味甘，气大温。无毒。产初者良，勿嫌妇瘦；产多者次，务择妇肥。男病觅女胎有
功，女病求男胎获效。一说不必拘泥，随得俱可补人。入急水中，洗净筋膜。或新瓦烘皱成
块，（新瓦二片，仰覆盖盛，铁线扎牢，盐泥固密，低驾垆上，文火烘之，时或倒颠，免致
焦黑，从辰至申，自渐干皱成块也。）或密甑蒸烂杵膏。（小甑栉密，蒸一昼夜才得糜烂，杵
膏。）块者可久留，研末入剂；膏者须即用，搀蜜为丸。余药所宜，凭证加灭。疗诸虚百损
，痨瘵传尸；治五劳七伤，骨蒸潮热。喉咳音哑，体瘦发枯。吐衄来红，并堪制服。得多煮
食，（煮熟食，与猪肚味同。）滋补尤佳。又益妇人，俾育胎孕。罐贮埋于地内，年深自化清
泉。此名河车水也。驱天行时疫狂言，去小儿丹疹热毒。
（谟）按∶紫河车即胞衣也。儿孕胞内，脐系于胞，胞系母腰，受母之荫。父精母血，
相合生
成，真元气之所钟也。然名河车者，盖以天地之先，阴阳之祖。乾坤之橐吁，铅汞之匡廓。
胚胎将兆，九九数足。儿则载而乘之，故取象而立名也。紫者红黑相杂色也，红属火为阳，
黑属水为阴。谓其阴阳两气并具，而不杂尔。稽诸古方，又曰混沌皮，又曰混元丹。所加混
字，抑非与紫同一意乎。是则河车虽成后天之形，实禀先天之气。入药拯济，诚夺化工。不
惟病者可得苏生，弱妇服之亦易结孕。此又本所自出，以类相从，正如哺鸡而用卵也。即今
医方竟名大造丸，明以生育拟天，玄妙无可及矣。
味甘，气大温。无毒。产自初产妇的胎盘品质优良，不要嫌弃产妇瘦弱；产自多产者的次之，务必选择身体丰腴的产妇。男子患病寻找女胎（女性胎盘）有功效，女子患病寻找男胎（男性胎盘）能获效。有一种说法认为不必拘泥于此，只要得到均可用于补益人体。将其放入急流水中，洗净筋膜。或者用新瓦片烘烤至起皱成块，（取两片新瓦，仰面覆盖盛放，用铁丝扎牢，用盐泥密封固定，低置于炉灶上，用微火烘烤，时常翻转，避免烤焦变黑，从辰时到申时，自然逐渐干燥起皱成为药块。）或者用细密的甑蒸烂后捣成膏状。（小甑孔隙细密，蒸煮一昼夜才能糜烂，再捣成膏。）块状的可以长期保存，研成粉末入药；膏状的必须立即使用，掺入蜂蜜制成丸剂。其余药物的配伍，根据证候加减。治疗各种虚损劳伤，痨瘵传尸；治愈五劳七伤，骨蒸潮热。咽喉咳嗽声音嘶哑，身体消瘦头发枯槁。吐血衄血，都能控制制服。煮食较多，（煮熟食用，味道与猪肚相同。）滋补效果尤其好。又能增益妇人，使易于孕育胎儿。装入罐中埋于地下，年代久远自然化为清泉。这名叫河车水。驱除天行时疫导致的胡言乱语，去除小儿丹疹的热毒。
（陈嘉谟）按语：紫河车就是胞衣。胎儿在胞宫内孕育，脐带系于胞衣，胞衣系于母亲腰部，承受母亲的荫庇。父精母血，相互结合生成，是真元气汇聚的地方。然而名为“河车”的原因，大概是因为天地形成之前，阴阳的始祖。乾坤的囊橐，铅汞的外廓。胚胎即将显现，九九之数已足。胎儿则承载并乘坐它，所以取象而立名。“紫”是红黑相杂的颜色，红色属火为阳，黑色属水为阴。说它阴阳二气兼具，而不混杂。考察古代方书，又叫做混沌皮，又叫做混元丹。所加的“混”字，难道不是与“紫”同一意旨吗？这样看来，河车虽然形成了后天的形体，实际上禀受了先天的之气。入药救治，确实夺得了造化的神奇。不仅病人可以得到复苏，体弱的妇女服用也容易结孕。这又是本其所出，以类相从，正如喂养小鸡而用鸡蛋一样。现在的医方竟然命名为大造丸，明确以生育比拟天道，玄妙无可比拟了。
Sweet in taste, great in warming qi. Non-toxic. The placenta from a primipara is of good quality; do not disdain the mother for being thin. That from a multipara is inferior; one must select mothers who are plump. For men's diseases, seeking female placentas (placenta) is effective; for women's diseases, seeking male placentas (placenta) yields results. One theory states that there is no need to be rigid; whatever is obtained can be used for tonification. Place it in fast-flowing water, wash clean the fascia and membranes. Alternatively, bake it on new tiles until wrinkled into blocks. (Use two new tiles, place them facing up to hold the material, tie firmly with iron wire, seal tightly with salt mud, place low on the stove, bake with gentle fire, turn occasionally to prevent charring, from Chen hour to Shen hour, it gradually dries and wrinkles into blocks.) Or steam it in a fine-meshed steamer until soft and mushy, then pound into paste. (A small steamer with dense holes, steamed for a full day and night to become mushy, then pounded into paste.) Blocks can be stored for a long time and ground into powder for use; paste must be used immediately, mixed with honey to form pills. Other medicinal ingredients should be added or subtracted according to the syndrome. It treats various deficiencies and hundred damages, tuberculosis and corpse-transmission disease; cures five labors and seven injuries, bone-steaming tidal fever. Hoarse cough, emaciation, and dry hair. Hematemesis and epistaxis can all be controlled. Boiled and eaten in quantity, (cooked and eaten, tasting similar to pig stomach), its nourishing effect is especially excellent. It also benefits women, facilitating conception. Stored in jars and buried underground, after many years it naturally transforms into clear spring water. This is named Heche Water. It drives away delirious speech caused by epidemic pestilence, and removes heat-toxin from infant erysipelas.
(Chen Jiamo) Commentary: Zihewu (Placenta Hominis) is the fetal membrane. The fetus develops within the membrane, the umbilical cord attaches to the membrane, and the membrane attaches to the mother's waist, receiving the mother's protection. Father's essence and mother's blood combine to generate it; it is where true Yuan Qi gathers. However, the reason it is named "Heche" (River Chariot) is likely because before heaven and earth existed, it was the ancestor of Yin and Yang. The bag of Qian and Kun, the casing of Lead and Mercury. When the embryo is about to appear, the number of ninety-nine is complete. The fetus carries and rides upon it, hence the name is derived from imagery. "Zi" (Purple) refers to the color mixed of red and black. Red belongs to Fire and is Yang; Black belongs to Water and is Yin. It is said to possess both Yin and Qi without mixing them. Examining ancient prescriptions, it is also called Hundun Pi (Chaotic Skin) and Hunyuan Dan (Primordial Pill). Does the added character "Hun" (Mixed/Primordial) not share the same meaning as "Zi"? Thus, although Heche has formed the shape of Post-Heaven, it actually inherits the Qi of Pre-Heaven. Entering medicine to save lives, it truly rivals the work of creation. Not only can patients recover, but weak women taking it can easily conceive. This again originates from its source, following similarity, just as using eggs to feed chickens. Current medical formulas name it Dazao Wan (Great Creation Pill), explicitly comparing reproduction to Heaven, profound and beyond comparison.