Introduction of Shi Gao:Gypsum or Gypsum Fibrosum.
✵The TCM herbalism is also known as pharmaceutics of Traditional Chinese Medicine, or Chinese pharmaceutics, is the branch of health science dealing with the preparation, dispensing, and proper utilization of Chinese herbs. It is majorly composed of Introduction of Chinese Medicinals, Classification of Chinese Herbs, Formulas, and Patent medicines.
Classifications of Herbs:Herbs Clearing Heat and Purging Fire.
Introduction: Herbs Clearing Heat and Purging Fire: an agent or substance that has the effect of clearing heat from the Qi system, with high fever, dire thirst, dry yellow tongue coating and rapid surging pulse, or purging fire from the internal viscera, such as heart fire, liver fire, etc.
✵Till the date Oct 10th,2019, there are totally  kinds of common TCM herbs,  kinds of related plant species,  kind of related minerals, are recorded in this category. These Herbs Clearing Heat and Purging Fire are briefly introduced separately:
Pin Yin Name: Shí Gāo.
English Name: Gypsum.
Latin Name: Gypsum Fibrosum.
Property and flavor: cold, pungent, sweet.
Brief introduction: The herb Gypsum Fibrosum is a soft mineral chiefly composed of hydrated calcium sulfate(CaSO42H2O), used to clear heat and purge fire for relieving (1).high fever with fidgetiness and thirst in cases of warm diseases.(2).heat in the lung with cough and dyspnea, and (3).heat in the stomach with toothache and painful swelling of the gums, and also externally to promote the healing of wounds and ulcers. The herb is commonly known as Gypsum Fibrosum, Gypsum, Shí Gāo.
Mineral source: The herb Gypsum Fibrosum(Gypsum) is sulphate gypsumite mineral gypsum. It is also known as Gypsum, Shí Gāo. This commonly used mineral is introduced as:
(1).Gypsum.: Mineral description: Monoclinic system. Crystals are often plate-like, and aggregates are often dense granular, fibrous, or lamellar. Color is white normally, crystal colorless transparent, when the composition is not pure can present gray, flesh red, honey yellow or black. Stripe white. Transparent to translucent. Cleavage surface glass luster or pearl-like luster, fiber-like silk luster. Lamellar cleavage is significant. Broken shell-shaped at most lamellae. The hardness is 1.5 to 2. The proportion of 2.3. It is flexible.
Ecological environment: The mineral often occurs in sedimentary rocks formed by gulf salt lakes and inland lakes. It distributes in the middle and lower reaches area of the Yangtze River, the Zhujiang river area, southwest, northwest and other areas of China.
Characters of herbs: The product is a fibrous aggregate. It is a long, plate or irregular block. White, off-white or pale yellow; Streaked white; Some are translucent. The upper and lower sides are relatively flat, without texture and luster; The longitudinal plane is usually longitudinally fibrous with a silky sheen. Weight, soft texture, fingernails can be carved. Slight smell, mild taste. With a large, white color, longitudinal fiber shape, luster, quality pine, no grocery stone for the better.
Pharmacological actions: The Gypsum Fibrosum has an antipyretic effect on the fever caused by the toxin and can relieve thirst. It can enhance the phagocytic ability of rabbit alveolar macrophages against Staphylococcus albicans and colloidal gold, and promote the maturation of phagocytic cells. It can shorten clotting time, promote bile excretion, and have diuresis and hypoglycemia effect. It can inhibit the nerve stress ability and reduce the excitability of skeletal muscle. A low dose can increase heart rate and coronary blood flow. Large doses showed inhibition but decreased blood flow. In addition, it can accelerate the healing of bone defects.
Medicinal efficacy: The raw herb is used for relieving heat and fire, relieving restlessness and relieving thirst. It is indicated for exogenous febrile disease, high fever and polydipsia, lung heat and asthma, hyperpyrexia of the stomach, toothache and headache. The calcined gypsum can reduce dampness, promote tissue regeneration, collect sores, stop bleeding, treat ulcers without collecting, eczema pruritus, water and fire scald, traumatic bleeding.
Administration of Gypsum Fibrosum(Shí Gāo):
Administration Guide of Gypsum Fibrosum(Shí Gāo)
Internally:15~60 grams,decocted earlier(decocted about 15~20 minutes earlier than other herbs,CP),Internally:water decoction, 0.3~1 liang(about 9~30 grams),big dosage could be up to 6~8 liang(about 180~240 grams), or prepare to pill,powder.Externally:calcined and grinded into fine powder,or apply stick(DCTM),Internally:water decoction, 0.3~1 liang(about 9~30 grams),big dosage could be up to 6~8 liang(about 180~240 grams), or prepare to pill,powder.Externally:calcined and grinded into fine powder,or apply stick(CHMM).
1.Introduction of Shi Gao:Gypsum or Gypsum Fibrosum.
2.TCM Books:DCTM(Dictionary of the Chinese Traditional Medicine),CHMM(Chinese Herbal Materia Medica).