（亦名束胎散。丹溪。）
妇人妊娠八九月，服数十剂，易生有力（诗云∶诞弥厥月，先生如达。达，小羊也，其
生
当归（酒洗） 芍药（酒炒） 人参 白术（土炒） 陈皮 紫苏（一钱） 甘草（炙，
二钱） 大腹皮（三钱。）入青葱五叶，黄杨脑子七个，煎黄（杨木主产难）。或加枳壳、砂
仁；或春加川
此足太阴、厥阴药也。当归、芍药以益其血，人参、白术以益其气，腹皮、陈皮、紫苏
、葱叶以疏其壅，气血不虚不滞，则临产自无留难之患矣（朱丹溪曰∶产难往往见于郁闷安
乐
予族妹苦于难产，遇胎则触而去之，予甚悯焉，视其形肥而勤于女工，知其气血久坐不运，
儿因母气虚亦不能自运耳，当补母气，则儿健易产，令其有孕五六月，以《大全良方》紫苏
饮加补气药，与之数十帖，得男甚快，因以其方随母之性禀与时令加减，服无不应，因名曰
达生散云。昔湖阳公主难产，方士进瘦胎饮，用枳壳四两炒，甘草二两炙，五月后日服一钱
，洁古改以枳术，名束胎丸，寇宗 明其不然。盖孕妇全赖血气以养胎，血气充实；胎乃易
生，彼公主奉养太过，气实有余，故可服之，若一概滥施，误之甚矣。按∶瘦胎饮又名枳
壳散，治胎肥难产，临月服之。张氏加香附行气宽膈，姜汤下。许学士云∶大率妊娠惟在抑
阳助阴，其方甚多，亦恶群队，枳壳散所以抑阳，四物汤所以养阴，然枳壳散差寒，宜以内
补丸佐之，即当归一两、地黄二两为丸也）。
妇女妊娠八至九个月时，服用数十剂此药，分娩时容易生出有力气的婴儿（《诗经》中说：“满十月之期，生产如羊羔般顺利。”达，即小羊，其出生顺畅）。
药材组成：当归（酒洗）、芍药（酒炒）、人参、白术（土炒）、陈皮、紫苏（一钱）、甘草（炙，二钱）、大腹皮（三钱）。加入青葱五叶、黄杨脑子七个煎煮（黄杨木主治难产）。或者加入枳壳、砂仁；或者春季加入川芎。
此方是足太阴脾经和足厥阴肝经的药物。当归、芍药用来补益血液，人参、白术用来补益气机，大腹皮、陈皮、紫苏、葱叶用来疏通壅滞，使气血不虚也不滞涩，那么临产时自然没有滞留困难的祸患（朱丹溪说：“难产往往发生在心情郁闷或过于安逸的环境中……”）
我的族妹深受难产之苦，每次怀孕到一定时候就流产，我非常怜悯她。观察她形体肥胖且勤于女红，知道她是因久坐导致气血运行不畅，胎儿因为母体气虚也不能自行转动。应当补益母体的气，则胎儿健壮易于分娩。让她在怀孕五六月时，服用《大全良方》中的紫苏饮并加入补气药，服用了数十帖后，顺产一男婴非常顺利。因此根据这位母亲的气质禀赋与时令变化对该方进行加减，服用后无不灵验，因此命名为达生散。
从前湖阳公主难产，有方士进献瘦胎饮，用枳壳四两炒制，甘草二两炙制，五月后每天服用一钱。张洁古将其改为枳术丸，名为束胎丸，寇宗奭指出这种做法是不对的。大概孕妇全赖血气来滋养胎儿，血气充实，胎儿才容易出生。那位公主生活供养太过，气实有余，所以可以服用该方。如果一概滥施，错误就非常严重了。按：瘦胎饮又名枳壳散，治疗胎肥难产，临产前服用。张氏加入香附以行气宽膈，用姜汤送下。许学士说：“大抵妊娠期间重在抑制阳气、辅助阴气，此类方剂很多，但也厌恶药物杂乱堆砌。枳壳散所以能抑制阳气，四物汤所以能滋养阴气，然而枳壳散偏寒，宜以内补丸佐助，即由当归一两、地黄二两制成的丸药）。”
(Also known as Shutai San [Bundling Fetus Powder]. From Zhu Danxi.)
