Rehmannia, Shú Dì Huáng, 熟地黄, Radix Rehmannia Glutinosae Conquitae

Disclaimer    For educational purposes only.  Do not use as medical advice

<strong>About</strong><strong>Botany</strong><strong>Chinese Medicine</strong><strong>Caution</strong>
Health Benefits
For: Diabetes • Thyroid disorder • Allergy • Frequent urination • High fever • Hemorrhage • Menopause • Insomnia
Attributes: Immune system booster • coagulant • antidiabetic • hepatoprotective • hypotensive • anti-aging • antioxidant • antihistamine • emmenagogue
Products (online examples)

Root

Tablet

Tincture

Granules

Powder

Sachet

Granules

Extracts

Research:

Article:

Constituents: 
Sterol • acteoside • beta sitosterol • campesterol • arginine • rehmannin • stigmasterol • manitol • glycosides • polysaccharides (catalpol) • over 20 kinds of amino acids • alkaloids • phosphoric acid • organic acids • adenosine • lecithin • vitamin A.  The processing reduces the polysaccharides to roughly 66% of fresh roots. According to the Pharmacopoeia of People's Republic of China (2010 Edition), the amount of catalpol should be at least 0.20%, and  acteoside at least 0.020% to meet medicinal standards.

Photos (Click to enlarge)
Fun Facts
Other Names: Sukchihwang (Korean) • Jukujio (Japanese)
Plant Family: Scrophulariaceae
Shu Di Huang is processed dried rehmannia root.  Both the leaves and roots of the rehmannia glutinosa plants are edible.  Like many roots, how it is processed has different medicinal effects.  This post is focused on the rehmannia that has been dried and processed by combining it with 30% rice wine and then steamed for 8 hours or until it's 80% dry.  Then it's sliced for serving.  
Species
Rehmannia Glutinosa ( Sheng Di Huang and Shu Di Huang) are the same root but different processing methods.  Shú dì huáng is teamed with water or alcohol.  It literally translates into "cooked" di huang.  Sheng Di Huang is raw or dried.

Rehmannia Elata is not di huang and is only used for ornamental purposes.

Digitalis purpurea is a foxglove specie, but is poisonous if ingested.  However, one of its most powerful chemicals, digoxin, is used to treat heart conditions like atrial flutter, heart failures, and artial fibrillation was isolated in this plant in 1930.  It's sold under brand names like Lanoxin.  It's on the World Health Organization's list of Essential Medicines.

Growth
Rehmannia Glutinosa is NOT in the USDA Plant Database.  

USA: Rehmannia Glutinosa is not available in the wild.    USDA Zones: 7-11

Native: China, Korea

Habitats:   Mountain slopes, stony grounds, roadsides

They grow to 2-3 feet tall and up to 24 inches wide.  It can be grown in full sun or partial shade.  Neutral pH of about 6.5 to 7.0.¹   Bloom Time is May to September.  Perennial.

Category: Tonify Blood 
English: Rehmannia    Pinyin:  Shu Di Huang      Pharmaceutical: Radix Rehmannia Glutinosae Conquitae  
Organs: Heart • Kidney • Liver    Temperature: Slightly Warm    
Taste: Sweet    Toxicity: Low. Can cause mild stomach ache, dizziness, palpitations and diarrhea. Symptoms often subsides after a few doses.  
Patterns: Blood deficiency • Kidney yin deficiency 
Actions:  Tonify blood • Nourish Yin • Tonify essence • Nourish blood
Indications: Blood deficiency • Dizziness • Palpitations • Pale complexion • Night sweats • Irregular menstruation • Post partum bleeding • Uterine bleeding • Steaming bone disorder • Lower back pain • Dizziness • Premature hair graying • Tinnitus • Reduced hearing • Insomnia • Pallor • Menopause • Hot Flushes • Wasting and thirsting disorder • Weakness and pain in lower back and lower limbs
Contraindications: Cloying • Pregnancy • Spleen and/or Stomach deficiency • Stagnant phlegm • Stagnant qi
Typical Dosage: 9-30g          Guidelines
Parts Used: Leaves • Root
Other: Processed with 30% rice wine and then steamed for 9 hours
Combine With Purpose
Shan Zhu Yu +Shan Yao Yin deficiency: Insomnia, dementia, night sweats, dizziness, and tinnitus
Dang Gui + Bai Shao Blood deficiency: Insomnia, papitations, irregular periods, dizziness.
Gui Ban Yin deficiency + ascendant Yang: Insomnia, dementia, night sweats, dizziness, and tinnitus
Sha Ren Blood and spleen deficiency
Dui Yao Pairs Purpose
Shu Di Huang + Dang Gui Kidney yin and blood deficiency chronic cough and asthma
Shu Di Huang + Sha ren Liver/kidney yin deficiency, and blood defficiency
Formulas with Shu Di Huang:

