（生剑南及宜州果州山谷。今广西亦有。以忠州万州者为佳。苗蔓如豆。叶青。经冬
不凋。八月采根。广南者如小槐高尺余。石鼠食其根。故岭南人捕鼠取肠胃曝干。解毒攻热
效。）
【气味】
甘寒无毒。（按沈括笔谈云。山豆根味极苦。本草言味甘大误矣。）
【主治】
解诸药毒。止痛。消疮肿毒发热咳嗽。治人及马急黄。杀小虫。含之咽汁。解咽喉
肿
毒极妙。研末汤服五分。治腹胀喘满。酒服三钱。治女人血气腹胀。又下寸白诸虫。丸服
止下痢。磨汁服止卒患热厥心腹痛。五种痔痛。研汁涂诸热肿秃疮蛇狗蜘蛛伤。
【气味】
苦寒无毒。又气寒善行。味苦性燥。入足太阴阳明经。去湿热药也。兼入手太阴阳
明。为诸黄风痹要药。世医只施之疮科浅矣。
【主治】
头风黄胆。咳逆淋沥。女子阴中肿痛。湿痹死肌。不可屈伸起止行步。疗四肢不安
。时行腹中大热饮水。欲走大呼。小儿惊痫。妇人产后余痛。治一切热毒风。恶风风疮。疥
癣赤烂。眉发脱落。皮肌急。壮热恶寒。解热黄酒黄急黄谷黄劳黄。通关节。利九窍及血脉
。通小肠水气。天行时疾。头痛眼疼。其花同功。治肺嗽。
恶（螵蛸 桔梗 茯苓 萆 ）
【气味】
咸温有小毒。入手太阴肺手阳明大肠经。
【主治】
其功只在行水下气通血脉而已。若病患涉虚者。此则走散太甚。不宜用之。恐冷利
大肠也。治伤寒汗下后。心下痞坚。噫气不除。有七物旋复代赭汤。治妇人有三物旋复汤。
治痰饮在两胁胀满。有旋复花丸。皆通泄之义也。用者详审之。
【山豆根】
（生长于剑南地区以及宜州、果州的山区河谷。如今广西也有出产。以忠州和万州产的质量最佳。植株藤蔓类似豆类，叶子青色，经过冬天也不凋谢。八月采集根部。广南地区的植株像小槐树一样高约一尺多。石鼠吃它的根，所以岭南人捕捉老鼠后取出其肠胃晒干，用于解毒清热效果显著。）
【气味】
味甘，性寒，无毒。（按沈括《笔谈》记载：山豆根味道极苦，本草书中说它味甘甜是大错特错了。）
【主治功效】
解除各种药物中毒。止痛。消除疮肿毒引起的发热咳嗽。治疗人和马的急黄病。杀灭小虫子。含在口中让汁液咽下，对解除咽喉肿痛毒非常奇妙。研成粉末用汤水送服五分，治疗腹胀气喘胸闷。用酒送服三钱，治疗妇女血气阻滞导致的腹胀。又能驱除寸白虫等寄生虫。制成丸剂服用可止住痢疾。磨成汁液服用可止住突然发作的热厥心腹痛。治疗五种痔疮疼痛。研成汁液涂抹各种热肿、秃疮以及蛇、狗、蜘蛛咬伤。
【白藓皮】
【气味】
味苦，性寒，无毒。另外气味寒凉善于通行，味道苦性质燥烈。归足太阴脾经和足阳明胃经。是去除湿热的药物。兼入手太阴肺经和手阳明大肠经，是治疗各种黄疸、风痹的要药。世间的医生只把它用在疮疡科，见识太浅了。
【主治功效】
治疗头风、黄疸。治疗咳嗽气逆、小便淋漓不尽。治疗女子外阴肿痛。治疗湿痹导致的肌肤僵硬坏死，关节不能屈伸，行走困难。治疗四肢不安宁。治疗流行性腹中大热、想喝水、想奔跑大叫。治疗小儿惊痫。治疗妇人产后余痛。治疗一切热毒风邪、恶风、风疮、疥癣红肿溃烂、眉毛头发脱落、皮肤肌肉紧绷拘急、高热恶寒。解除热黄、酒黄、急黄、谷黄、劳黄。疏通关节，通利九窍及血脉。通调小肠的水气。治疗天行时疾（流行性疾病）、头痛眼疼。白藓花功效相同。治疗肺嗽。
【配伍禁忌】
畏螵蛸、桔梗、茯苓、萆薢。
【旋复花】
【气味】
味咸，性温，有小毒。归入手太阴肺经和手阳明大肠经。
【主治功效】
它的作用仅仅在于行水、降气、通血脉罢了。如果病患涉及虚证，此药走散之力太过猛烈，不宜使用。恐怕会因寒凉导致大肠滑泄。治疗伤寒经过发汗或攻下之后，心下痞塞坚硬，嗳气不止。方剂有七物旋复代赭汤。治疗妇人病症有三物旋复汤。治疗痰饮停留在两胁导致胀满。方剂有旋复花丸。这些都属于通泄的含义。使用者请详细审察。
[Shandougen]
(Grows in the mountain valleys of Jiannan, Yizhou, and Guozhou. It is also found in Guangxi today. The best quality comes from Zhongzhou and Wanzhou. The vines resemble those of beans, with green leaves that do not wither in winter. Roots are harvested in August. In Guangnan, the plants grow about one chi tall, resembling small locust trees. Stone rats eat their roots; therefore, people in Lingnan catch rats, extract their intestines and stomachs, dry them, and use them for detoxification and clearing heat with good efficacy.)
