（本经下品）
【气味】苦平，无毒。
【主治】主浸淫疥瘙疽痔，杀三虫。
【核】曰∶出东莱山谷，所在有之。春仲蔓延布地，好生道旁，苗似瞿麦，弱茎促节，
节紫赤似钗股，叶细绿似堇竹，节间出花甚细，微青黄，或淡红色，似蓼蓝花状，遂结细实，
根
【 】曰∶景福殿赋云∶爰有禁扁。徐云∶门户封署也，以所治形证诠名耳。盖八万四
千毛孔，孔孔应开阖为门户，如浸淫疥瘙诸形证，此毛孔唯封， 蓄引蔓促节，节节开花，
若封而辟，辟而封，虽象形从治法，亦象形对待法也。
（火热刑金，成浸淫疥瘙者相宜，若痘疹痤痱，隐显欲出者，与毛孔闭实，欲扬液为汗
者亦宜。但气味苦平，施之严寒为本气者，功力少逊；若病反其本，中标之阳，或已成则为
病热，表邪尚未入里，仍欲从枢解散者，为效颇速。）
（本经下品）
【气味】苦寒，有小毒。
【主治】主杀三虫，逐毒瓦斯、胃中热，利丈夫，不利女子。
【核】曰∶出石城山谷，及汉中、建平、宜都、房州、金州诸处。生竹林土中，乃竹之
余气，零落所成也。无苗蔓，不相连，状如粟，又如猪苓而圆，皮黑肉白，甚坚实。修事，
用甘草水浸一宿，取出，蒸之，从巳至未，日干。酒拌润，再蒸之，日干用。荔实、浓朴、
蒿根、芫花为之使，恶葛根。
【 】曰∶雷丸，竹苓也。具节候之灵气，零落复震，故名雷丸。盖雷之发声，物无不
同时而应，故与三虫毒瓦斯向晦者反。其味苦，其气寒，对待胃热为因，诸热若伏若匿者，亦
相宜矣。利丈夫，不利女子者，震为雷，长男也。所谓方以类聚，物以群分，刚柔断而吉凶
生矣。
（凡物有质成，有气结，如茯苓之本乎松，雷丸之因乎竹是也。木之耐岁寒，实而坚多
节者，唯松性善隐伏，故遗苓名之；草之能冬生，虚而苍KT 色者唯竹，象切震雷，故转
丸名之，其气类所感，一静一动，一秉大夫贞洁之操，一展君子奋杨之力，其功用各有致也。）
【《神农本草经》列为下品】
【气味】味苦，性平，无毒。
【主治】主要治疗浸淫疮、疥癣、疽疮、痔疮，能杀灭肠道寄生虫（三虫）。
【考证】曰：产于东莱的山谷中，各地都有出产。仲春时节蔓延铺地，喜欢生长在道路旁边，幼苗像瞿麦，茎细弱且节短促，节部呈紫红色像发钗的股部，叶子细长翠绿像堇竹，节间开出的花非常细小，颜色微青黄或淡红色，形状像蓼蓝的花，随后结出细小的果实，根部……
【按语】曰：景福殿赋中说：“这里有禁扁。”徐广注释说：“禁扁是指门户上的封条和署记，是根据所治疗的形态和证候来命名的。”大概人体有八万四千个毛孔，每个毛孔都像门户一样应合着开阖的功能，像浸淫疮、疥癣等这些形态的证候，这些毛孔唯独闭塞不通。雷丸蔓延生长，节短促，节节开花，就像封闭后又开启，开启后又封闭，这虽然是取象比类从治法角度解释，也是取象比类对待法的体现。（火热之邪刑克肺金，形成浸淫疥癣者适宜使用；如果是痘疹、痤疮、痱子，隐现欲出者，以及毛孔闭塞坚实，想要发散津液为汗者也同样适宜。但因其气味苦平，若施用于以严寒为本气的病症，功力稍显逊色；如果病势反其本气，中伤阳气，或者已经化热成为病热，表邪尚未入里，仍然想要通过枢机解散者，疗效颇快。）
【《神农本草经》列为下品】
【气味】味苦，性寒，有小毒。
【主治】主要杀灭肠道寄生虫（三虫），驱除毒瓦斯、胃中热，对男子有利，对女子不利。
【考证】曰：产于石城山谷，以及汉中、建平、宜都、房州、金州等地。生长在竹林的土壤中，是竹子的余气，零落积聚而成的。没有苗蔓，不相连结，形状像粟米，又像猪苓而圆润，皮黑肉白，非常坚实。炮制方法：用甘草水浸泡一夜，取出，蒸制，从巳时到未时，晒干。用酒拌润，再蒸制，晒干后使用。荔实、厚朴、蒿根、芫花作为它的引经药（使之），畏葛根。
【按语】曰：雷丸，就是竹苓。具备节令的灵气，零落后又震动生成，所以名叫雷丸。大概雷声发出时，万物没有不同时感应的，所以它与在昏暗时刻活动的三虫毒瓦斯相反。它的味道苦，性质寒，针对胃热作为病因，各种潜伏隐匿的热邪也适宜使用。对男子有利，对女子不利的原因在于：震卦代表雷，象征长男。所谓方剂以类别聚集，事物以群体区分，刚柔判定则吉凶产生。（大凡物体有由质料构成的，有由气凝结而成的，如茯苓根本源于松树，雷丸因竹子而生就是这样。树木中能耐受岁寒，果实坚实多节的，只有松树的性质善于隐伏，所以遗留了“苓”的名字；草本植物中能冬季生长，中空而苍翠颜色的，只有竹子，形象切合震雷，所以转变成“丸”的名字，它们的气类所感应到的，一静一动，一个秉持大夫贞洁的操守，一个展现君子奋发昂扬的力量，它们的功能各有侧重。）
(Ben Jing Xia Pin)
[Flavor and Nature] Bitter, neutral, non-toxic.