Ai Fu Nuan Gong Wan • Ba Xian Chang Shou Wan • Ba Zhen Tang • Bai He Gu Jin Tang • Bao Yin Jian • Bu Fei Tang • Bu Gan Tang • Bu Shen Gu Chong Wan • Da Bu Yin Wan • Da Qin Jiao Tang • Da Ying Jian • Dang Gui di Huang Yin • Dang Gui Ji Xue Teng Tang • Dang Gui Liu Huang Tang • Di Huang Yin Zi •  Ding Jing Tang • Du Qi Wan • Er Long Zuo Ci Wan • Gu Ben Zhi Beng Tang • Hu Qian Wan • Jia Wei Shen Qi Wan • Jiao Ai Tang • Jin Shui Liu Jun Jian • Jing Qian Fang • Liu Wei Di Huang Wan • Mai Wei Di Huang Wan • Ming Mu Di Huang Wan • Qi Ju Di Huang Wan • Qing Zao Run Chang Tang • Ren Shen Bu Fei Tang • Ren Shen Yang Rong Tang • Ren Shen Zi Xue Tang • Shen Qi Si Wu Tang • Shi Quan Da Bu Tang • Si Wu Ma Zi Ren Wan • Si Wu Tang • Tai Shan Pan Shi San • TAo Hong Si Wu Tang • Tian Di Jian • Tong You Tang • Yang He Tang • You Gui Wan • Yang Jing Zhong Yu Tang • Yi  Yin Jian • You Gui Wan • You Gui Yin • Yu Nu Jian • Zhi Bai Di Huang Wan • Zuo Gui Wan • Zan Yu Dan • Zhu Jing Wan • Zuo Gui Yin

Alert
Be cautions with all medicine.
  • Overdose can lead to loose stools and abdominal issues.
  • Do not use bronze or iron pots to cook this herb.
Potential Drug Interactions

Herbal medicine may interact negatively with pharma drugs and other herbs.  Examples below:

Herbs: ♦ Antidiabetic: Mei Gui Hua, Du Zhong, Dang Shen, HuoLong Guo, rougui, Celery, Chamomile, Moringa Tree, Basil, Ku Gua, Artichok, Hibiscus, Gou Qi Zi, Ju Hua, Xia Ku Cao, Dang Gui, Zhi Mu, Shi gao, Xuan Shen, Cang Zhu, Shan yao, Huang Qi

Pharma Drugs:♦ Antidiabetic: Acarbose (Precose ), Alogliptin and Metformin HCl Tablets (Kazano), Alogliptin and Pioglitazone Tablets (Oseni ), Albiglutide (Tanzeum), Alogliptin (Nesina), Bromocriptine Mesylate (Cycloset, Parlodel), Canaglifozin (Invokana), Canagliflozin and Metformin (Invokamet), Chlorpropamide (Diabinese), Dapagliflozin (Farxiga), Dulaglutide (Trulicity), Empagliflozin (Jardiance), Glimepiride (Amaryl), Glyburide (DiaBeta, Glynase), glipizide (Glucotrol), Insulin, Miglitol (Glyset), Metformin, Linagliptin (Tradjenta), Saxagliptin (Onglyza), Sitagliptin (Januvia), Nateglinide (Starlix), Repaglinide (Prandin), Tolazamide (Tolinase), Tolbutamide (Orinase, Tol-Tab), Rosiglitazone (Avandia), Pioglitazone (Actos), Pramlintide (SymlinPen 120, SymlinPen 60)

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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