Yibian
 Shen Yaozi 
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formula nameFive Ingredients with Poria Powder
sourceTreatise on Cold Damage and Miscellaneous Diseases
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bubble_chart Preparation and Dosage

Polyporus (Polyporus) 9gm
Alisma (Rhizoma Alismatis) 15gm
White Atractylodes Rhizome (Rhizoma Atractylodis Macrocephalae) 9gm
Poria (Poria) 9gm
Cinnamon Twig (Ramulus Cinnamomi) 6gm

bubble_chart Efficacy

Promoting urination and draining dampness, warming yang and transforming qi.

bubble_chart Indications

  1. Exterior pathogen with internal retention of water-dampness. Headache, fever, thirst with desire to drink or vomiting immediately after drinking, difficulty in urination, white tongue coating, and floating pulse.
  2. Syndrome/pattern of internal retention of water-dampness, edema, diarrhea, difficulty in urination, cholera with vomiting and diarrhea.
  3. Phlegm-fluid retention with palpitations below the navel, vomiting of frothy saliva and dizziness, or shortness of breath with cough.

bubble_chart Formula Principles

This formula is primarily used to treat internal water-dampness retention, weakened bladder qi transformation function, leading to thirst, vomiting upon drinking water, difficulty in urination, and unresolved exterior syndrome/pattern with symptoms such as headache and fever. Due to the unresolved exterior pathogen, which externally follows the great yang meridian and internally transmits to the great yang bladder organ, causing impaired bladder qi transformation, water accumulates in the lower energizer, resulting in both great yang meridian and organ disorders. Externally, this manifests as headache, fever, and a floating pulse; internally, it causes difficulty in urination. Water accumulation in the lower energizer prevents the distribution of body fluids, leading to excessive thirst and a desire to drink, known as the "water retention" syndrome. If water stagnates in the stomach, it causes vomiting upon drinking water, termed the "water counterflow" syndrome. Spleen deficiency leads to impaired water transportation, causing water-dampness to overflow into the skin and meridians, resulting in edema and a heavy body. Water flowing into the large intestine causes diarrhea. The root cause is the accumulation of water and dampness. The formula uses Poria, Polyporus, and Alisma to dredge and regulate water passage, expelling dampness and promoting urination; White Atractylodes Rhizome to invigorate the spleen and dry dampness. These four herbs together have the effect of dispelling dampness and promoting urination. Cinnamon Twig warms and unblocks yang qi, enhancing the bladder's qi transformation function to promote urination. It also alleviates headache, fever, and other exterior syndrome/pattern symptoms, while facilitating the full effectiveness of the urination-promoting and dampness-draining herbs. Therefore, the therapeutic effect of this formula lies in transforming bladder qi to promote urination, activating spleen yang to control water, distributing fluids to the skin and hair to induce sweating, and evaporating fluids to the mouth and tongue to quench thirst.

bubble_chart Syndrome Differentiation

  1. Difficulty in urination.
  2. Vomiting and diarrhea.
  3. Phlegm-fluid retention, spitting saliva and foam.
  4. White tongue coating.
  5. Floating pulse.

bubble_chart Formula Modification

  1. middle energizer heat accumulation: add Gypsum, Talc, Calcitum.
  2. cold-dampness: add Atractylodes Rhizome.
  3. dampness-heat jaundice: add Virgate Wormwood
  4. cold abdominal colic: add Fennel, lychee seed.
  5. scrotal edema: add Plantain Seed, Akebia Stem.
  6. summerheat dampness diarrhea: add Patchouli, Fortune Eupatorium.
  7. dampness-heat diarrhea: add Lonicera, Virgate Wormwood.
  8. qi stagnation abdominal distension and fullness: add Magnolia Bark, Dried Tangerine Peel.
  9. severe edema: combine with Five-Peel Decoction.
  10. acute gastroenteritis: combine with Stomach-Calming Powder.
  11. summerheat vexation and thirst: combine with White Tiger Decoction.
  12. summerheat injury diarrhea: combine with Coptis Rhizome Chinese Mosla Drink.

bubble_chart Modern Application

This formula promotes diuresis, regulates water metabolism, protects the liver, enhances immune function, improves blood circulation, and enhances kidney function. It is used for vomiting and diarrhea caused by the common cold, gastroenteritis, gastric atony, gastroptosis, persistent fluid retention, autointoxication, water counterflow, indigestion, morning sickness, seasickness, excessive salivation, nephritis, cardiac edema, uremia, scrotal edema, habitual headache, migraine, trigeminal neuralgia, sunstroke, dacryocystitis, conjunctivitis, eye stars, nyctalopia, skin blisters, chickenpox, glaucoma, and Meniere's syndrome.

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