（宋《嘉 》）
【释名】扁螺。
时珍曰∶蚬， 也。壳内光耀，如初出日采也。《隋书》云∶刘臻父显嗜蚬，呼蚬为扁
螺。
【集解】藏器曰∶处处有之。小如蚌，黑色。能候风雨，以壳飞。
时珍曰∶溪湖中多有之。其类亦多，大小浓薄不一。渔家多食之耳。
肉
【气味】甘、咸，冷，无毒。
藏器曰∶微毒。多食发嗽，及冷气消肾。
【主治】治时气，开胃，压丹石药毒及疔疮，下湿气，通乳，糟煮食良。生浸取汁，洗
疔疮（苏恭）。
华》）。
烂壳
【气味】咸，温，无毒。
【主治】止痢（弘景），治阴疮
食，
除心胸痰水（藏器）。化痰止呕，治吞酸心痛及暴
珍）。
【附方】旧一，新二。
卒嗽不止∶用白蚬壳捣为细末。以熟米饮调，每服一钱，日三服，甚效。（出《圣惠方》）
痰喘咳嗽∶用白蚬壳（多年陈者）烧过存性，为极细末。以米饮调服一钱，日三服。（《急
救方》）
反胃吐食∶用黄蚬壳并田螺壳（并取久在泥中者）各炒成白灰。每田螺壳灰二两，黄蚬
壳
灰一两，入白梅肉四个，同搜拌令匀作团。再入砂盒子内，盖定泥固。 存性，研细末。每
服二钱，用人参、缩砂汤调下。不然，用陈米饮调服亦可。凡觉心腹胀痛，将发反胃，即以
此药治之。（《是斋百一选方》）
(Sourced from the Song Dynasty *Jiayou Bencao*)
[Names] Flat snail.
Li Shizhen says: Xian (Clam) is this type of bivalve. The inside of the shell is smooth and shiny, resembling the light of the rising sun. The *Book of Sui* records: Liu Zhan's father, Liu Xian, had a fondness for eating clams and referred to them as flat snails.
[Collected Explanations] Chen Cangqi says: They are found everywhere. Small like mussels, black in color. They can predict wind and rain, flying with their shells.
Li Shizhen says: They are abundant in streams and lakes. There are many varieties, varying in size and thickness. Fishermen mostly consume them.
Meat
[Properties and Flavors] Sweet, salty, cold nature, non-toxic.
Chen Cangqi says: Slightly toxic. Overconsumption may induce coughing and cause cold qi to damage the kidneys.
[Therapeutic Actions] Treats epidemic febrile diseases (Shiqi), opens the appetite, suppresses toxicity from Dan Shi pills (mineral drugs) and carbuncles, drains dampness, promotes lactation. Best consumed when stewed with fermented grain residue. Freshly soaked juice applied externally to wash carbuncles (Su Gong).
Crushed Shells
[Properties and Flavors] Salty, warm nature, non-toxic.
[Therapeutic Actions] Stops dysentery (Tao Hongjing), treats yin sores, eliminates phlegm-fluid retention in the chest and heart (Chen Cangqi). Resolves phlegm, stops vomiting, treats acid regurgitation, heart pain, and sudden vomiting (Li Shizhen).
[Attached Prescriptions] One old prescription, two new prescriptions.
Sudden persistent cough: Use white clam shells, pounded into fine powder. Mix with cooked rice water for oral administration, one qian per dose, three times daily. Very effective. (From *Taiping Shenghui Fang*)
Phlegm-wheezing and cough: Use white clam shells (preferably aged for many years), calcined to retain their properties, ground into an extremely fine powder. Administer one qian mixed with rice water, three times daily. (*Jijiu Fang*)
Regurgitation and vomiting of food: Use yellow clam shells and river snail shells (both selected from those long buried in mud), stir-fried until they turn into white ash. For every two liang of river snail shell ash, use one liang of yellow clam shell ash. Add four pieces of white plum flesh, mix and knead evenly into balls. Place inside a clay crucible, cover tightly, and seal with mud. Calcine to retain properties, then grind into fine powder. Take two qian per dose, delivered with decoction of Ginseng Radix et Rhizoma and Amomi Fructus Rotundus. Alternatively, taken with aged rice water is also acceptable. Whenever one feels abdominal distension and pain, signaling impending regurgitation, treat immediately with this medicine. (*Shizhai Baiyi Xuanfang*)