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Yibian
 Shen Yaozi 
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formula nameFour Ingredients Decoction
sourceTaiping Huimin Heji Jufang
smart_toy
bubble_chart Preparation and Dosage

Chinese Angelica (Radix Angelicae Sinensis) 10gm
Sichuan Lovage Rhizome (Rhizoma Chuanxiong) 10gm
Prepared Rehmannia Root (Radix Rehmanniae Praeparata) 10gm
Peony Root (Radix Paeoniae Alba) 10gm

bubble_chart Efficacy

Tonifying blood and regulating menstruation.

bubble_chart Indications

Nutrient-blood deficiency and stagnation syndrome or Chong and Ren deficiency syndrome. Symptoms include dizziness, blurred vision, palpitations, tinnitus, pale lips and nails, menstrual irregularities in women, scanty menstruation or amenorrhea, pain in the umbilical and abdominal regions, a pale red tongue, and a wiry and thin or thin and choppy pulse.

bubble_chart Formula Principles

This formula is a blood-tonifying and blood-activating formula, and it is also a fundamental formula for regulating menstruation in women. Blood deficiency leads to insufficient blood to fill the vessels, resulting in malnutrition of the uterine vessels, which causes menstrual irregularities, menorrhagia, and metrostaxis; blood deficiency also leads to sluggish blood circulation, hence dysmenorrhea. In the formula, Prepared Rehmannia Root enriches yin and replenishes blood, Chinese Angelica tonifies blood and harmonizes blood, with these two herbs focusing on tonifying blood as the main ingredients; Peony Root emolliates the liver and nourishes blood, Sichuan Lovage Rhizome regulates qi and resolves stasis, serving as auxiliary herbs. The combined effects of these four herbs are such that Rehmannia and Peony are blood-nourishing herbs within the blood category, while Angelica and Lovage are qi-regulating herbs within the blood category. Their combination ensures tonification without stagnation, harmonizing nutrient-blood. Therefore, this formula has the functions of nourishing blood, activating blood, and moving qi. It can not only tonify blood in cases of blood deficiency but also be modified for use in cases of blood stagnation, especially for women with menstrual irregularities, and is widely used in clinical practice.

bubble_chart Syndrome Differentiation

  1. blood deficiency.
  2. complexion is dull.
  3. dizziness and palpitation.
  4. menstrual irregularities.
  5. fine pulse.

bubble_chart Formula Modification

  1. blood stasis: add Peach Kernel, Carthamus called Peach Kernel, Carthamus and Four-Ingredient Decoction.
  2. qi deficiency: add Ginseng, Astragalus Root called Sage Cure Decoction.
  3. uterus cold with continuous bleeding: add Mugwort, Donkey-hide Gelatin.
  4. blood deficiency abdominal pain with slight sweating and aversion to wind: add Cassia Bark, Blast-Fried Ginger.
  5. blood deficiency with fatigue heat: add Peony Bark, Chinese Wolfberry Root-bark.
  6. blood deficiency headache: add Chrysanthemum Flower, Chinese Lovage, Uncaria.
  7. qi stagnation hypochondriac pain, abdominal pain: add Cyperus, Corydalis Tuber.
  8. head wind vertigo: add Gentian, Notopterygium.
  9. excessive menstruation: add Skullcap Root, White Atractylodes Rhizome, Donkey-hide Gelatin, Mugwort, Cyperus.
  10. postpartum beriberi: add Atractylodes Rhizome, Floweringqince Fruit, Coix Seed.
  11. premenstrual hematemesis: add Skullcap Root, Coptis Rhizome, Rhubarb Rhizoma called Three Yellow Four Ingredients Decoction.
  12. blood deficiency amenorrhea due to excess heat: add Rhubarb Rhizoma, Mirabilite, Liquorice Root called Jade Candle Powder.
  13. male urinary meatus bleeding: add amber, Achyranthes Root.

bubble_chart Cautions and Contraindications

Those with chronic spleen-stomach weakness, impaired digestion, poor appetite, and loose stools should use with caution.

bubble_chart Modern Application

This formula tonifies blood and regulates blood circulation. It is used for anemia, menstrual irregularities, amenorrhea, dysmenorrhea, urticaria, chronic skin diseases, traumatic injuries, neurogenic headaches, leukorrhea, infertility, menopausal disorders, hypertension, cerebral hemorrhage, autonomic nervous system disorders, pre- and post-natal conditions, and beriberi.

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