治恶阻。
清半夏（一两，温水淘洗两次毫无矾味然后入煎） 净青黛（三钱） 赤石脂（一两）
用作饭小锅，煎取清汁一大碗，调入蜂蜜二两，徐徐温饮下。一次只饮一口，半日服尽。若服后吐仍未
止或其大便燥结者，去石脂加生赭石（轧细）一两。若嫌青黛微有药味者，亦可但用半夏、赭石。
或问，《神农本草经》谓赭石能坠胎，此方治恶阻，而有时以赭石易石脂，独不虑其有坠胎之弊乎？答
曰∶恶阻之剧者，饮水一口亦吐出，其气化津液不能下达。恒至大便燥结，旬余不通。其甚者，或结于幽门
（胃下口）、栏门（大小肠相接处），致上下关格不通，满腹作疼，此有关性命之证也。夫病既危急，非大力
之药不能挽回。况赭石之性，原非开破。其镇坠之力，不过能下有形滞物。若胎至六七个月，服之或有妨碍∶
至恶阻之时，不过两三个月，胎体未成，惟是经血凝滞，赭石毫无破血之性，是以服之无妨。且呕吐者，其冲
气胃气皆上逆，借赭石镇逆之力，以折其上逆之机，气化乃适得其平，《内经》所谓“有故无殒亦无殒也”。
愚治恶阻之证，遇有上脘固结，旬日之间勺饮不能下行，无论水与药，入口须臾即吐出。群医束手诿谓不治。
而愚放胆重用生赭石数两，煎汤一大碗，徐徐温饮下。吐止、结开、便通，而胎亦无伤（拙拟参赭镇气汤及赭
石解下，载有详案可考也）。
清半夏（一两，用温水淘洗两次直至完全没有矾味，然后入药煎煮） 净青黛（三钱） 赤石脂（一两）
使用做饭的小锅，煎取澄清的药汁一大碗，调入蜂蜜二两，慢慢温热服用。每次只喝一口，半天内服完。如果服药后呕吐仍未停止，或者大便干燥结滞的，去掉赤石脂，加入生赭石（轧成细粉）一两。如果觉得青黛带有轻微的药味，也可以只用半夏和赭石。
有人问：《神农本草经》说赭石能导致堕胎，这个方子治疗恶阻，有时用赭石代替赤石脂，难道不担心它有堕胎的危害吗？回答说：恶阻严重的患者，喝一口水也会吐出来，体内的气化和津液不能向下输布。常常导致大便干燥结滞，十几天不通畅。更严重的，可能会阻塞在幽门（胃的下口）、栏门（大小肠相接处），导致上下气机格拒不通，满腹疼痛，这是关乎性命的危急证候。既然病情危急，非大力度的药物不能挽回。况且赭石的药性，原本就不是攻破之品。它的镇坠之力，不过只能下行排出有形的积滞物。如果胎儿已经六七个月大，服用它或许会有妨碍；但在恶阻发作时，胎儿才两三个月大，胎体尚未形成，只是经血凝滞，赭石完全没有破血的功效，所以服用它没有妨害。而且呕吐的患者，冲脉之气和胃气都向上逆乱，借助赭石镇压逆气的力量，来折损其向上逆乱的势头，气化才能恰好恢复平衡，《内经》所说的“有故无殒，亦无殒也”（有病则病受之，不会伤害人体）。我治疗恶阻的病症，遇到上脘部固结阻滞，十天之内连一勺水都不能下行，无论喝水还是吃药，入口片刻就会吐出。众医生束手无策，推脱说无法医治。而我大胆重用生赭石数两，煎汤一大碗，慢慢温热服用。呕吐停止、结滞解开、大便通畅，而胎儿也没有受伤（我自己拟定的参赭镇气汤以及关于赭石的解说，在书中载有详细医案可供考证）。
Treating hyperemesis gravidarum (nausea and vomiting during early pregnancy).
Qing Banxia (Pinelliae Rhizoma Praeparatum, 1 liang [approx. 37.5g], rinsed twice with warm water until no alum taste remains, then decocted) Jing Qingdai (Indigo Naturalis, 3 qian [approx. 11.25g]) Chishizhi (Halloysit Rubra, 1 liang [approx. 37.5g])
Decoct in a small pot used for cooking rice to obtain one large bowl of clear liquid. Mix in 2 liang [approx. 75g] of honey. Drink slowly while warm. Take only one mouthful at a time, finishing the dose within half a day. If vomiting persists after taking the medicine, or if there is dry fecal impaction, remove Chishizhi and add Sheng Zheishi (Raw Haematitum, finely crushed) 1 liang [approx. 37.5g]. If one dislikes the slight medicinal taste of Qingdai, it may be omitted, using only Banxia and Zheishi.
One might ask: The *Shennong Bencao Jing* (Divine Farmer's Materia Medica) states that Zheishi can cause abortion. This formula treats hyperemesis gravidarum, and sometimes substitutes Zheishi for Chishizhi; are you not concerned about the risk of abortion? I reply: In severe cases of hyperemesis gravidarum, even a sip of water is vomited out. The body's qi transformation and fluid metabolism fail to descend. This often leads to dry fecal impaction, remaining unpassed for more than ten days. In extreme cases, obstruction may occur at the Youmen (pylorus, the lower opening of the stomach) or Lanmen (the junction of the large and small intestines), causing blockage of upper and lower qi mechanisms, resulting in full abdominal pain. This is a critical condition endangering life. Since the illness is critical, only potent medicines can reverse it. Moreover, the nature of Zheishi is inherently not dispersing or breaking. Its heavy-settling power serves only to direct downward有形 (有形 - tangible/solid) stagnations. If the fetus is six or seven months old, its use might be contraindicated; however, during the time of hyperemesis gravidarum, the fetus is only two or three months old, and the fetal form has not yet fully developed. At this stage, it is merely a stagnation of menstrual blood. Zheishi has no property of breaking blood stasis, therefore its use causes no harm. Furthermore, in patients who vomit, both the Chong Mai (Penetrating Vessel) qi and Stomach qi rebel upward. Borrowing the settling power of Zheishi to counteract this rebellious upward movement allows qi transformation to return to balance. As stated in the *Neijing* (Inner Canon): "When there is a disease, there is no injury [to the healthy qi]" (You gu wu yun, yi wu yun ye). In my treatment of hyperemesis gravidarum, when encountering solidification in the Shangwan (upper epigastrium), where not even a spoonful of liquid can pass down for ten days, and whatever is ingested—water or medicine—is vomited up shortly after entering the mouth, other physicians have been helpless, declaring it incurable. However, I boldly and heavily prescribe several liang of Raw Zheishi, decocted into one large bowl of soup, which is drunk slowly while warm. Once vomiting stops, the obstruction resolves, and bowel movements resume, the fetus remains uninjured (Detailed case records can be found in my proposed Shen Zhen Zhen Qi Tang [Ginseng and Hematite Decoction to Suppress Rebellious Qi] and the discussion on Zheishi below).