysentery, strangury, and other ailments accompanied by alternating chills and fever or palpitations/fright. It can vent qi stagnation in the five zang organs and also helps stabilize pregnancy and treat obstetric conditions.
Originates from Jiaozhi and Yuanju. Bark is harvested in the third, ninth, and tenth lunar months. Found in valleys of Luoyang, Shaanxi, Hunan, Jianghuai, and Shu regions. Trees are three to four zhang high, evergreen, bearing red flowers and green fruits. The bark is extremely scaly/wrinkled; those with thick flesh, purple color, and pungent taste are superior. Currently produced in Yiyang and Shangzhou, but these are thinner and paler, lacking the thickness, purple hue, and oily texture of those from Zizhou. A modern variety resembles it closely but lacks the characteristic aroma and flavor; its botanical identity is unknown.
Use after stir-frying with salt water and removing the fibrous strands. Contraindicated with Scrophulariae Radix (Xuanshen, 玄参) and Ophichthidis Cutis Squama (Shepi, 蛇皮).
Nature: Sweet, Warm, Pungent, Neutral. Toxicity: Non-toxic. [Eucommiae Cortex / Du Zhong] Tonifies the middle jiao and benefits essence, strengthens sinews and bones, and moistens the liver. Relieves soreness and heaviness of the lower back and knees, treats dampness and itching in the genital region, and improves dribbling urine.
Originates from valleys of Shangyu, Shangdang, and Hanzhong. Bark is harvested in the second, fifth, sixth, and ninth lunar months. Also found in large mountains of Shangzhou, Chengzhou, and Xiazhou. Trees reach several zhang in height, leaves resemble Magnolia biondii (Xinyi, 辛夷), and the bark reveals white fibrous strands when broken. Those from Sichuan are of good quality.
Nature: Bitter, Warm. Toxicity: Non-toxic. [Toosendan Fructus Cortex / Ailanthi Cortex / Toona Cortex] Treats various types of lower body bleeding, metrorrhagia, bloody dysentery, intestinal wind, visceral toxicity, kills various parasites including malnutrition worms, roundworms, scabies mites, ghost infections (infectious malignant diseases), and symptoms of seminal emission or urinary incontinence.
Both trees grow in northern and southern China. The bark of Chun (Toona sinensis) is rough with reddish wood, and its leaves are fragrant, sweet, and edible. The bark of Chu (Ailanthus altissima) is fine with whitish wood, and its leaves have an offensive odor and are inedible.
1. For clear bloody abdominal pain: Use root bark of Chun (Toona sinensis), processed into pills the size of beans with vinegar and wine, taken with rice broth, 30 pills per dose. (Verified Formula 1.)
2. For dysentery with red and white discharge: Powder the bark of Chun tree, take one qian with rice broth per dose. (Formula 2.)
3. For visceral toxicity causing bloody stool: Process bark of Chun tree with wine into pills for oral administration. (Formula 3.)
4. For chronic bloody stool: Root bark of Chu (Ailanthus altissima), either decocted or made into pills. (Formula 4.)
5. For leukorrhea: Powder the bark of Chun tree and Nahuashi (South滑石/Calcitum), make into pills. Alternatively, powder with Heijiao (Black Ginger), combined with Heishaoyao (Black Paeonia) and Heibai (Black Phellodendron), etc., make into pills. (Formula 5.)
6. For male turbid urine: Same method as above. (Formula 6.)
7. For intestinal wind causing pure blood: Half raw, half charred pods of Chu tree, powdered and administered. (Formula 7.)
8. For leukorrhea: Powder the white bark of Chun tree, white cockscomb flower, and ash of white palm fruit together. Mix with white sugar and boiling water to take. (Formula 8.)
9. For dysentery with red and white discharge: Decoct two liang of white bark of Chu root, two liang of tea leaves, one liang each of red and white sugar, two walnuts, and seven dates (pitted) in water. (Formula 9.)