Huang Yao Zi - 黃藥子 - Rhizoma Dioscoreae Bulbiferae

Pharmaceutical Latin:	Rhizoma Dioscoreae Bulbiferae
Common English:	Air Potato Yam Rhizome Dioscorea Bulbifera Tuber Potato Yam Tuber

Properties

Taste	Temperature	Entering Meridians	Dosage
Bitter	Cold (Neutral) (Toxic)	Liver Lung (Heart)	3-15g Cancers: 30g for Tincture: 1- ml 6-15g (Secondary source)

Actions	Indications/Syndromes
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

Contraindicated for those with ulcerated abscesses.
Contraindicated for those with pre-existing Liver disorders such as hepatitis or cirrhosis.
It may cause nausea, dry mouth, abdominal pain and vomiting.
Long term use of high doses may cause liver damage and jaundice.
It may cause alopecia.
Overdose may cause a burning sensation in the mouth, tongue and pharynx, salivation, diarrhea and contracted pupils.
Use caution for those with Spleen and Stomach Deficiency Cold, Cold-Phlegm or Damp-Phlegm.

INCOMPATIBILITIES

HERB/DRUG INTERACTIONS

Hb. Sargassii Hai Zao Concha Ostreae Mu Li Thallus Eckloniae (Algae) Kun Bu	Spica Prunellae Xia Ku Cao	Flos Lonicerae Jin Yin Hua Hb. Violae Zi Hua Di Ding
Thyroid swellings. Goiter.	Goiter.	Toxic swellings internally and topically.
Rx. Sophorae Tonkinensis Shan Dou Gen Rz. Belamcandae She Gan (Rx. Isatidis) (Ban Lan Gen)	Sargassum Hai Zao Hb. Hedyotis Bai Hua She She Cao Sm. Coicis Yi Yi Ren Or Sargassum Hai Zao Hb. Hedyotis Bai Hua She She Cao Sm. Coicis Yi Yi Ren Hb. Scutellariae Barbatae Ban Zhi Lian Pseudobulbus Cremastrae/Pleiones Shan Ci Gu	Saccharum Cristallisatum (Rock Candy) Bing Tang
Swollen, painful throat.	Esophageal, stomach, rectal, and thyroid cancers.	Cough due to acute or chronic bronchitis. Pertussis.
Pollen Typhae Pu Huang (Petiolus Trachycarpi) (Zong Lu Pi) (Charred Rx. Rubiae) (Qian Cao Gen)
Bleeding.

It resolves Shao Yin Heat, thereby relieving throat Bi.
It may be applied externally for psoriasis and cervical dysplasia.
As a single-herb medicinal tincture, it can treat goiter.
The fresh herb can be made into a paste for snake bites, with other herbs added according to the symptoms.
Studies show that it inhibits cancer cell growth.
Ground with water and taken internally or applied externally, it has proven curative for a range of malignant sores, swellings, fistulas, pharyngitis, and snake and dog bites.
It has shown curative effects on esophageal cancer.
For chronic goiter with Qi Stagnation, mix it with wine and drink it often.
Ground and taken with water or used topically, the herb treats malignant sores, swellings, fistula, pharyngitis, and snake and dog bites.
Prepared as a wine, it treats goiter caused by Qi Stagnation.
Patients with long-standing goiter should drink the wine often so that its fragrance is kept in the body.