（本经上品）
经云∶骨气以精，谨道如法，长有天命。
【气味】咸寒，无毒。
【主治】主伤寒寒热，温疟洒洒，惊恚怒气，除拘缓鼠 ，女子带下赤白。久服强骨节，
杀邪鬼，延年。
【核】曰∶出东海池泽，及南海、广、闽、永嘉、海旁皆有之。初生时，假水沫傍石，
向日者渐结成形，大如拳石，四面渐长至数丈，或数十丈。 如房，房多左顾，崭岩如山，
联系不动，房中有肉，大者如马蹄，小者如指面，名曰蛎黄。潮来房开，潮去房阖，阖时纳
小虫以充腹。一种形圆如龟壳，大小皆夹砂石。丈夫服之令无髭也。修治∶每用左顾者二十
四枚，以东流水一斗，入盐二两，煮一伏时，再入火中 赤，研粉，以琥珀吸引，随手便起。
先人云∶牡蛎单生无偶，而左顾者，当属一阳，故本经所主，皆少阳所生病也。然须水饮之
因，成坚固之象者，始相合也。又评药云∶假无成有，泡幻立坚，水中之金，关津之键。
【 】曰∶此湿生也。湿以合感，敛水之融，摄山之结，合感成形者也。但 联系，
坚固不迁，宛若山水之附赘悬疣耳。其启闭候潮，诚应开阖之关键，阴阳之枢纽者，故名牡。
牡者，门牡也。蛎者，金坚之用也。味咸气寒，体于水而用于水，不离水相故尔。伤寒寒热
者，一阳枢象之是动。温疟洒洒者，一阳枢象之所生；惊恚怒气者，一阳上逆之从开；带下
赤白者，一阳下逆之不阖；拘缓鼠 者，一阳之不能从开从阖也。所谓门牡自亡，则开阖不
得。久服强骨节者，假水融结，俨如人骨，象形巽入，骨气以精。杀邪鬼者，奇生无偶，玉
衡左旋，生阳偏胜，阴屈自敛。延年者， 留成丹，饵之则仙，水凝为质，自可延年。
（有言百岁雕所化，则亦化生矣。然百岁雕不易得，何牡蛎之多也。如雀之为蛤，特一
端之变现，非尝也。
牡，有因无牝而名者，有因不生子蔓而名者，有生子而根乃生苗而名者。此属湿生，亦
属化生，即谓无雄亦可。段成式以牡丹驳之，又谓无目，更何顾盼，不知情意之所向即为顾，
岂必定以目视，此皆拘执不圆通，不可以格物论古者。天道左旋，蛎房左顾，揆度奇衡，道
在于一，枢机之象乎。所主诸疾，咸属去来不定，盖去来不定，正从开从阖之枢象也。不独
入少阳，亦入少阴矣。故《内经》鼠 淡阴 疟淋露之疾，皆名曰寒热病，则本经寒热两字，
当贯通章，枢机之义，昭然可见矣。）
（《神农本草经》列为上品）
经文说：骨骼精气充盈，遵循正道合乎法度，就能长久享有天命。
【气味】味咸，性寒，无毒。
【主治】主要治疗伤寒引起的寒热往来，温疟发作时战栗发抖，惊恐、愤恨、愤怒等情绪引起的气机逆乱，消除肢体拘挛或弛缓及鼠瘰（颈部淋巴结结核），女子赤白带下。长期服用能强健骨节，驱除邪祟，延年益寿。
【考证】曰：产于东海池泽，以及南海、广州、福建、永嘉、海边等地都有。初生时，借水沫依附在石头旁，向阳的一面逐渐凝结成形，大如拳头石块，四面逐渐生长至数丈，甚至数十丈。形状像房舍，房舍多向左倾斜，高耸险峻如山，彼此连接不动，房舍中有肉，大的像马蹄，小的像手指面，名叫蛎黄。潮水来时房舍打开，潮水退去房舍闭合，闭合时摄入小虫以充饥腹。还有一种形状圆如龟壳，大小都夹杂砂石。男子服用它能使胡须脱落。炮制方法：每次选用向左倾斜的二十四枚，用一斗东流水，加入二两盐，煮一个时辰（约两小时），再放入火中烧至通红，研磨成粉，用琥珀吸引，粉末随即被吸起。祖先曾说：牡蛎单独生长没有配偶，而向左倾斜的，应当属于一阳之象，所以《本经》所主治的病证，都是少阳经所生的疾病。然而必须结合水饮的因素，形成坚固的形象，才相符合。又评价药物说：假无成有，泡幻立坚，水中的金，关津的钥匙。
【释义】曰：这是湿生之物。湿气相互感应，收敛水的融合，摄取山的凝结，感合而成形。但彼此联系，坚固不迁移，宛如山水附着的赘疣。它的启闭顺应潮汐，确实应验了开阖的关键，阴阳的枢纽，所以名叫“牡”。牡，就是门闩。蛎，是金坚硬的功用。味咸气寒，形体属水而作用在水，不离水相的缘故。伤寒寒热，是一阳枢象的变动；温疟战栗，是一阳枢象所产生；惊恐愤怒，是一阳上逆从开泄而出；带下赤白，是一阳下逆不能闭合；拘挛弛缓和鼠瘰，是一阳不能从开也不能从阖。所谓门闩自行消失，则开阖不得其宜。长期服用强健骨节，借助水的融结，俨然像人的骨头，取象于巽卦而入，使骨气精纯。驱除邪鬼，因为奇生无偶，玉衡左旋，生阳偏胜，阴气屈曲自然收敛。延年益寿，因为停留成为丹药，服用则成仙，水凝结为体质，自然可以延年。（有人说百岁雕鸟所化，那也是化生。然而百岁雕不易得到，为什么牡蛎这么多呢？如同雀鸟变成蛤蜊，只是其中一种变现，并非常态。）
牡，有的因为没有雌性而得名，有的因为没有生子蔓延而得名，有的因为生子后根乃生苗而得名。这属于湿生，也属于化生，即使说没有雄性也可以。段成式以此驳斥牡丹，又说没有眼睛，还看什么顾盼，不知道情意所向即为顾盼，岂一定非要用眼睛看，这些都是拘泥固执不通达，不可以用来格物论古。天道左旋，蛎房左顾，揣度奇衡，道在于一，是枢机的象征吧。所主治的各种疾病，都属于来去不定，而来去不定，正是从开从阖的枢机象征。不仅入少阳经，也入少阴经了。所以《内经》中鼠瘰、淡阴、疟疾、淋露等疾病，都叫做寒热病，那么《本经》中的寒热二字，应当贯通全章，枢机的意义，昭然可见了。）
(Shennong Bencao Jing, Upper Grade)
The Classic states: When bone qi is refined and one strictly follows the Dao in accordance with method, one can long enjoy the mandate of heaven.
