味苦。性平。有小毒。得酒良。畏桔梗、麦冬。
【主治】主五痔阴肿痛引腰背。阴蚀下血赤白。五色血汁不止。（本经） 疗腹痛疝积。
烧灰
（甄权） “ 肉”主反胃。炙黄食。（藏器）
【归经】入胃经。为凉血之品。
【前论】寇氏曰。 皮治胃逆。开胃气有功。
【炮制】时珍曰。 黑存性。一云。细锉炒黑用。
以上泻剂禽兽部
味涩。性寒。无毒。得人参、牛黄良。畏石膏、铁器。
【主治】主大人惊痫诸痉。癫疾狂走。心下结气。不能喘息。小儿五惊十二痫。（本经）
小
儿身热不可近。大人骨间寒热。治蛊毒。杀精物。（别录） 治烦闷狂热鬼魅。（日华）
【归经】入心肝二经。为镇心安魂。除烦清热之品。
【前论】仲淳曰。龙骨入心肝肾肠。龙齿单入心肝。故骨兼有止泻涩精之用。齿惟定惊
安
魂
【禁忌】经疏曰。龙齿禁忌。约与骨相似。
以上泻剂鳞部
味甘咸。性寒。无毒。禀太阴之精气而结成。降也。阴也。
【主治】主手足皮肤逆胪。镇心。绵裹塞耳。主聋。敷面令人润泽好颜色。粉点目中。
主肤
胞衣。点
【归经】入心肝二经。为泄热定惊之品（水精所孕水能制火故专治火热症）
【前论】陆佃曰。蛤蚌无阴阳牝牡。须雀化成。故能生珠。专一于阴精也。 庵曰。
虽
云
假
【禁忌】经疏曰。凡病。不由火热者忌。
【刺皮】
味苦。性平。有小毒。得酒良。畏桔梗、麦冬。
【主治】主五痔阴肿痛引腰背。阴蚀下血赤白。五色血汁不止。（本经） 疗腹痛疝积。
烧灰
（甄权） “肉”主反胃。炙黄食。（藏器）
【归经】入胃经。为凉血之品。
【前论】寇氏曰。 皮治胃逆。开胃气有功。
【炮制】时珍曰。 黑存性。一云。细锉炒黑用。
以上泻剂禽兽部
【龙齿】
味涩。性寒。无毒。得人参、牛黄良。畏石膏、铁器。
【主治】主大人惊痫诸痉。癫疾狂走。心下结气。不能喘息。小儿五惊十二痫。（本经）
小
儿身热不可近。大人骨间寒热。治蛊毒。杀精物。（别录） 治烦闷狂热鬼魅。（日华）
【归经】入心肝二经。为镇心安魂。除烦清热之品。
【前论】仲淳曰。龙骨入心肝肾肠。龙齿单入心肝。故骨兼有止泻涩精之用。齿惟定惊安魂
【禁忌】经疏曰。龙齿禁忌。约与骨相似。
以上泻剂鳞部
【真珠】
味甘咸。性寒。无毒。禀太阴之精气而结成。降也。阴也。
【主治】主手足皮肤逆胪。镇心。绵裹塞耳。主聋。敷面令人润泽好颜色。粉点目中。
主肤
胞衣。点
【归经】入心肝二经。为泄热定惊之品（水精所孕水能制火故专治火热症）
【前论】陆佃曰。蛤蚌无阴阳牝牡。须雀化成。故能生珠。专一于阴精也。 庵曰。
虽
云
假
【禁忌】经疏曰。凡病。不由火热者忌。
[Ci Pi]
Bitter in taste. Neutral in nature. Slightly toxic. Beneficial when combined with wine. Averse to Platycodonis Radix (Jiegeng) and Ophiopogonis Radix (Maidong).
[Indications] Primarily treats five types of hemorrhoids with swelling and pain radiating to the lower back. Treats genital erosion with bleeding, discharge of red and white blood, and continuous bleeding of five-colored bloody fluid. (*Ben Jing*) Treats abdominal pain and hernia masses.
Burned to ash.
(Zhen Quan) "Meat" treats retrograde vomiting. Roasted until yellow and eaten. (Zang Qi)
[Meridian Tropism] Enters the Stomach Meridian. It is a substance that cools the blood.
[Preliminary Discussion] Kou Zhi said: Ci Pi treats stomach rebellion and has merit in opening stomach qi.
[Processing] Li Shizhen said: Charred while retaining its properties. Another method says: Finely chopped and stir-fried until black for use.
End of the Poultry and Beast Category of Draining Formulas.
[Long Chi - Dragon Teeth]
Astringent in taste. Cold in nature. Non-toxic. Beneficial when combined with Ginseng Radix et Rhizoma (Renshen) and Calculus Bovis (Niuhuang). Averse to Gypsum Fibrosum (Shigao) and ironware.
[Indications] Primarily treats adult convulsions, epilepsy, various spasms, manic epilepsy with running about, constrained qi under the heart, and inability to breathe. Treats the five frights and twelve types of epilepsy in children. (*Ben Jing*)
Treats children with high fever who cannot be approached by others. Treats alternating cold and heat in the bones of adults. Treats gu poison. Kills spirit entities. (*Bie Lu*) Treats irritability, mania, and demonic influences. (Ri Hua)
[Meridian Tropism] Enters the Heart and Liver Meridians. It is a substance that calms the mind, anchors the soul, removes irritability, and clears heat.
[Preliminary Discussion] Zhong Chun said: Long Gu enters the Heart, Liver, Kidney, and Intestines. Long Chi enters only the Heart and Liver. Therefore, Long Gu also has the function of stopping diarrhea and astringing essence, while Long Chi only settles fright and anchors the soul.
[Contraindications] Chen Jiu said: The contraindications for Long Chi are approximately similar to those of Long Gu.
End of the Scale Category of Draining Formulas.
[Zhen Zhu - Pearl]
Sweet and salty in taste. Cold in nature. Non-toxic. Formed by inheriting the essential qi and spirit of Taiyin. Descending. Yin in nature.
[Indications] Primarily treats inverted skin on hands and feet. Calms the heart. Wrapped in cotton and stuffed into the ear to treat deafness. Applied to the face to make the skin lustrous and improve complexion. Powder applied to the eyes.
Treats skin...
Placenta. Dots...
[Meridian Tropism] Enters the Heart and Liver Meridians. It is a substance that drains heat and settles fright (Water essence nurtures it; water can control fire, thus it specializes in treating heat-fire syndromes).
[Preliminary Discussion] Lu Tian said: Clams and mussels lack yin and yang, male and female. They require transformation by sparrows to generate pearls. Thus, they focus solely on yin essence. An said:
Although
said
fake
[Contraindications] Chen Jiu said: Contraindicated for all diseases not caused by heat-fire.