煅石膏
中文文本参考：《中国药典（2020年版）》
English text reference: Chinese Pharmacopoeia (2020 Edition)
煅石膏DuanshigaoGypsum UstumCalcined Gypsum
概述 Overview
本品为石膏的炮制品。
Calcined Gypsum is the processed product of Gypsum.
炮制 Processing
取石膏，照明煅法（通则0213）煅至酥松。
Take Gypsum and calcine it until it becomes crisp and loose.
性状 Description
本品为白色的粉末或酥松块状物，表面透出微红色的光泽，不透明。体较轻，质软，易碎，捏之成粉。气微，味淡。
Calcined Gypsum is a white powder or crisp and loose block, with a slightly reddish gloss on the surface, opaque. It is light in weight, soft in texture, easily broken, and can be crushed by pinching. It has a slight odor and a mild taste.
检查 Examination
重金属 Heavy metals
照石膏项下的方法检查，不得过10 mg/kg。
Carry out the method for determination of gypsum <石膏>, not more than 10 mg/kg.
含量测定 Assay
取本品细粉约0.15 g，精密称定，照石膏项下的方法，自“置锥形瓶中，加稀盐酸10 ml”起，依法测定。每1 ml乙二胺四醋酸二钠滴定液（0.05 mol/L）相当于6.807 mg的硫酸钙（CaSO4）。
Weigh accurately about 0.15 g of the powder, carry out the assay according to the method for gypsum <石膏>. Starting from "place it in a conical flask, add 10 ml of dilute hydrochloric acid", determine according to the law. Each 1 ml of disodium ethylenediaminetetraacetate titration solution (0.05 mol/L) is equivalent to 6.807 mg of calcium sulfate (CaSO4).
本品含硫酸钙（CaSO4）不得少于92.0%[1g硫酸钙（CaSO4）相当于含水硫酸钙（CaSO4·2H2O）1.26g]。
The content of calcium sulfate (CaSO4) in this product shall not be less than 92.0% [1 g of calcium sulfate (CaSO4) is equivalent to 1.26 g of hydrated calcium sulfate (CaSO4·2H2O)].
性 Property
寒。
Cold.
味 Flavor
甘、辛、涩。
Sweet, pungent, astringent.
归经 Meridian tropism
归肺、胃经。
Lung and stomach meridians.
功能 Actions
收湿，生肌，敛疮，止血。
To remove dampness, promote tissue regeneration, contract sores, and stop bleeding.
主治 Indications
外治溃疡不敛，湿疹瘙痒，水火烫伤，外伤出血。
For external treatment of non-healing ulcers, itchy eczema, scalds, and external bleeding.
用量 Dosage
无。
None.
用法 Administration
外用适量，研末撒敷患处。
Apply an appropriate amount externally, sprinkle the affected area with powdered medicine.
贮藏 Storage
置干燥处。
Store in a dry place.