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
【水蛭】
味苦、咸。性平。有毒。畏锻石、食盐。
【主治】主要驱逐恶血、瘀血，治疗闭经，破除症瘕积聚。（出自《本经》）堕胎。（出自《别录》）治疗跌打损伤有效。
【归经】入肝、膀胱二经。属于破血泄结的药物。
【前论】李东垣说：咸味走血分，苦味能胜血（制约血）。用水蛭来消除蓄积之血，它是肝经血分的药物，所以能去除肝经聚积之血。
【蛆】
即粪中的蛆虫。味甘、咸。性寒。无毒。
【主治】主要治疗小儿各种疳积、疳疮，热病时的谵妄胡言，毒痢引起的呕吐。（出自《大明本草》）
【归经】入脾、胃二经。属于清热疗疳的药物。（儿科要药）
【前论】王好古说：粪蛆专门能够消除积滞，因为它能健脾扶胃。积滞消除后，饮食停滞产生的热毒也就清除了。
【炮制】张元素说：凡使用此药，需漂洗极干净，晒干，或炒制，或研为粉末使用。
【虻虫】
味苦。性微寒。有毒。属性为降，属阴。恶麻黄。
【主治】主要驱逐瘀血，破除血积，治疗坚硬的痞块、症瘕，寒热往来，通利血脉及九窍。（出自《本经》）女子月经不通。
【归经】入肝经，兼入三焦经。属于破血泄结的药物。（肝经血分药）
【前论】刘完素说：虻虫吸食血液而治疗血病，是顺应其本性而发挥作用。李东垣说：苦味走血分，血结滞不行的情况，用苦味……
【蟾蜍】
味辛。性寒。微毒。禀受土、金二气的精气。上应月魄而生。属性为降，属阴。
【主治】主要祛除邪气，破除症坚血，痈肿，阴疮。服用它不会患热病，治疗阴蚀疽疠恶疮、犬咬伤疮。
【归经】入胃经。属于杀虫拔毒的药物。（疳积痈疽诸疮要药）
【前论】李杲说：蟾蜍是土的精华，上应月魄而性情灵异。大抵这种物能攻毒拔毒，古今各方所……
【用法】消积，拔疔毒。浑身水肿及单腹胀者，用青蛙一二枚，去皮，炙烤，食用，自然消退。
【炮制】缪希雍说：凡使用蟾酥，用人乳化开，切不可入人眼目。若误入，眼睛赤肿欲盲，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...