味苦咸。性平。有毒。畏锻石、食盐。
【主治】主逐恶血。瘀血。月闭。破血症积聚。（本经） 堕胎。（别录） 治折伤跌扑
有效。
【归经】入肝膀胱二经。为破血泄结之品。
【前论】无己曰。咸走血。苦胜血。用水蛭以除蓄血。乃肝经血分药。故能去肝经聚血。
即粪中蛆。味甘咸。性寒。无毒。
【主治】主小儿诸疳积。疳疮。热病谵妄。毒痢作吐。（大明）
【归经】入脾胃二经。为去热疗疳之品。（幼科要药）
【前论】宁原曰。粪蛆专能消积。以其健脾扶胃也。积消则饮食停滞之热毒亦清矣。
【炮制】备要曰。凡使。漂极净。晒干。或炒或 为末用。
味苦。性微寒。有毒。降也。阴也。恶麻黄。
【主治】主逐瘀血。破血积。坚痞症瘕。寒热。通利血脉及九窍。（本经） 女子月水
不
通。
【归经】入肝经。兼入三焦经。为破血泄结之品。（肝经血分药）
【前论】河间曰。虻食血而治血。因其性而为用也。 无己曰。苦走血。血结不行者。
以苦
味辛。性寒。微毒。禀土金之精气。上应月魄而生。降也。阴也。
【主治】主邪气。破症坚血。痈肿。阴疮。服之不患热病。疗阴蚀疽疠恶疮。 犬伤疮。
能
一切
子大
腰眼并
（别
捣汁服
【归经】入胃经。为杀虫拔毒之品。（疳积痈疽诸疮要药）
【前论】东垣曰。蟾蜍。土之精也。上应月魄而性灵异。大抵是物能攻毒拔毒。古今诸
方所
蟾蜍
消积
拔疔
水。
浑身水肿。及单腹胀者。青蛙一二枚。去皮。炙。食之。自消。
【炮制】经疏曰。凡使蟾酥。用人乳化开。切不可入人目。若误入。赤肿欲盲。急以紫
草汁
[Leech]
Taste: Bitter, salty. Nature: Neutral. Toxicity: Toxic. Aversion: Damp-stone (calcined gypsum), salt.
[Indications] Primarily expels foul blood and stasis, treats amenorrhea, breaks down masses and accumulations. (Shennong Ben Cao Jing) Induces abortion. (Bencao Jing Jizhu) Effective for treating fractures and falls.
[Meridian Tropism] Enters the Liver and Bladder meridians. It is a substance that breaks blood and resolves stagnation.
[Preliminary Discussion] Li Dongyuan stated: Salty flavors enter the blood aspect; bitter flavors overcome blood. Using leech to eliminate accumulated blood makes it a medicine of the Liver meridian blood aspect, thus it can remove stagnant blood in the Liver meridian.
[Maggot]
Specifically, maggots from feces. Taste: Sweet, salty. Nature: Cold. Toxicity: Non-toxic.
[Indications] Primarily treats various types of infantile malnutrition (Gan syndrome) and Gan sores, delirium during febrile diseases, and vomiting caused by toxic dysentery. (Da Ming Ben Cao)
[Meridian Tropism] Enters the Spleen and Stomach meridians. It is a substance that clears heat and treats Gan syndrome. (Essential Medicine for Pediatrics)
[Preliminary Discussion] Wang Haogu stated: Fecal maggots specialize in eliminating accumulation because they strengthen the Spleen and support the Stomach. Once accumulation is eliminated, the heat and toxins from food stagnation are also cleared.
[Processing] Zhang Yuansu stated: When using this drug, rinse it extremely clean, dry it in the sun, or stir-fry it, or grind it into powder for use.
[Bluebottle Fly Larva]
Taste: Bitter. Nature: Slightly cold. Toxicity: Toxic. Properties: Descending, Yin. Aversion: Ephedrae Herba (Mahuang).
[Indications] Primarily expels blood stasis, breaks blood accumulations, treats hard epigastric fullness and masses, alternating chills and fever, unblocks blood vessels and the nine orifices. (Shennong Ben Cao Jing) Treats female menstrual obstruction.
[Meridian Tropism] Enters the Liver meridian, and concurrently enters the Sanjiao (Triple Burner) meridian. It is a substance that breaks blood and resolves stagnation. (Liver Meridian Blood Aspect Medicine)
[Preliminary Discussion] Liu Wansu stated: Bluebottle flies feed on blood to treat blood disorders, utilizing their nature for therapeutic effect. Li Dongyuan stated: Bitter flavors enter the blood aspect; for cases where blood is knotted and does not flow, bitter flavors...
[Toad]
Taste: Pungent. Nature: Cold. Toxicity: Slightly toxic. It inherits the essence of Earth and Metal. It corresponds to the moon's spirit in its generation. Properties: Descending, Yin.
[Indications] Primarily dispels pathogenic factors, breaks hard masses and blood stasis, treats carbuncles and sores, yin sores. Taking it prevents febrile diseases; it treats erosive ulcers, malignant sores, and dog bite wounds.
[Meridian Tropism] Enters the Stomach meridian. It is a substance that kills parasites and extracts toxins. (Essential Medicine for Gan Syndrome, Carbuncles, Ulcers, and Various Sores)
[Preliminary Discussion] Li Gao stated: The toad is the essence of Earth, corresponding to the moon's spirit with spiritual nature. Generally, this creature can attack and extract toxins, as seen in ancient and modern prescriptions...
[Usage] For eliminating accumulation and extracting toxin nodules: For generalized edema and monadic abdominal distension, use one or two frogs, remove skin, roast, and eat them; the condition will subside naturally.
[Processing] Miao Xiyong stated: When using Chan Su (Toad Venom), dissolve it in human milk. Do not let it enter the eyes. If it accidentally enters, causing redness, swelling, and near blindness, urgently apply Arnebiae Radix et Rhizoma (Zicao) juice...