（《纲目》）
【释名】红豆。
时珍曰∶按∶《古今诗话》云∶相思子圆而红。故老言∶昔有人殁于边，其妻思之，哭
于树下而卒，因以名之。此与韩凭冢上相思树不同，彼乃连理梓木也。或云即海红豆之类，
未审的否？
【集解】时珍曰∶相思子生岭南。树高丈余，白色。其叶似槐，其花似皂荚，其荚似扁
豆。其子大如小豆，半截红色，半截黑色，彼人以嵌首饰。段公路《北户录》言∶有蔓生，
用子收龙脑香相宜，令香不耗也。
【气味】苦，平，有小毒，吐人。
【主治】通九窍，去心腹邪气，止热闷头痛，风痰瘴疟，杀腹脏及皮肤内一切虫，除蛊
毒。取二七枚研服，即当吐出（时珍）。
【附方】新三。
瘴疟寒热∶相思子十四枚，水研服，取吐立瘥。（《千金》）。
猫鬼野道∶眼见猫鬼，及耳有所闻。用相思子、蓖麻子、巴豆各一枚，朱砂（末）、蜡
各
四铢，合捣丸如麻子大，含之。即以灰围患人，面前着一斗灰火，吐药入火中，沸即画十字
于火上
解中蛊毒∶《必效方》∶用未钻相思子十四枚，杵碎为末。温水半盏，和服。欲吐抑之勿
吐，少顷当大吐。轻者但服七枚。非常神效。（《外台秘要》）。
（《纲目》）
【集解】时珍曰∶猪腰子生柳州。蔓生结荚，内子大若猪之内肾，状酷似之，长三、四
寸，色紫而肉坚。彼人以充土宜，馈送中土。
【气味】甘、微辛，无毒。
【主治】一切疮毒及毒箭伤，研细，酒服一、二钱，并涂之（时珍）。
(From *Bencao Gangmu*)
[Names] Hongdou (Red Bean).
Li Shizhen states: According to *Gujin Shihua* (Ancient and Modern Poetry Talks), Xiangsi Zi (Abrus precatorius seed) is round and red. Folklore says: In the past, a person died at the border; his wife missed him deeply, cried under a tree until she died, and thus it was named "Xiangsi" (Love/Yearning). This differs from the Xiangsi Tree on Han Ping's tomb, which refers to interlaced catalpa wood. Some claim it is similar to *Ormosia hosiei* (Sea Red Bean), but it is uncertain if this is accurate.
[Description] Li Shizhen states: Xiangsi Zi grows in the Lingnan region. The tree is over one zhang tall, with white bark. Its leaves resemble those of the locust tree (*Robinia pseudoacacia*), its flowers resemble those of the soap pod (*Gleditsia sinensis*), and its pods resemble those of the hyacinth bean (*Lablab purpureus*). The seeds are the size of small beans, half red and half black, and locals use them to inlay jewelry. Duan Gonglu, in *Buhu Lu*, mentions a vine species; using its seeds to collect borneol is suitable as it prevents the loss of fragrance.
[Properties and Flavor] Bitter, neutral, slightly toxic, induces vomiting.
[Indications] Opens the nine orifices, expels evil qi from the heart and abdomen, relieves headache caused by heat and oppression, treats wind-phlegm and malarial fevers due to miasma, kills all parasites within the abdominal organs and skin, and removes gu poison. Take fourteen seeds, grind them, and ingest; vomiting will occur immediately (Li Shizhen).
[Prescriptions] Three new prescriptions included.
Treating Malarial Fevers with Chills and Heat: Grind fourteen Xiangsi Zi seeds in water and ingest to induce vomiting; recovery follows immediately. (From *Qianjin Fang*).
Treating Cat-Ghost and Wild Pathogenic Influences: When seeing cat-ghosts or hearing strange noises. Use one each of Xiangsi Zi, Ricinus communis seed (Bimazi), and Croton tiglium seed (Badou), along with four zhu of Cinnabar powder (Zhusha) and wax. Pound together into pills the size of sesame seeds and hold in the mouth. Surround the patient with ash, place a bucket of burning ash fire before them, throw the pill into the fire; when it boils, draw a cross on the fire to resolve the gu poison.
Resolving Gu Poison: From *Bixiao Fang*: Use fourteen unperforated Xiangsi Zi seeds, pound into powder. Mix with half a cup of warm water and ingest. Suppress the urge to vomit initially; after a short while, severe vomiting will occur. For mild cases, take only seven seeds. Extremely effective. (From *Waitai Miyao*).
(From *Bencao Gangmu*)
[Description] Li Shizhen states: Zhu Yaozi grows in Liuzhou. It is a vine that produces pods; the seeds inside are as large as a pig's kidney, resembling it closely, three to four cun long, purple in color, and firm in texture. Locals treat it as a local specialty and gift it to the Central Plains.
[Properties and Flavor] Sweet, slightly pungent, non-toxic.
[Indications] Treats all types of sores, toxins, and venomous arrow wounds. Grind finely, take one to two qian with wine, and apply topically (Li Shizhen).