It is a mercurous chloride crystalline powder made by sublimation of mercury, alum (or bile alum) and salt. Location: Hubei, Hunan, Shanxi, Shaanxi, Guizhou and other places. Avoid light grinding, end use. Also known as mercury powder, mercury powder and greasy powder.
This medicine is pungent and cold. Toxic. Meridian of large intestine and small intestine.
Efficacy: external use can attack poison, kill insects and heal sores. Take orally, expel water and relieve constipation.
App application
1. Topical treatment of ulcer, scabies, itching, eczema, alcoholic nose, syphilis and chancre. The taste of this product is pungent, cold and dry, and it has strong effects of attacking poison, killing insects, relieving itching, promoting granulation and healing sores. For the treatment of itching and pain of yellow water sore, mix Cortex Phellodendri, Clam Powder and Gypsum Fibrosum as fine powder, and mix with cold water or sesame oil, such as Clam Powder (surgical genuine product); If it is mixed with coptis powder and pig bile, it is not suitable for treating scabies (Zhong Fang, Lei Yong); Or mix it with weathered lime, lead and sulfur to form fine powder, and generate grease to adjust the dry and wet tinea of the soil, such as Shengsan (Shengji Zonglu); It can also be mixed with Radix et Rhizoma Rhei and Sulfur and taken with cold water to treat alcoholic nose and acne, such as flavored powder (herbal medicine for external use on ulcer).
2. It is not good to control water fullness by oral administration. Oral administration of this product can promote defecation and reduce swelling. It is often combined with rhubarb, kansui and spurge to treat edema and constipation, such as Che Zhou Pill (Danxi Heart Therapy).
Usage and dosage: appropriate amount for external use, collected and sorted by medical education network, ground, mixed or dry mixed, and made into paste for external use. Oral administration of 0. 1 ~ 0.2g each time, divided into pills and powder.
Note that this product is toxic (can cause mercury poisoning), so use it with caution and rinse your mouth after taking it. Physical weakness and pregnant women should not take it.
Ancient book abstracts
1. Addendum to Materia Medica: "Dredge the large intestine, turn scabies and scrofula in children, kill scabies, alcohol poisoning on the nose, wind sores and itching."
2. "Compendium of Materia Medica": "Too much medication, improper medication, toxic gas forced into the meridians and bones, will become myalgia, causing carbuncle swelling and leakage. It will become a waste disease in a few years. Therefore, it is a waste and users should be cautious. "
Modern research
1. chemical composition: mainly contains mercurous chloride, which is also called calomel in chemistry.
2. Pharmacological effect: Calomelas has broad-spectrum antibacterial effect, and has good antibacterial effect on a variety of Gram-positive bacteria, Gram-negative bacteria and pathogenic dermatophytes. Oral administration has a certain laxative and diuretic effect.
3. Adverse reactions: Calomel will be poisoned if taken orally in large quantities. Mercury is a protoplasm poison, which can damage organs and tissues such as kidney and liver, cause dysfunction of central nervous system and autonomic nervous system, and inhibit the activities of many enzymes. External use can also cause contact dermatitis.