[Flavor and Nature] Salty, cold, non-toxic.
[Indications] Primarily treats chills and fever due to Shanghan (Cold Damage), the shivering sensation of Wen Nue (Warm Malaria), sudden fright, resentment, and anger; eliminates stiffness or flaccidity and Shu Luo (scrofula); treats red and white leukorrhea in women. Long-term consumption strengthens bones and joints, expels evil spirits, and prolongs life.
[Verification] It says: Produced in the ponds and marshes of the East Sea, as well as in the South Sea, Guangzhou, Fujian, Yongjia, and coastal areas. Initially, it relies on water foam attached to rocks, gradually forming shapes on the side facing the sun, large as fist-sized stones, growing from all sides to several zhang, or even dozens of zhang. The shape resembles houses, often leaning to the left, towering like cliffs, connected and immovable. Inside the "houses" is meat, large ones like horse hooves, small ones like finger surfaces, named Li Huang (oyster meat). When the tide comes, the houses open; when it recedes, they close, capturing small insects to fill the belly during closure. Another variety is round like a turtle shell, mixed with sand and gravel of various sizes. Men who consume it will have no beard. Processing: Use twenty-four specimens leaning to the left each time, boil them in one dou (approx. 2 liters) of east-flowing water with two liang of salt for one fushi (approx. 2 hours), then place them in fire until red hot, grind into powder, attract with amber, and the powder rises immediately. Ancestors said: Oysters grow alone without a pair, and those leaning to the left belong to the image of One Yang. Therefore, the diseases treated in the Bencao Jing are all those generated by Shaoyang (Lesser Yang). However, it must combine with the factor of water fluids to form a solid image to be compatible. Another evaluation of the drug states: Creating existence from nothing, establishing firmness through illusory bubbles; it is the metal within water, the key to passes and ferries.
[Interpretation] It says: This is a product of dampness generation. Dampness interacts mutually, condensing the fusion of water and absorbing the consolidation of mountains, forming shape through mutual interaction. Yet, they are connected, firm and unshifting, resembling warts hanging on mountains and rivers. Their opening and closing follow the tides, truly responding to the key of opening and closing, the pivot of Yin and Yang, hence named "Mu" (Male/Door Bolt). "Mu" refers to the door bolt. "Li" refers to the function of hard metal. Salty flavor and cold nature, its body belongs to water while its function operates in water, because it does not depart from the water phase. Chills and fever of Shanghan are the movement of the One Yang pivot; shivering of Warm Malaria is what the One Yang pivot generates; fright and anger are the upward reversal of One Yang following opening; red and white leukorrhea is the downward reversal of One Yang failing to close; stiffness/flaccidity and Shu Luo are the inability of One Yang to follow either opening or closing. If the door bolt disappears, opening and closing cannot occur properly. Long-term consumption strengthens bones and joints; borrowing the melting and knotting of water, it resembles human bones, taking the image of Xun (Wind/Wood) entering, refining bone qi. Expelling evil spirits occurs because it grows uniquely without a pair, the Jade Balance rotates left, Sheng Yang (Generating Yang) prevails excessively, and Yin naturally contracts. Prolonging life happens because it remains to become elixir; consuming it leads to immortality; water congeals into substance, naturally extending life. (Some say it transforms from hundred-year-old vultures, which would be transformational generation. However, such vultures are rare, so why are oysters so abundant? Just as sparrows transform into clams, this is merely one aspect of transformation, not the norm.)
"Mu" is named because there is no female counterpart; some are named because they do not produce seeds or spread vines; some are named because after producing offspring, the root sprouts new shoots. This belongs to damp generation and also to transformational generation, meaning it can exist without males. Duan Chengshi refuted this using Peony, stating it has no eyes, thus how could it look back? He did not know that where affection lies is where the gaze falls; it does not necessarily require visual sight. These views are rigid and inflexible, unsuitable for investigating things to understand ancient principles. The Heavenly Dao rotates to the left; oyster shells lean to the left. Measuring the odd balance, the Dao lies in unity, representing the image of the pivot. All diseases treated belong to uncertain coming and going. Uncertain coming and going is precisely the pivot image of opening and closing. It enters not only Shaoyang but also Shaoyin (Lesser Yin). Thus, in Neijing, diseases such as Shu Luo, Dan Yin, Nue, and Lin Lu are all called Han Re Bing (Chills and Fever Disease). Therefore, the characters "Han Re" (Chills and Fever) in the Bencao Jing should permeate the entire chapter, making the meaning of the pivot clearly visible.)