Eucommia Bark, Dù Zhòng, 杜仲, Cortex Eucommiae Ulmoidis
Disclaimer For educational purposes only. Do not use as medical advice
| Health Benefits |
| For: Hypertension • Arthritis • Osteoporosis • Joint pain • Knee pain • Pregnancy bleeding • High cholesterol • Lower back pain
Du Zhong has both phytoestrogen and phytoandrogen to help both men and women on bone density, fertility, and sex drive. Significantly lowers total cholesterol - particularly the plasma levels of triglyceride. |
| Attributes: Anti-aging • Stress reducer • Anxiety reducer • Adaptogen • Phytoestrogen |
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| Constituents: Aucubin • Genipin • Gutta-Percha • Pinoresinol • Alkaloids • Patassium • Diglucoside, Chlorogenic acid • Glycosides • Vitamin C |
| Photos (Click to enlarge) |
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| Fun Facts |
| Other Names: Hardy Rubber Tree • Tuch'ung (Korean) • Tochu (Japanese) • Silk Cotton Bark Plant Family: Eucommiaceae |
| The massive demand for bark and have now put this tree on an endangered list. Only trees 10 years and older may be harvested for the bark. Tastes like green tea. Du Zhong is the inner bark layer inside the outer cork tree bark. |
| Species | |
| None noted |
| Growth | |
| Eucommia Ulmoides is NOT in the USDA Plant Database. |
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USA: Eucommia Ulmoides is not available in the wild. USDA Zones: 4-8. Native: China Habitats: Mountains, valleys, 300m<elevation<500m Du Zhong can grow to 60 feet tall and 50 feet wide. It typically blooms in April. When the fruit falls, there will be tons of it, so be careful not to plant it around swimming pools or patios. They should also be planned away from foundations and septic systems because their roots grow very deep. |
| Category: Tonify Yang |
| English: Eucommia Bark Pinyin: Du Zhong Pharmaceutical: Cortex Eucommiae Ulmoidis |
| Organs: Kidney • Liver Temperature: Warm |
| Taste: Sweet • Pungent Toxicity: May cause reaction for those allergic to latex |
| Patterns: Liver deficiency • Kidney deficiency • Agitated fetus • Rising liver yang |
| Actions: Tonify kidneys • Tonify liver • Prevent miscarriages • Tonify bones and tendons • Promote circulation Key 2nd Actions: Calm Fetus • Strengthen Bones/Sinews • Lower Hypertension • Treat Lumbago |
| Indications: Joint pain • Lower back pain • Knee pain • Pregnancy bleeding • High blood pressure • High cholesterol • Frequent urination |
| Contraindications: Latex allergies • Yin deficiency heat |
| Typical Dosage: 6-15 g Guidelines |
| Parts Used: Leaves • Inner bark layer inside the outer cork tree bark (minimal 15 year old trees) |
| Other: |
| Combine With | Purpose |
| Shan Zhu Yu + Tu Si Zi | Kidney deficiency cold: frequent urination, impotence |
| Gui Zhi + Du Huo + Qin Jiao | Back pain worsen in cold environment. Sinking pulse with greasy white tongue coat |
| Bu Gu Zhi + Hu Tao Ren | Kidney yang deficiency: lower back pain with wheezing |
| Xu Duan + Tu Si Zi +Sang Ji Shen | Potential miscarriage or lower back pain |
| Xu Duan + Shan Yao | Persistent miscarriages |
| Bai Shao + Xia Ku Cao | Rising liver yang: vertigo or dizziness |
| Dui Yao Pairs | Purpose |
| Bai Shao + Xia Ku Cao | Rising liver yang: vertigo or dizziness |
| Formulas with Du Zhong: | |
| Ai Tai Yin • Bu Shen Gu Chong Wan • Da Zao Wan • Dang Gui Di Huang Yin • Du Huo Ji Sheng Tang • Qing E Wan • Tian Ma Gou Teng Yin • You Gui Wan • You Gui Yin • Zan Yu Dan | |
| Alert |
Be cautions with all medicine.
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| Potential Drug Interactions |
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Herbal medicine may interact negatively with pharma drugs and other herbs. Examples below: Herbs: ♦ Hypotensive: ginseng, goji berry, cinnamon ♦ Cholesterol: goji berry ♦ Diuretic: heal all Pharma Drugs:♦ High blood pressure: captopril (Capoten), benazepril (Lotensin), Perindopril (Aceon), irbesartan (Avapro), telmisartan (Micardis), valsartan (Diovan), acebutolol (Sectral), carvedilol (Coreg), metoprolol (Lopressor), amlodipine (Norvasc), felodipine (Plendil), verapamil (Calan), labetalol (Trandate) ♦ Diuretic: Acetazolamide, Aldactone, Amiloride Hydrochloride, Bumex, Diuril, Diulo, Demadex, Dyrenium, Edecrin, Enduron, Hydrodiuril, Hygroton, Lasix, Lozol, Methazolamide, Mykrox, Zaroxolyn ♦ High cholesterol drugs: Crestor, Zocor, Lipitor, Zetia, Pravastatin, Livolo, Niacin, atorvastatin, Vytorin, Altocor |
Information in this post came from many sources, including class notes, practitioners, websites, webinars, books, magazines, and editor's personal experience. While the original source often came from historical Chinese texts, variations may result from the numerous English translations. Always consult a doctor prior to using these drugs. The information here is strictly for educational purposes.
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