诸鳔皆可造成，但海鱼多以石首鳔作之，江鱼多以乌贼鱼肠作之，大抵皆滋阴养不足者也。
鳔胶，治赤白崩中，折伤出血。敷阴疮 疮，疗瘀血吐血肾虚腰痛遗精白浊，产后
血衰搐搦，虚人筋骨痹痛。
主治（痘疹合参） 鲫鱼，主胃弱不食，调中下气，水谷不调，禁泄利。解痘疮。
主治（痘疹合参） 乌鱼煎汤服，能治久疟，煎汤浴小儿，可稀痘毒。
一名天鼠。性喜夜出食蚊，故屎中淘出细沙，皆未化蚊眼也，所以主明目，治目盲
障翳，取其气类相从。真味辛寒，乃入足厥阴经。辛能散，内外结滞，寒能除血热气
壅，专于明目耳。
伏翼，逐五淋而利水道，明双目以拨翳云，久服延年无忧，令人喜乐媚好，目血点
眼，夜视有光。粪名夜明砂，烧灰酒服，下胎孕已死腹中，炒过酒调，治瘰瘰延生颈
上，捣散少拌饭食，又治小儿无辜主疗虽多，功专明目。
得金水之气，味咸，气平，有小毒。入手太阴、足少阴经，属阴。能补水之上源，
则肺肾皆得所养，劳热咳嗽自除，邪物鬼气自去，且下输膀胱，则水道自通矣。出于广
西横州，牝牡上下自呼累日情恰，乃交两相抱负堕地，人捕亦不知觉，以手分辟虽死不
开，乃用熟稿草细缠，蒸过曝千，售之，炼为房中之药，甚效。寻常捕者不论雌雄但可
为杂药用耳，其性最护昔其尾，见人欲取之，多自啮断其尾，人即舍之，故取之者须
存其尾，则用之力大，其毒在眼。凡用须去眼及甲上尾上腹上肉毛，以酒浸透，隔两重
纸暖焙，令干以瓷器盛，悬屋东角上，一夜用之，力可十倍，勿伤去尾。
蛤蚧，雌雄并用，主肺虚声咳无休，治肺痿血咯不己，传尸劳疰悉逐，着体邪魅咸
祛，仍通月经更利水道。
所有的鱼鳔都可以加工制成胶，但海鱼大多用石首鱼的鱼鳔制作，江鱼大多用乌贼鱼的肠子制作，大体上都是滋阴补虚的药物。
鳔胶，治疗赤白带下及崩漏，折伤出血。外敷阴部疮疡，治疗瘀血、吐血、肾虚腰痛、遗精、白浊，产后血虚引起的抽搐痉挛，体虚者的筋骨痹痛。
主治（参考《痘疹合参》）：鲫鱼，主治胃弱食欲不振，调理中焦、降逆气，水谷不化，止泻痢。解除痘疮毒邪。
主治（参考《痘疹合参》）：乌鱼煎汤服用，能治疗久疟；煎汤给小儿洗澡，可使痘毒稀发。
伏翼又名天鼠。性喜夜间出来吃蚊子，所以其粪便中淘出的细沙，都是未消化的蚊子眼睛，因此主治明目，治疗目盲障翳，这是取其气味类别相从的原理。其味辛、性寒，归足厥阴肝经。辛能发散，消除内外的结滞；寒能清除血热和气机壅滞，专门用于明目。
伏翼，能驱逐五种淋证并通利水道，明亮双目以去除翳膜云遮，长期服用延年益寿且无忧患，使人心情喜悦、容貌美好。将伏翼的血点入眼中，可改善夜视能力，使夜间视物有光。其粪便名为夜明砂，烧成灰后用酒送服，可排出腹中已死的胎孕；炒过后用酒调服，治疗颈部长出的瘰疬结核；捣碎后少量拌饭食用，又治疗小儿“无辜疳”病。虽然主治功效很多，但专长在于明目。
蛤蚧得金与水之气，味咸，气平，有小毒。归手太阴肺经和足少阴肾经，属阴。能滋补水之上源（即肺），则肺肾都能得到滋养，劳热咳嗽自然消除，邪气和鬼气自然去除，并且向下输注膀胱，则水道自然通畅。产于广西横州，雌雄上下互相呼唤累日，情意融洽，于是交配时相互拥抱堕地，人捕捉它们也不知觉，用手分开即使死了也不松开。人们用熟稻草细细缠绕，蒸过后晒干出售，炼制成房中用药，效果很好。寻常捕捉的不论雌雄，只可作为杂药使用。它的习性最爱护尾巴，见人想要抓取它，多会自断其尾，人们便放弃它。所以取用时须保留尾巴，则药效更大，其毒性在眼睛。凡是用蛤蚧，必须去掉眼睛以及指甲、尾巴上、腹部上的肉毛，用酒浸透，隔两层纸暖焙至干，用瓷器盛装，悬挂在屋子东角，过一夜再使用，药效可增强十倍，不要损伤去掉尾巴。
All fish bladders can be processed into glue, but those from sea fish are mostly made from the swim bladder of *Sciaenidae* (Sturgeon/Croaker family), while those from river fish are mostly made from the intestines of cuttlefish. Generally, they are all yin-nourishing and deficiency-supplementing substances.
