Dioscorea villosa Common name: Wild yam
Parts used: Root
Constituents: Steroidal saponins based on diosgenin (dioscin, dioscorin, and others), Starch, Alkaloids, Tannins, Phytosterols
Medicinal actions: Antispasmodic, anti-inflammatory, anti-rheumatic, cholagogue, diaphoretic, analgesic, anti-tussive, anti-asthmatic, expectorant, anti-diabetic, vasodilator, cardiac sedative, bitter, hepatic, diuretic
Medicinal use: Is most indicated in inflammatory conditions of the gastrointestinal tract, joints, uterus and ovaries. Wild yam reduces the inflammation and pain associated with intestinal cramping. This may occur as part of inflammatory bowel disease, flatulence, diverticulitis, and nausea and vomiting. Has specific use for bilious colic and acute phases of RA. Will aid in all types of arthritis, joint/muscle pain, neuralgias and inflammations.
Pharmacy: Tincture: (1:2, 60%), 1-2 ml QD. Acute: 2.5 ml q ½ hour; weekly maximum dosage 100 ml. Decoction: 1-2 tsp root/cup water, decoct 15 min; Chronic: 1 cup TID; Acute: ½-1 cup q ½ hour. Dried root: 2-4g, TID.
Toxicity: None known. High doses may cause nausea, vomitting, diarrhea.
Interactions: None known.
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