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Dioscorea bulbifera, Huang Yao Zi 黄药子Air Potato, Potato Yam
Varahi, Varahikanda (Ayurveda) Barahikand (Unani) Kodi-kilangu, Pannu-kilangu (Siddha) Huang Yao Zi (TCM) |
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Dioscorea bulbifera
(Seikei Zusetsu, 1804, Leiden University Library)
(Seikei Zusetsu, 1804, Leiden University Library)
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Botanical name:
Dioscorea bulbifera (syn. D. sativa, D. versicolor)
Parts used:
Tuber
Temperature & Taste:
Cool, dry. Bitter, Sweet.
Some accounted in Neutral
Classification:
P. Clears Hot Phlegm
Dioscorea bulbifera (syn. D. sativa, D. versicolor)
Parts used:
Tuber
Temperature & Taste:
Cool, dry. Bitter, Sweet.
Some accounted in Neutral
Classification:
P. Clears Hot Phlegm
Uses:
1. Clears Phlegm-Heat, Stops Cough and Wheezing: (TCM)
-Cough, acute and chronic Bronchitis
-Whooping Cough
-Tuberculosis
2. Clears Phlegm-Heat, Reduce Masses: (TCM)
-Goiter, Thyroid Swellings; it can be used alone in a tincture
-Lymphatic Nodes and Swellings
-Toxic Swellings, Tumors; Cancers of the Stomach, Bowels, Uterus, Lung, Esophagus etc
-Orchitis
3. Cools the Blood, Stops Bleeding: (TCM)
-Coughing Blood, Vomiting Blood
-Uterine Bleeding
-Dysentery or Diarrhea with Blood
4. Clears Heat, Resists Poison: (TCM, Ayurveda)
-Dysentery, Hemorrhoids
-Venereal Sores (Roasted Tuber) (Ayurveda)
-Chronic Skin diseases; Itchiness (API)
-Sore, Swollen and Painful Throat
-Animal Bites; Insect Stings; Snake Bite, Dog Bite
5. Clears Heat and Damp: (Ayurveda)
-chronic Urinary diseases
6. Kills Worms and Parasites:
-used for Parasites (Ayurveda)
7. Externally:
-powdered tuber is applied to Boils, Swellings, Ulcers (Ayurveda)
-tincture is applied to Psoriasis
-tincture can be applied to the Cervix for Cervical Dysplasia
DOSE:
1. Side effects like dry mouth, reduced appetite, nausea and abdominal pain can occur within normal dosage range.
2. Generally not used for more than 2–3 weeks without a break.
3. If used for more than 2 weeks, regular Liver function tests should be performed.
Of the Powder: 3–6 grams (API)
In Decoction: 6–15 grams (TCM)
SUBSTITUTE:
1. Dioscorea bulbifera is used as a substitute for Habenaria edgeworthii and H. intermedia (Riddhi) in Ayurveda
CORRECTIVE:
1. Angelica Dang Gui
2. Licorice
1. Side effects like dry mouth, reduced appetite, nausea and abdominal pain can occur within normal dosage range.
2. Generally not used for more than 2–3 weeks without a break.
3. If used for more than 2 weeks, regular Liver function tests should be performed.
Of the Powder: 3–6 grams (API)
In Decoction: 6–15 grams (TCM)
SUBSTITUTE:
1. Dioscorea bulbifera is used as a substitute for Habenaria edgeworthii and H. intermedia (Riddhi) in Ayurveda
CORRECTIVE:
1. Angelica Dang Gui
2. Licorice
Main Combinations:
1. Sore and Swelling of the Throat, Dioscorea bulbifera and Belamcanda She Gan
1. Cough, Bronchitis:
i. Dioscorea bulbifera and Licorice
ii. Whooping Cough, Dioscorea bulbifera and Rock Candy
2. Goiter:
i. Dioscorea bulbifera and Self Heal (Xia Ku Cao)
ii. Dioscorea bulbifera and Sargassum Hai Zao (or Kelp)
3. Bleeding, Dioscorea bulbifera and Typha Pu Huang
4. Thyroid Swellings, Dioscorea bulbifera, Sargassum Hai Zao, Kelp (Kun Bu), Self Heal (Xia Ku Cao)
5. Toxic Swellings:
i. Dioscorea bulbifera and Dandelion (Pu Gong Ying), Self Heal (Xia Ku Cao)
ii. Dioscorea bulbifera and Lonicera Jin Yin Hua, Violet (Zi Hua Di Ding)
6. Cancer:
i. Dioscorea bulbifera and Oldenlandia Bai Hua She She Cao, Scutellaria barbata Ban Zhi Lian
ii. of the Lungs, Dioscorea bulbifera, Scutellaria barbata Ban Zhi Lian with Dandelion (Pu Gong Ying), Coptis Huang Lian, Pinellia Ban Xia, Trichosanthes Gua Lou. (Clinical trials showed an effective rate of 60%)
7. Alzheimer's Disease, Dioscorea bulbifera, Bacopa, Sea Buckthorn (this is a researched formula, see below)
Major Formulas:
Narasimha Churna
Cautions:
1. Not used long-term; large doses or long-term use can damage Stomach and Liver.
2. Avoid use in those with Liver disease. Liver function should be monitored with continued use.
3. Chronic usage was claimed to make the hair fall out in older TCM texts.
4. Enhances toxicity of Doxirubicin. Care when used in conjunction with Chemotherapy.
TOXICITY:
1. Overdose causes burning sensation in the mouth, tongue and throat, nausea, vomiting, abdominal pain, diarrhea, contracted pupils, which may lead to respiratory distress, and death.
2. Chronic use can cause toxic hepatitis.
3. Doses of as little as 15 grams per day has caused Jaundice and Liver damage. A dose of 36 grams per day taken for 45 days caused death in one patient.
Main Preparations used:
1. Not used long-term; large doses or long-term use can damage Stomach and Liver.
2. Avoid use in those with Liver disease. Liver function should be monitored with continued use.
3. Chronic usage was claimed to make the hair fall out in older TCM texts.
4. Enhances toxicity of Doxirubicin. Care when used in conjunction with Chemotherapy.
TOXICITY:
1. Overdose causes burning sensation in the mouth, tongue and throat, nausea, vomiting, abdominal pain, diarrhea, contracted pupils, which may lead to respiratory distress, and death.
2. Chronic use can cause toxic hepatitis.
3. Doses of as little as 15 grams per day has caused Jaundice and Liver damage. A dose of 36 grams per day taken for 45 days caused death in one patient.
Main Preparations used:
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