Du Zhong (Eucommia ulmoides)
Eucommia ulmoides
Chinese Herbalism
Chinese Herbalism

Du Zhong

Eucommia ulmoides

Also known as Eucommia Bark, Gutta-percha Tree Bark.

WarmingTaste: SweetTaste: Slightly Pungent

Du Zhong acts primarily as: Liver/Kidney tonic, Antihypertensive, Anti-osteoporotic, Anti-inflammatory, Antioxidant, Immunomodulatory, Pregnancy-supportive (threatened miscarriage). Secondary actions include Tonify Liver and Kidney, Strengthen sinews and bones, Calm the fetus, Lower blood pressure.

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Actions

Liver/Kidney tonicAntihypertensiveAnti-osteoporoticAnti-inflammatoryAntioxidantImmunomodulatoryPregnancy-supportive (threatened miscarriage)Tonify Liver and KidneyStrengthen sinews and bonesCalm the fetusLower blood pressure

Indications what the tradition reached for it in

Safety

The record lists 3 contraindications; open the plate in the library to read them in full.

Dosing as the sources wrote it

PreparationAs writtenMetric
Dried bark decoctionDried bark decoction: 6-15 g/day (often dry-fried for back/kidney use)6000-15000 mg
Tincture (1:5)Tincture (1:5): 2-5 ml three times daily2-5 mL
Powder/capsulePowder/capsule: 1-3 g/day1000-3000 mg

Doses are reproduced from the sources for practitioners and are not a recommendation for any person.

From the sources

primary-actions. Du Zhong acts primarily as: Liver/Kidney tonic, Antihypertensive, Anti-osteoporotic, Anti-inflammatory, Antioxidant, Immunomodulatory, Pregnancy-supportive (threatened miscarriage). Secondary actions include Tonify Liver and Kidney, Strengthen sinews and bones, Calm the fetus, Lower blood pressure.

indications. Du Zhong is traditionally indicated for: Liver and Kidney deficiency, Sore weak low back and knees, Stiffness and weakness of joints, Osteoporosis and bone fragility, Fatigue, Frequent urination, Dizziness, Hypertension, Threatened miscarriage with low back pain and vaginal bleeding, Restless fetus, Impotence.

dose-reference. Reference preparation/dosing for Du Zhong: Dried bark decoction: 6-15 g/day (often dry-fried for back/kidney use); Tincture (1:5): 2-5 ml three times daily; Powder/capsule: 1-3 g/day

safety-cautions. Du Zhong - Contraindications: Yin deficiency with marked heat signs (use with yin tonics), Otherwise broadly safe, Monitor with antihypertensive drugs (additive lowering) | Side effects: Rare mild GI upset, Well tolerated, Dizziness if blood pressure lowered excessively when combined with antihypertensives.

In formulas

Du Zhong stands in 47 documented formulas in the library, among them jia wèi sì wù tàng, dàng guì dì huáng yin, dà bũ yuán jiàn, dà zào wán, wú bi shân yào wán, yòu gui wán.

Often paired with

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