Hydrous magnesium silicate (Huashi)

Distribution:
Mainly produced in Shandong, Shanxi, Jiangxi, Liaoning provinces of China.
 
Properties (characteristics):
Sweet, bland, cold.
 
Channels (meridians) entered:
Stomach, bladder.

Indications:
Urinary Tract Infection, Kidney Stone, difficulty in urination, combine this herb with mu tong, che qian zi, ju mai like ba zheng san (source of formula: He Ji Ju Fang)
 
Chemical ingredients:
Hydrous magnesium silicate (Mg3(Si4O10)(OH)2) with some ferrous oxide ( FeO) and aluminum oxide (Al2O3)
 
Daly Dosage:
10-15 g
 
Cautions:
Inhalation of large amounts of this fine dust may lead to pulmonary edema and irritation to the upper respiratory tract and can result in tickling cough.
Ingesting large doses may cause gastric irritation, nausea, and diarrhea. It can stimulate the growth of ganulomas in the colon and vagina. Skin Contact may cause allergic reaction. Do not use in case of pixu (spleen deficient) or in high fever or during pregnancy.