\r大青\pd172.bmp\r
味苦，大寒，无毒。主疗时气头痛，大热口疮。三、四月采茎，阴干。
陶隐居云∶疗伤寒方多用此，《本经》又无。今出东境及近道。长尺许，紫茎。除时行
热毒
为良。唐本注云∶大青用叶兼茎，不独用茎也。臣禹锡等谨按药性论云∶大青，臣，味甘
。
能去大热，治温疫，寒热。日华子云∶治热毒风，心烦闷渴疾，口干，小儿身热疾，风疹，
天行热疾及金石药毒，兼涂 肿毒。
图经曰∶大青，旧不载所出州土，今江东州郡及荆南，眉、蜀、濠、淄诸州皆有之。春
生青
紫
茎似石竹，苗、叶、花红紫色似马蓼，亦似芫花。根黄。三月、四月采茎、叶，阴干用。古
方∶治伤寒，黄汗，黄胆等有大青汤，又治伤寒头身强，腰脊痛。葛根汤亦用大青。大抵时
疾药多用之。
\r女萎\pd173.bmp\r
味辛，温。主风寒洒洒，霍乱泄痢，肠鸣游气上下无常，惊痫寒热百病，出汗。李氏
本草云∶止下，消食。
唐本注云∶其叶似白蔹，蔓生，花白，子细。荆、襄之间名为女萎，亦名蔓楚。止痢有
效。
图经文具萎蕤条下。
雷公云∶凡采得，阴干，去头并白蕊，于槐砧上锉，拌豆淋酒蒸。从巳至未出，晒令干
用。
大青
味苦，性大寒，无毒。主治时行疫病引起的头痛，以及高热导致的口疮。在三月、四月采集茎部，阴干备用。
陶隐居说：治疗伤寒的方剂中多用此药，《神农本草经》中却没有记载。现在产于东部边境及邻近地区。长约一尺左右，茎呈紫色。去除时行热毒效果良好。《唐本草》注解说：大青使用叶子兼用茎，不单独只用茎。臣禹锡等人按照《药性论》记载：大青，作为臣药，味甘。能清除大热，治疗温疫，以及寒热往来。日华子说：治疗热毒风邪，心烦闷渴之疾，口干，小儿身体发热之疾，风疹，天行热疾（流行性热病）以及金石药物中毒，兼可外涂肿毒。
《图经》说：大青，旧籍未记载其出产州土，现在江东各郡及荆南，眉州、蜀州、濠州、淄州等地都有生长。春天生出青紫色的茎，形状像石竹；苗、叶、花呈红紫色，像马蓼，也像芫花。根是黄色的。三月、四月采集茎和叶，阴干使用。古方中：治疗伤寒、黄汗、黄疸等有大青汤，又治疗伤寒引起的头身强直、腰脊疼痛。葛根汤中也使用大青。大致上治疗时行疫病的药物多用到它。
女萎
味辛，性温。主治风寒引起的洒洒恶寒，霍乱泄痢，肠鸣游气上下无常，惊痫寒热百病，以及出汗。李氏本草说：止泻，消食。
《唐本草》注解说：它的叶子像白蔹，蔓生，花白色，果实细小。荆州、襄阳之间称为女萎，也叫蔓楚。止痢有效。
《图经》内容详细记载在“萎蕤”条目下。
雷公说：凡是采得后，阴干，去掉头部和白色的蕊，在槐木砧板上切碎，拌入豆淋酒蒸制。从巳时到未时取出，晒干使用。
Da Qing (Indigo Naturalis)
Bitter, extremely cold, non-toxic. Primarily treats headache caused by epidemic febrile diseases and mouth ulcers resulting from high fever. Harvest the stems in the third and fourth months, and dry them in the shade.
Tao Hongjing stated: This herb is frequently used in formulas for treating Shanghan (Cold Damage), although it is not recorded in the *Shennong Bencao Jing* (Divine Farmer's Materia Medica). It is currently produced in eastern borders and nearby regions. The stems are about one chi long and purple. It is excellent for eliminating heat toxins from epidemic diseases. The *Tang Bencao* commentary notes: Da Qing uses both leaves and stems, not just stems alone. Chen Yuxi et al., according to the *Yaoxing Lun* (Treatise on Drug Properties), state: Da Qing, as a minister drug, has a sweet taste. It can eliminate severe heat, treat Wenyi (warm epidemic diseases), and alternating chills and fever. Ri Huazi stated: It treats wind-heat toxin, mental restlessness with thirst, dry mouth, pediatric fever, wind-rash, Tianxing Reji (epidemic febrile diseases), and toxicity from metallic/mineral drugs; it can also be applied externally to sores and swellings.
The *Tujing* (Illustrated Classic) states: Da Qing was not previously recorded regarding its place of origin. Currently, it grows in various commanderies in Jiangdong, Jingnan, and prefectures such as Meizhou, Shuzhou, Haozhou, and Zizhou. In spring, green-purple stems emerge, resembling Dianthus; the seedlings, leaves, and flowers are red-purple, resembling Polygonum perfoliatum (Ma Liao), or also resembling Genkwa Flos (Yuan Hua). The roots are yellow. Harvest stems and leaves in the third and fourth months, and use after drying in the shade. Ancient formulas: For treating Shanghan, Huanghan (yellow sweat), and Huangdan (jaundice), there is Da Qing Tang (Indigo Decoction); it also treats head and body stiffness, and lower back and spine pain caused by Shanghan. Gegen Tang (Kudzu Decoction) also uses Da Qing. Generally, medicines for epidemic diseases often include it.
Nüwei (Caulis Cissampi)
Pungent, warm. Primarily treats aversion to cold with shivering due to wind-cold, cholera-like diarrhea and dysentery, intestinal murmurs with wandering qi moving up and down unpredictably, epilepsy and convulsions with alternating chills and fever from various ailments, and sweating. Li Shi's Materia Medica states: It stops diarrhea and promotes digestion.
The *Tang Bencao* commentary notes: Its leaves resemble Ampelopsis japonica (Bai Lian), it grows as a vine, has white flowers, and small fruits. Between Jingzhou and Xiangyang, it is called Nüwei, also known as Man Chu. It is effective for stopping dysentery.
The content of the *Tujing* is detailed under the entry for Weirui (Polygonatum odoratum).
Lei Gong stated: After harvesting, dry in the shade, remove the head and white stamens, chop on a locust wood cutting board, mix with Doulin Jiu (soybean-leavened wine), and steam. Take out from Si hour to Wei hour, and sun-dry for use.