Chuan Shan Long - 穿山龙 - Rhizoma Dioscoreae Nipponicae

Pharmaceutical Latin:	Rhizoma Dioscoreae Nipponicae
Common English:	Japanese Dioscorea Rhizome Nippon Yam Root

Category

Herbs that Dispel Wind-Dampness (Antirheumatics)

Properties

Taste	Temperature	Entering Meridians	Dosage
Bitter	Neutral (Cool) Slightly Toxic	Liver Lung (Kidney)	15-30g Tincture: 2-4ml

Actions And Indications

Actions	Indications/Syndromes
Dispels Wind and eliminates Dampness	Wind-Damp Bi with numbness of the flesh and skin and difficulty flexing and extending the joints Commonly used for Hot Bi
Invigorates the Blood, unblocks the collaterals and relaxes the sinews	Blood Stasis due to trauma Chest Bi Heart Qi and Blood Stagnation
Transforms Phlegm and alleviates cough	Lung Heat coughs

Contraindications, Incompatibilities And Herb/Drug Interactions

Major Combinations

Caul. Trachelospermi Luo Shi Teng Caul. Lonicerae Ren Dong Teng	Flos Sophorae Huai Hua Mi	Brown sugar Wine
Hot Bi	Coronary artery disease	Trauma pain
Fr. Trichosanthis Gua Lou Rx. Scutellariae Huang Qin
Lung Heat coughs

Notes

• Its main use is for Wind-Cold-Damp Bi presenting with pain in the lower back and legs, numbness, and traumatic injury.
• A tincture is a common way of preparing it.
• For topical use, it may be macerated and applied to the affected area.
• Another notable feature of this herb is that it protects against damage from radiation.
• According to one source, it also expels Food Stagnation and promotes water metabolism.