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Knowledge baseHerbs

Huang Yao Zi黃藥子

Rhizoma Dioscoreae BulbiferaeDioscorea Bulbifera Tuber

  • Toxic

Also known asPotato Yam Tuber · Air Potato Yam Rhizome

Category
** Herbs that Cool and Transform Phlegm-Heat
Nature
cold
Taste
bitter
Channels entered
Liver, Lung
Secondary channels
Heart
Dosage
3–15 g

Usual doses

Dosage
3–15 g
Cancers
30 g

Actions & indications

Resolves Phlegm, dissipates nodules and reduces masses
Goiter (it can be used alone as a tincture)
Clears Heat and reduces toxicity
  • Toxic swellings, scrofula, swollen and painful throat and animal bites (topical)
  • Only in emergency for snake bite (does not replace anti-venom)
  • Many types of cancers, especially esophageal, Stomach, uterine and Colon
Cools the Blood and stops bleeding
Hematemesis, hemoptysis and uterine bleeding
Stops coughing and calms wheezing
  • Coughs associated with acute and chronic bronchitis
  • Whooping cough

Contraindications

  • Avoid with ulcerated abscesses.
  • Avoid with pre-existing liver disorders such as hepatitis or cirrhosis.
  • May cause nausea, dry mouth, abdominal pain, and vomiting.
  • Prolonged use of high doses may cause liver damage and jaundice.
  • May cause alopecia.
  • Overdose may cause a burning sensation in the mouth, tongue, and pharynx, salivation, diarrhea, and constricted pupils.

Combinations

Notes

  • It resolves Shao Yin Heat to relieve throat Bi.
  • It can be applied topically for psoriasis and cervical dysplasia.
  • Used alone as a medicinal tincture, it treats goiter.
  • In its fresh form it can be made into a paste for snake bites, combined with other herbs according to the presenting symptoms.
  • This herb has been shown to inhibit cancer cell growth.
  • Ground with water and either ingested or applied topically, it has shown curative effects on various malignant sores, swellings, fistulas, pharyngitis, and snake and dog bites.
  • It has also shown a curative effect on esophageal cancer.
  • For long-standing goiter with Qi Stagnation, mix it with wine and drink frequently.
  • Ground and taken with water, or applied topically, this herb treats malignant sores, swellings, fistulas, pharyngitis, and snake and dog bites.
  • Prepared as a wine, this herb treats goiter caused by Qi Stagnation.
  • Patients with long-standing goiter should drink the wine frequently to keep its fragrance present in the body.

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