味甘，平，无毒。久服轻身，延年，不老。此属余粮壳中，未成余粮黄浊水也
。出余粮处有之。陶云∶芝品中有石中黄子，非也。（新附）
味甘，寒、平，无毒。主咳逆，寒热、烦满，下赤白，血闭、症瘕、大热，疗小腹
痛结烦疼。练饵服之，不饥、轻身、延年。一名白余粮。生东海池泽，及山岛中或池泽中
。
今多出东阳，形如鹅鸭卵，外有壳重叠，中有黄细末如蒲黄，无沙者为佳。近年茅山凿
地大得之，极精好，乃有紫
华靡靡。《仙经》服食用之。南人又呼平泽中有一种藤，叶如菝 ，根作块有节，似菝 而
色赤，根形似薯蓣，谓为禹余
粮。言昔禹行山乏食，采此以充粮，而
者，即是太一也。张华云∶
池多蓼者，
必有余粮，今庐江间便是也。适有人于铜官采空青于石坎，大得黄赤色石，极似今之余粮，
而色过赤好，疑此是太一也。彼人呼为雌黄，试涂物，正如雄黄色尔。
〔谨案〕陶云∶“黄
赤色石，疑是太一。”既无壳裹，未是余粮，疑谓太一，殊非的称。
味辛，平，有毒。主镇精神，坚骨髓，通利五脏，除邪毒瓦斯，服之神仙。生益州，采
无时。
金之所生，处处皆有，梁、益、宁三州及建晋多有，出水沙中，作屑，谓之生金。辟恶
而有毒，不炼服之杀人。建、
晋亦有金沙，出石中，烧熔鼓铸为埚，虽被火亦未熟，犹须更炼。又高丽、扶南及西域外国
成器，金皆炼熟可服。《仙经》
以KT 、蜜及猪肪、牡荆、酒辈炼饵柔软，服之神仙。亦以合水银作丹砂外，医方都无用，
当是犹虑其毒害故也。《仙
方》名金为太真。
【石中黄子】
味甘，性平，无毒。长期服用可使人身体轻盈，延长寿命，延缓衰老。这种药材属于禹余粮外壳内部，是尚未形成禹余粮的黄色浑浊液体。在出产禹余粮的地方可以找到。陶弘景说：芝草品类中有石中黄子，这是不对的。（新收录）
【禹余粮】
味甘，性寒、平，无毒。主治咳嗽气逆，寒热往来，心中烦闷胀满，下痢赤白脓血，经血闭阻，癥瘕积聚（腹内结块），大热症，治疗小腹部疼痛结滞烦疼。经过炼制后服用，可以使人不感饥饿，身体轻盈，延长寿命。又名白余粮。产于东海的池泽以及山岛或池泽之中。
现在多产自东阳，形状像鹅鸭蛋，外层有重叠的壳，内部有黄色的细粉状物如同蒲黄，没有沙粒的为佳品。近年茅山开凿地面大量获得此药，品质极精好，甚至有紫色的光泽柔美动人。《仙经》记载作为服食药物使用。南方人又称呼平原沼泽中有一种藤本植物，叶子像菝葜，根部呈块状且有节，类似菝葜但颜色发红，根的形状像山药，称之为禹余粮。传说昔日大禹巡行山中缺乏食物，采集这种植物来充饥，而所谓的“太一”就是指它。张华说：池塘中如果有很多蓼草，那里一定有余粮，现在的庐江地区就是这样。恰好有人在铜官的石坑中开采空青时，大量得到黄红色的石头，非常像现在的余粮，但颜色更红更好，怀疑这就是太一。当地人称之为雌黄，试着涂抹物品，颜色正如雄黄一样。
[谨案] 陶弘景说：“黄赤色的石头，怀疑是太一。”既然没有壳包裹，就不是余粮，怀疑说是太一，确实不是确切的称呼。
【金屑】
味辛，性平，有毒。主要作用是镇摄精神，坚固骨髓，通利五脏，祛除邪毒之气，服用后可成神仙。产于益州，采集没有时间限制。
金的产地，到处都有，梁州、益州、宁州及建晋等地很多，从水沙中产出，呈碎屑状，称为生金。具有辟除邪恶的作用但有毒，不经过炼制服用会致人死亡。建晋也有金沙，出自石头中，烧熔铸造为容器，虽然经过火炼但未完全成熟，仍然需要再次炼制。另外高丽、扶南及西域外国制成的器具，金子都经过炼制成熟可以服用。《仙经》用金屑、蜂蜜以及猪脂肪、牡荆、酒等物炼制饵剂使其柔软，服用后可成神仙。除了与水银混合制作丹砂外，医方中都没有其他用途，这大概是还顾虑其毒性危害的缘故。《仙方》称金为太真。
[Shizhong Huangzi (Yellow Substances in Stone)]
Sweet in taste, neutral in nature, non-toxic. Long-term consumption can make the body feel light, prolong life, and retard aging. This substance belongs to the interior of the shell of Yuyuliang (Haematitum), which is the yellow turbid liquid before it forms into Yuyuliang. It is found in places where Yuyuliang is produced. Tao Hongjing stated that Shizhong Huangzi exists within the category of Zhi (Lingzhi/Ganoderma), which is incorrect. (Newly added)
[Yuyuliang (Haematitum)]
Sweet in taste, cold and neutral in nature, non-toxic. It primarily treats cough with inverted qi, alternating chills and fever, mental restlessness and fullness, dysentery with red and white discharge, amenorrhea (blood closure), zhengjia masses (abdominal masses), high fever, and alleviates painful stagnation in the lower abdomen. After processing and taking it, one will not feel hungry, the body becomes light, and life is prolonged. Also known as Bai Yuliang (White Yuyuliang). It grows in the pools and marshes of the East Sea, as well as in mountain islands or within pools and marshes.
