Black-and-White Worm-Extraction Pills，From *Introduction to Medicine*, Volume 7.，For parasitic infections causing abdominal pain, as well as loss of voice due to lung obstruction.
Black-and-White Worm-Extraction Pills
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Formulas Name : Black-and-White Worm-Extraction Pills
Chinese Name : 钓虫黑白丸
Drug Formulation
Magnetite (from the White Pill Formula), Mica, Serpentine, and Licorice, each in equal parts (grind these into a fine powder; form into pills with glutinous rice paste, each the size of a soybean); Cinnabar (from the Black Pill Formula), Indigo Powder, Calcined Alum, and Euphorbia, each in equal parts (grind these into a fine powder; form into pills with glutinous rice paste boiled in vinegar, each the size of a longan seed).
Source
From *Introduction to Medicine*, Volume 7.
Benefits
For parasitic infections causing abdominal pain, as well as loss of voice due to lung obstruction.
Instructions for Use
First, prepare a decoction using lamp wick and administer 1 white pill; then thread 1 black pill onto a piece of coarse thread, prepare another decoction using lamp wick, and administer it until the patient begins to vomit;If vomiting does not occur, have the patient drink one mouthful of black plum water, followed by one mouthful of cold water. Then, the practitioner should strike the patient’s chest and back while gently tugging the thread, causing the patient to expel the cold water and produce a retching sound. Repeat this process 3–4 times; the black and white pills, along with the pathogenic roots and stagnant blood, will be expelled through vomiting and diarrhea. After vomiting, treatment must be administered according to the specific meridian affected.
Note
Use spring water from the summit of a very high mountain, or water from Wudang’s Huilong Spring, to boil the paste into pills; only then will they not dissolve.
Copyright: Excerpt from From *Introduction to Medicine*, Volume 7., Copyright belongs to the Original Author and all original sources, This article was shared by DeDe on August 24, 2026, Please credit the source and include a link to the original article when reposting.
Terminology Proofreading: [Cheng Bo] | August 24, 2026 Reviewed by: [Wang Zhongxiang, Associate Chief TCM Physician (China)] | August 24, 2026
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Black-and-White Worm-Extraction Pills,For parasitic infections causing abdominal pain, as well as loss of voice due to lung obstruction.