When a woman is eight or nine months pregnant, taking dozens of doses facilitates the delivery of a vigorous infant (The *Book of Songs* states: "Fulfilling the full month, birth occurs as easily as that of a lamb." 'Da' refers to a young sheep, whose birth is smooth).
Ingredients: Danggui (Radix Angelicae Sinensis, washed with wine), Shaoyao (Radix Paeoniae Alba, stir-fried with wine), Renshen (Radix Ginseng), Baizhu (Rhizoma Atractylodis Macrocephalae, stir-fried with earth), Chenpi (Pericarpium Citri Reticulatae), Zisu (Folium Perillae, 1 qian), Gancao (Radix Glycyrrhizae Preparata, honey-fried, 2 qian), Dafupi (Fructus Petiveriae, 3 qian). Add five leaves of green onion and seven seeds of Huangyangnao (Huangyang wood treats difficult labor). Alternatively, add Zhike (Fructus Aurantii) and Sharen (Fructus Amomi); or in spring, add Chuanxiong (Rhizoma Chuanxiong).
This formula consists of herbs belonging to the Foot-Taiyin Spleen Meridian and Foot-Jueyin Liver Meridian. Danggui and Shaoyao nourish blood; Renshen and Baizhu tonify qi; Dafupi, Chenpi, Zisu, and green onion leaves vent stagnation. When qi and blood are neither deficient nor stagnant, there will be no retention or difficulty during parturition (Zhu Danxi said: "Difficult labor often arises from depression or excessive comfort...").
My clan's younger sister suffered greatly from dystocia; whenever she conceived, the fetus was lost. I pitied her deeply. Observing that she was obese yet diligent in needlework, I deduced that prolonged sitting caused stagnation of qi and blood, and the fetus could not move freely due to the mother's qi deficiency. It was necessary to tonify the mother's qi so that the fetus would become robust and delivery easy. I prescribed Zijie Yin (Perilla Decoction) from *Daquan Liangfang* supplemented with qi-tonifying herbs for her to take during the fifth to sixth months of pregnancy. After dozens of doses, she delivered a healthy male infant smoothly. Consequently, I modified this formula according to her constitution and the seasonal changes, finding it universally effective, and thus named it Dasheng San [Reaching Life Powder].
In the past, Princess Huyang suffered from dystocia. A practitioner presented Shoutai Yin [Thin Fetus Decoction], consisting of four liang of stir-fried Zhike and two liang of honey-fried Gancao, taken daily at one qian after the fifth month. Zhang Jiegai modified it into Zhizhu Wan [Atractylodes and Aurantium Pill], naming it Shutai Wan [Bundling Fetus Pill]. Kou Zongshi pointed out that this approach was incorrect. Generally, the fetus relies on qi and blood for nourishment; when qi and blood are substantial, birth is facilitated. The princess had excessive nourishment, resulting in excess qi, making this formula suitable for her. However, indiscriminate application would cause great harm. Note: Shoutai Yin is also known as Zhike San [Aurantium Powder], treating dystocia due to fetal obesity, taken near term. Zhang added Xiangfu (Rhizoma Cyperi) to promote qi movement and widen the diaphragm, taken with ginger decoction. Scholar Xu stated: "Generally, pregnancy management focuses on suppressing yang and assisting yin. There are many such formulas, but one should avoid chaotic combinations. Zhike San suppresses yang, while Siwu Tang [Four Substances Decoction] nourishes yin. However, Zhike San is slightly cold, so it should be assisted by Neibu Wan [Internal Tonification Pill], which consists of one liang of Danggui and two liang of Dihuang prepared as pills)."