[Flavor and Nature]
Sweet, cold, non-toxic. (Note: Shen Kuo's *Bitan* states that Shandougen tastes extremely bitter; claiming it is sweet in the Materia Medica is a major error.)
[Indications]
Resolves toxicity of various medicines. Relieves pain. Reduces swelling and toxicity of sores, fever, and cough. Treats acute jaundice in humans and horses. Kills small insects. Holding it in the mouth and swallowing the juice is excellent for resolving throat swelling and toxicity. Grind into powder and take 5 fen with decoction to treat abdominal distension, wheezing, and fullness. Take 3 qian with wine to treat abdominal distension due to blood and qi stagnation in women. Also expels tapeworms and other parasites. Taken as pills, it stops dysentery. Ground juice taken internally stops sudden onset of heat-jue (cold extremities due to heat) with heart and abdominal pain. Treats pain from five types of hemorrhoids. Apply ground juice topically to various heat-swelling conditions, alopecia barbae/cutis, and bites/stings from snakes, dogs, and spiders.
[Baixianpi]
[Flavor and Nature]
Bitter, cold, non-toxic. Its nature is cold and promotes circulation; its flavor is bitter and drying. Enters the Foot-Taiyin Spleen and Foot-Yangming Stomach meridians. It is an herb that removes damp-heat. It also enters the Hand-Taiyin Lung and Hand-Yangming Large Intestine meridians. It is a key herb for treating various types of jaundice and wind-bi (painful obstruction). Physicians of later generations have only used it superficially in dermatology, which is limited.
[Indications]
Treats head wind and jaundice. Cough with reverse flow of qi and dribbling urination. Swelling and pain in the female vagina. Damp-bi causing necrosis of skin and muscle, inability to flex or extend joints, and difficulty walking. Restlessness of the four limbs. Epidemic excessive internal heat with thirst, desire to run, and shout. Pediatric convulsions and epilepsy. Residual pain after childbirth in women. Treats all heat-toxin wind syndromes, aversion to wind, wind-sores, scabies, tinea with redness and ulceration, loss of eyebrows and hair, tightness of skin and muscle, high fever with aversion to cold. Resolves heat-jaundice, alcohol-jaundice, acute jaundice, grain-jaundice, and labor-jaundice. Unblocks joints, benefits the nine orifices and blood vessels. Promotes water metabolism in the Small Intestine. Treats epidemic febrile diseases, headache, and eye pain. The flowers have similar efficacy. Treats pulmonary cough.
[Incompatibilities]
Contraindicated with Piao Xiao (Mantispidae Ootheca), Jie Geng (Platycodon Root), Fu Ling (Poria), and Bi Xie (Dioscorea Hypoglauca Rhizome).
[Xuanjinhua]
[Flavor and Nature]
Salty, warm, slightly toxic. Enters the Hand-Taiyin Lung and Hand-Yangming Large Intestine meridians.
[Indications]
Its functions are limited to promoting water metabolism, directing rebellious qi downward, and unblocking blood vessels. If the patient has deficiency patterns, this herb disperses too vigorously and should not be used, as it may cause cold-induced diarrhea due to laxative effects on the Large Intestine. Treats epigastric stiffness and fullness with persistent belching after sweating or purging in Shanghan (Cold Damage). Formulas include Qi Wu Xuan Dai Tang (Seven-Ingredient Xuanjinhua and Hematitum Decoction). Treats gynecological conditions with San Wu Xuanjinhua Tang (Three-Ingredient Xuanjinhua Decoction). Treats phlegm-fluid retention causing distension and fullness in the hypochondrium. Formula includes Xuanjinhua Wan (Xuanjinhua Pills). All these illustrate the principle of draining and unblocking. Users must examine carefully.