Currently, it is mostly produced in Dongyang. Its shape resembles goose or duck eggs, with overlapping shells on the outside and fine yellow powder resembling Puhuang (Tylphae Pollen) inside; those without sand are considered superior. In recent years, large quantities of extremely high-quality specimens with a graceful purple luster were obtained by excavating the ground at Maoshan. The "Xian Jing" (Scripture of Immortals) records its use for ingestion. People in the south also refer to a vine growing in flat marshes, whose leaves resemble Bqie (Smilax glabra), and whose rhizomes are nodular and tuberous, similar to Bqie but reddish in color, with roots resembling Dioscorea, calling it Yuyuliang. They claim that when Yu the Great traveled through the mountains and lacked food, he gathered this plant to sustain himself, and what is referred to as "Taiyi" is indeed this plant. Zhang Hua said: "Where there are many Polygonum hydropiper (Liao) in ponds, there must be Yuyuliang," which is the case in the Lujiang region. Recently, someone mining Kongqing (Azurite) in stone pits at Tongguan found large amounts of yellow-red stones that closely resembled current Yuyuliang but were even redder and better, suspecting them to be Taiyi. Locals called them Xihuang (Realgar-like Orpiment); testing them by smearing on objects yielded a color exactly like Xionghuang (Realgar).
[Note] Tao Hongjing said: "The yellow-red stone is suspected to be Taiyi." Since it lacks a shell wrapping, it is not Yuyuliang; suspecting it to be Taiyi is indeed an imprecise designation.
[Jin Xie (Gold Dust/Flakes)]
Pungent in taste, neutral in nature, toxic. It primarily calms the spirit, strengthens the bone marrow, promotes the free flow of the five zang organs, eliminates pathogenic toxic vapors, and consumption leads to immortality. It is produced in Yizhou, and can be harvested at any time.
Sources of gold are ubiquitous. Liangzhou, Yizhou, Ningzhou, and Jianjin have abundant supplies. Extracted from river sands, appearing as flakes, it is called Sheng Jin (Raw Gold). It has the property of warding off evil but is toxic; consuming it unrefined can be fatal. Jianjin also produces Jin Sha (Gold Sand) from rocks, which is smelted and cast into crucibles; although fired, it is not yet fully mature and requires further refining. Additionally, gold vessels from Goguryeo, Funan, and other Western Regions countries are all refined and suitable for consumption. The "Xian Jing" describes refining gold dust with honey, pork fat, Vitex negundo, and wine to create soft pills for ingestion, leading to immortality. Apart from being combined with mercury to make Cinnabar (Dan Sha), it is rarely used in medical prescriptions, likely due to concerns about its toxicity. The "Xian Fang" (Immortal Prescriptions) refers to gold as Taizhen.