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Smithsonite (zinc carbonate mineral), processed by calcination and levigation. Enters the Stomach and Liver channels. Sweet and neutral, used exclusively topically to brighten the eyes, remove pterygium, absorb dampness, stop itching, and close sores. A mineral medicinal for external use only.
明目退翳，收湿敛疮
外用适量，水飞后研细末撒敷或调敷
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.
仅供外用，不可内服。
矿物药，仅供外用。主含碳酸锌，不可内服，误服可致恶心呕吐、腹痛。眼部使用需充分水飞研细。
炉甘石，甘平。治目赤涩翳，烂弦风眼。
@misc{bencaodian-lu-gan-shi,
author = {{Bencaodian Editorial}},
title = {Lú Gān Shí 炉甘石 (Calamine) — Calamina},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/lu-gan-shi},
urldate = {2026-04-16},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
炉甘石煅后主含氧化锌，具有收敛、防腐、保护创面及止痒作用，为皮肤科常用外用药。
After calcination, lu gan shi is primarily zinc oxide; provides astringent, antiseptic, wound-protective, and antipruritic effects. A common dermatological topical agent.
《中国药典》以氧化锌含量为质量控制指标。
Chinese Pharmacopoeia uses zinc oxide content as quality control marker.
This section is provided for academic reference only and does not constitute medical advice.