主难产，胞衣不出。
陶隐居云∶难产。取弓弩弦以缚腰，及烧弩牙令赤，纳酒中饮之。皆取发放快速之义也。
臣
圣惠方∶耳中有物不可出。用弓弩弦长三寸，打散一头，涂好胶，柱着耳中物处，停之
令
相着，徐徐引出，但取葱管斗于耳门内， 之即出为妙。千金方治妇人始觉有孕，要转女为
男。取弓弩弦一枚，缝袋盛带妇人左臂。续十全方弓弩弦烧灰为末，用酒服二钱匕，主易生。
产宝论云∶滑胎易产，弓弩弦缚心下，立产。房室经忧妊娠欲得男女，觉有孕未盈月。以弓
弩弦为带缚腰中，满三月解却，转女为男，宫中秘法不传出。
\r木贼\pd282.bmp\r
味甘、微苦，无毒。主目疾，退翳膜，又消积块，益肝胆，明目，疗肠风，止痢，及妇
人月水不断，得牛角 、麝香，治休息痢历久不瘥。得禹余粮、当归、芎 ，疗崩中赤白。
得槐鹅、桑耳，肠风下血服之效。又与槐子、枳实相宜，主痔疾出血。出秦、陇、华、成诸
郡近水地。苗长尺许，丛生。每根一秆，无花叶，寸寸有节，色青，凌冬不凋。四月采用之。
（新定）
图经曰∶木贼，生秦、陇、同、华间。味微苦，无毒，主明目，疗风，止痢。所生山谷
近水地有之。独茎，苗如箭 ，无叶，长一、二尺，青色，经冬不枯，寸寸有节，采无时。
今医用之最多，其治肠痔多年不瘥，下血不止方∶木贼、枳壳各二两，干姜一两，大黄一分，
四味
广利方治泻血不止。木贼十二分，切，以水一升八合，煎取八合，去滓。空心温分二服，
如
衍义曰∶木贼，细锉，微微炒，捣为末，沸汤点二钱，食前服，治小肠、膀胱气，缓缓
服必效。
Indicated for difficult labor (Nanchan) and retention of the placenta (Baoyi).
Tao Hongjing stated: For difficult labor. Take bowstrings to bind around the waist, or burn the arrowhead (Nuya) until red-hot and drink it in wine. Both methods are based on the meaning of releasing and moving quickly.
The Minister [Tang Shenwei] cites *Shenghui Fang*: For a foreign body in the ear that cannot be removed. Take a three-cun long bowstring, fray one end, apply good glue, press against the location of the foreign body in the ear, let it adhere, and slowly pull it out. It is best to insert an onion tube into the ear canal as a guide; this method is optimal for extraction. *Qianjin Fang* treats a woman who just feels pregnant and wishes to change the gender from female to male. Take one bowstring, sew it into a pouch, and wear it on the woman's left arm. *Xu Shiquan Fang* records burning bowstrings into ash, making them into powder, and taking two qianbi with wine to facilitate easy delivery. *Chanbao Lun* states: To promote smooth delivery, bind the area below the heart with a bowstring for immediate birth. *Fangshi Jing* mentions anxiety regarding pregnancy and desiring a specific gender. Upon feeling pregnant but less than one month along, use a bowstring as a belt to bind the waist. Remove it after three months to change a female fetus to male. This is a secret palace method not transmitted outside.
*Muye* (Equisetum hiemale)
Sweet, slightly bitter, non-toxic. Indicated for eye diseases, resolving pterygium (Yimó), eliminating accumulations, benefiting the Liver and Gallbladder, brightening the eyes, treating intestinal wind (Changfeng), stopping dysentery, and addressing continuous menstrual bleeding in women. Combined with Ox Horn Calcined Ash (Niujiao Tan) and Musk (Shexiang), it treats chronic rest dysentery (Xiuxi Li). Combined with Hematitum (Yuyuliang), Angelicae Sinensis Radix (Danggui), and Ligusticum Chuanxiong Rhizoma (Xiong), it treats metrorrhagia with red and white discharge (Bengzhong Chi Bai). Combined with Sophora Japonica Seed (Huai'e) and Auricularia Auricula-Judae (Sanger), it is effective for intestinal wind with hematochezia. It is also suitable with Sophora Japonica Seed (Huai Zi) and Immature Bitter Orange (Zhishi) to treat hemorrhoidal bleeding. It grows near water in Qin, Long, Hua, and Cheng commanderies. The seedling is about one chi long, growing in clumps. Each stem has nodes at every inch, is green, and does not wither in winter. Harvested in April. (Newly defined)
*Tujing* states: *Muye* grows between Qin, Long, Tong, and Hua. Slightly bitter, non-toxic, indicated for brightening the eyes, treating wind pathogens, and stopping dysentery. Found in valleys near water. It has a single stem, the seedling resembles an arrow shaft, has no leaves, is one to two chi long, green, does not wither in winter, has nodes at every inch, and can be harvested at any time. Currently used most frequently by physicians. For treating chronic intestinal hemorrhoids and persistent hematochezia that have not healed for years: *Muye* and Aurantium Immaturum (Zhiqiao) each 2 liang, Dried Ginger (Ganjiang) 1 liang, Rheum Palmatum Rhizoma (Dahuang) 1 fen...
*Guangli Fang* treats persistent bloody diarrhea. *Muye* 12 fen, sliced, decocted in 1 sheng 8 he of water to obtain 8 he, strain. Take warm, divided into two doses on an empty stomach...
*Yanyi* states: *Muye*, finely cut, lightly stir-fried, pounded into powder. Mix 2 qian with boiling water, take before meals. Treats Qi stagnation in the Small Intestine and Bladder. Slow consumption will surely be effective.