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The shell of Meretrix meretrix or Cyclina sinensis (Veneridae). Enters the Lung and Stomach channels. Bitter, salty, and cold, it clears the Lung and transforms phlegm, softens hardness and dissipates binds. When calcined, it effectively controls stomach acid and alleviates pain.
清肺化痰、软坚散结
制酸止痛力增强
煎服10–15g，宜先煎。研末冲服每次1–3g。
Reference range for non-pregnant adults. Not a personalized prescription. Pregnancy, lactation, and pediatric use require specialist supervision.
Protective guidance only — when to avoid or use with caution. This block deliberately omits pregnancy, lactation, and pediatric dosing: any such use must be managed by a qualified TCM practitioner or appropriate specialist.
脾胃虚寒者慎用。
本品性寒，脾胃虚寒者不宜多用。煅制后用于制酸止痛较生品效佳。
蛤蜊味咸，平。主咳逆上气，喘息，胸痛寒热。
@misc{bencaodian-hai-ge-ke,
author = {{Bencaodian Editorial}},
title = {Hǎi Gé Ké 海蛤壳 (Clam Shell) — Meretricis Concha},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/hai-ge-ke},
urldate = {2026-04-16},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
海蛤壳主含碳酸钙和甲壳素，煅制后碳酸钙含量增高，具有中和胃酸、祛痰及软坚作用。
Clam shell consists mainly of calcium carbonate and chitin; calcination increases calcium carbonate content, providing antacid, expectorant, and mass-softening activities.
清肺化痰，软坚散结，制酸止痛。煅制后制酸力佳。
Clears the Lung and transforms phlegm, softens hardness and dissipates binds; calcined form has superior antacid effect.
This section is provided for academic reference only and does not constitute medical advice.