[Indications] Primarily treats oozing sores (Jinyin), scabies (Sao), carbuncles (Ju), and hemorrhoids; kills three types of intestinal parasites (San Chong).
[Verification] It is said: It originates from the valleys of Donglai and is found everywhere. In mid-spring, it spreads over the ground, preferring to grow by roadsides. The seedling resembles Dianthus superbus (Qumai), with a weak stem and short nodes. The nodes are purple-red like the shaft of a hairpin. The leaves are slender and green, resembling bamboo. Flowers emerge between the nodes, very fine, slightly yellowish-green or pale red, resembling the flowers of Polygonum tinctorium (Baolan). It then bears small fruits, and the root...
[Commentary] It is said: The Jingfu Palace Fu states: "Here there are forbidden tablets." Xu Guang commented: "Forbidden tablets refer to seals and inscriptions on doors and gates, named according to the morphological manifestations and syndromes treated." Generally, the human body has 84,000 pores, each acting as a gate corresponding to opening and closing. For morphological syndromes such as oozing sores and scabies, these pores are exclusively sealed. Lingzhi (Polyporus umbellatus) spreads and creeps, with short nodes and flowers blooming at every node, resembling sealing and unsealing, unsealing and sealing. Although this is an explanation based on the method of treating by simulating morphology (Xiang Xing Cong Zhi Fa), it also reflects the method of opposing morphology (Xiang Xing Dui Dai Fa). (It is suitable for conditions caused by Fire-Heat punishing Metal, resulting in oozing sores and scabies; it is also suitable for acne, pustules, and heat rash that are hidden and about to erupt, as well as cases where pores are closed and solid, desiring to disperse fluids into sweat. However, due to its bitter and neutral flavor, its efficacy is slightly inferior when applied to conditions where Cold is the fundamental nature; if the disease opposes its fundamental nature, injuring Yang Qi, or has already transformed into Heat, while exterior pathogens have not yet entered the interior and still desire to be resolved through the pivot mechanism, the effect is quite rapid.)
(Ben Jing Xia Pin)
[Flavor and Nature] Bitter, cold, slightly toxic.
[Indications] Primarily kills three types of intestinal parasites (San Chong), expels toxic vapors, clears stomach heat; beneficial for men, detrimental to women.
[Verification] It is said: It originates from the valleys of Shicheng, as well as Hanzhong, Jianping, Yidu, Fangzhou, and Jinzhou. It grows in the soil of bamboo forests, formed from the residual Qi of bamboo, accumulating from fallen parts. It lacks stems and vines, does not connect, resembles millet grains, and is round like Polyporus (Zhu Ling), with black skin and white flesh, very solid. Processing method: Soak in Licorice water (Gancao Shui) overnight, take out, steam from Si hour to Wei hour, dry in the sun. Mix with wine to moisten, steam again, dry in the sun for use. Litchi fruit (Lishi), Magnolia bark (Houpo), Artemisia root (Haogen), and Genkwa flower (Yuanhua) act as its guides (Shi); it is incompatible with Kudzu root (Gegen).
[Commentary] It is said: Lei Wan is Zhu Ling. It possesses the spiritual energy of seasonal changes, falling and then vibrating to regenerate, hence the name Lei Wan. When thunder sounds, all things respond simultaneously, thus it opposes the three parasites and toxic vapors that are active in darkness. Its flavor is bitter, its nature is cold, making it suitable for stomach heat as the cause, and various latent or hidden heat syndromes. It is beneficial for men but detrimental to women because the Zhen trigram represents Thunder and symbolizes the eldest son. As stated, formulas gather by category, and things group by kind; determining hardness and softness generates auspiciousness and inauspiciousness. (Generally, substances are formed by material quality or condensed by Qi, such as Poria (Fuling) originating from pine trees, and Lei Wan arising from bamboo. Among trees, those enduring winter cold, with solid and knotty fruits, only Pine possesses the nature of hiding, hence retaining the name "Ling"; among herbs, those growing in winter, hollow and verdant, only Bamboo fits the image of Zhen Thunder, hence transforming into the name "Wan". Their Qi categories resonate differently: one is static, upholding the integrity of a scholar-official; the other is dynamic, displaying the vigorous power of a gentleman. Their functions have their respective emphases.)