Bladder glue treats red and white leukorrhea with metrorrhagia, bleeding due to fractures or injuries. Applied externally to yin sores, it treats blood stasis, hematemesis, kidney deficiency with lower back pain, spermatorrhea, and cloudy urine. It treats postpartum blood deficiency causing spasms and convulsions, and bi-syndrome pain in tendons and bones in deficient individuals.
Main indications (referencing *Dou Zhen He Can*): Crucian carp (*Carassius auratus*) treats weak stomach and anorexia, regulates the middle jiao, directs rebellious qi downward, addresses indigestion of water and grain, and stops diarrhea. It resolves toxin from smallpox/rash.
Main indications (referencing *Dou Zhen He Can*): Decoction of snakehead fish (*Channa argus*) taken orally can treat chronic malaria; decoction used for bathing children can help disperse rash toxins.
Fuyi is also known as Tian Shu. It prefers to emerge at night to eat mosquitoes, so fine sand found in its feces consists of undigested mosquito eyes. Therefore, it treats brightening the eyes and curing blindness with nebula, based on the principle of sympathetic resonance of qi and form. Its taste is pungent and nature is cold, entering the Foot Jueyin Liver Meridian. Pungency can disperse internal and external stagnation; coldness can clear blood heat and qi congestion, specifically serving to brighten the eyes.
Fuyi expels the five types of strangury and promotes urination, brightens the eyes to remove nebula and cloudiness, prolongs life when taken long-term without worry, induces joy and beauty. Applying its blood to the eyes improves night vision, allowing light perception in darkness. Its feces are named Yeming Sha (Night-brightening Sand). Burned to ash and taken with wine, it expels dead fetuses retained in the uterus. Stir-fried and mixed with wine, it treats scrofula extending to the neck. Crushed and mixed with a small amount of rice food, it treats infant "Wugu" malnutrition syndrome. Although it has many indications, its specialty lies in brightening the eyes.
Gejie acquires the qi of Metal and Water, tastes salty, has a neutral nature, and is slightly toxic. It enters the Hand Taiyin Lung Meridian and Foot Shaoyin Kidney Meridian, belonging to Yin. It can supplement the upper source of water (Lung), thereby nourishing both Lung and Kidney, eliminating labor-fever cough, removing pathogenic factors and evil qi, and conducting downwards to the Bladder, thus unblocking the water pathways. It originates from Hengzhou, Guangxi. Males and females call to each other for days, mating by embracing and falling to the ground; humans can catch them unaware. Even if separated by hand after death, they do not open. They are wrapped tightly in cooked straw, steamed, sun-dried, and sold, refined into sexual tonics with great efficacy. Commonly caught specimens, regardless of sex, serve only as miscellaneous medicines. Its nature most protects its tail; seeing humans attempt to take it, it often bites off its own tail, causing humans to abandon it. Thus, retainers must keep the tail to maximize efficacy. The toxicity resides in the eyes. When used, eyes, scales, tail meat/hair, and abdominal hair must be removed. Soak thoroughly in wine, warm-dry between two layers of paper until dry, store in porcelain jars, hang in the east corner of the house for one night before use; this increases efficacy tenfold. Do not damage or remove the tail.
Gejie uses both male and female. It treats continuous cough due to Lung deficiency, bloody expectoration in Lung萎 (Lung atrophy/withering), expels corpse-transmission tuberculosis, removes evil spirits attaching to the body, regulates menstruation, and promotes urination.