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A red block of halloysite, a hydrated aluminum silicate mineral. Enters the Stomach and Large Intestine channels. Sweet, sour, astringent, and warm, it astringes the intestines and stops diarrhea, stanches bleeding, and topically closes sores to generate flesh. A mineral astringent.
涩肠止血
布包入煎剂；外用研末撒敷
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.
湿热积滞泻痢初起者忌用。孕妇慎用。
矿物药（含水硅酸铝）。入煎剂需布包。不宜与肉桂同用（十九畏）。矿物类药材需注意重金属含量检测。
味甘，温。主泻痢，肠辟脓血，阴蚀下血赤白。
上品
@misc{bencaodian-chi-shi-zhi,
author = {{Bencaodian Editorial}},
title = {Chì Shí Zhī 赤石脂 (Red Halloysite) — Halloysitum Rubrum},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/en/herbs/chi-shi-zhi},
urldate = {2026-04-16},
note = {CC BY-SA 4.0}
}© Bencaodian Editorial · Licensed under CC BY-SA 4.0
赤石脂主含含水硅酸铝，具有吸附肠道毒素与水分、保护肠道黏膜的作用，外用可促进创面愈合。
Chi shi zhi is primarily hydrated aluminum silicate; absorbs intestinal toxins and moisture, protects intestinal mucosa, and topically promotes wound healing.
《中国药典》以硅铝含量及重金属限度为质量控制指标。
Chinese Pharmacopoeia uses silica-alumina content and heavy metal limits as quality control markers.
This section is provided for academic reference only and does not constitute medical advice.