
Latin Name: Dioscorea villosa (Dioscoreaceae)
Common names: Wild yam root, Colic root, Devil’s bone, Rheumatism root
Part(s) used: Root
Form(s) used: Decoction, tincture
Dosages
– Decoction: 8-16 g, 1-2x/day
– Tincture: 1-2ml, 2-3x/day
Herbal Actions
– Relaxant
– Bitter
– Astringent
– Cooling
– Stabilizing
– Dry
Clinical Actions
– Strong Antispasmodic
– Demulcent and Emollient due to high starch content and steroidal saponins
– Anti-inflammatory
– Astringent/ Tonifier to Reproductive System
Constituents: Steroidal saponins ( dioscin, gracillarin), polysaccharides (starch; some mucilaginous polysaccharides), phytosterols, alkaloids, tannins
Primary Uses: Anti-inflammatory and analgesic for chronic inflammatory disorders (fibromyalgia, rheumatism, arthritis); antispasmodic to gastrointestinal tract (gastritis, diarrhea) and genitourinary tract (dysmenhorrea); demulcent and emollient properties relieve skin rashes with redness and sores (eczema, dermatitis) when applied topically
Cautions, Contraindications, and Possible Adverse Effects: There are no reports of contraindications or side effects when herb is used correctly. It is not recommended to use Wild Yam Root as substitution for birth control.
Written By: Sadie A. Garner, Clinical Herbalist
Resources Cited: Skenderi- p.398 , Holmes- p.564-565, Actions Database- p. 36 , CSCH Notes- Musculoskeletory System