Pinyin: Chen Pi  Chinese: 陈皮
Pharmaceutical: Pericarpium Citri Reticulatae
Taxonomy: Citrus spp.
English: Aged Tangerine Peel

Tastes: Pungent, bitter, warm
Meridians Entered: Spleen and Lung

Actions & Indications:

1. Regulates Qi, adjusts the Middle and relieves the diaphragm
   Spleen/Stomach Qi Stagnation with epigastric or abdominal distention, fullness, bloating, belching, nausea and vomiting
2. Dries Dampness and transforms Phlegm
   Phlegm-Damp Obstructs the Lung with coughing, a stifling sensation in the chest and/or diaphragm and copious, viscous sputum
   Turbid Damp Obstructs the Middle with a stifling sensation in the chest, abdominal distention, anorexia, fatigue, loose stools and a thick, greasy tongue coat
3. Helps prevent Stagnation from tonic herbs
   Tonic herbs causing Stagnation
4. Descends Qi
   Qi Rebellion
5. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of herbs which can, with protracted taking, remove foul breath, precipitate the Qi, and enable one to communicate with spirits. This may suggest it was part of supplementing the diet when engaging in an "avoiding grain" (Bigu 辟穀) fasting regime to cultivate life (Yangsheng 養生).
6. Suppresses Gu Parasites
   Gu Sydnrome (Fruehauf, 1998)
   Chronic inflammatory disease (Fruehauf, 2015)

Standard Dosage: 3-10g in decoction.

Pinyin: Qin Jiao  Chinese: 秦艽
Pharmaceutical: Radix Gentianae Macrophyllae
Taxonomy: Gentiana macrophylla
English: Large-leaf Gentian Root

Tastes: Pungent, bitter, slightly cold
Meridians Entered: Liver and Gallbladder

Actions & Indications:

1. Expels Wind-Dampness, opens the channels and soothes the sinews and collaterals
   Wind-Damp Bi and cramping, especially in the limbs
   Acute or chronic Cold disorders
2. Clears Deficiency Heat
   Yin Deficiency, especially with empty Fire (fever, Steaming Bone Disorder (骨蒸 Gu Zheng))
3. Resolves Dampness and reduces jaundice
   Damp-Heat jaundice, especially acute or infantile jaundice
4. Moistens the Intestines and unblocks the bowels
   Dry constipation
5. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the middle class of herbs which can, with protracted taking, make the body light, render a good facial complexion, slow ageing, prolong life, and enable one to communicate with spirits. This may suggest it was part of supplementing the diet when engaging in an "avoiding grain" (Bigu 辟穀) fasting regime to cultivate life (Yangsheng 養生).

Standard Dosage: 5-10g in decoction.

Pinyin: Fang Feng  Chinese: 防风
Pharmaceutical: Radix Saposhnikoviae seu Ledebouriellae
English: Siler

Tastes: Pungent, sweet, slightly warm
Meridians Entered: Lung, Liver and Spleen

Actions & Indications:

1. Releases the Exterior and expels External Wind
   Wind-Cold with headache, chills, aversion to Cold, and body aches
2. Expels Wind-Dampness and alleviates pain
   Wind-Damp Bi, especially with Wind predominant
3. Expels Internal Wind and stops spasms
   As an auxiliary for Liver Wind with trembling of hands and feet and tetany
   Intestinal-Wind due to imbalance between Spleen and Liver with recurrent tenesmus and painful diarrhoea with bright blood in the stool
   Migraine headaches
4. Relieves diarrhoea and stops bleeding
   Liver and Spleen Disharmony with recurrent painful diarrhoea, borborygmus and abdominal pain
5. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the middle class of herbs which can, with protracted taking, make the body light. This may suggest it was part of supplementing the diet when engaging in an "avoiding grain" (Bigu 辟穀) fasting regime to cultivate life (Yangsheng 養生).

Standard Dosage: 5-10g in decoction.
Cautions: It should be used with caution for blood deficiency and internal wind induced by heat because of its warm property.

Pinyin: Xi Xin  Chinese: 细辛
Pharmaceutical: Herba cum Radix Asari
Taxonomy: Asarum sieboldii
English: Chinese Wild Ginger

Tastes: Pungent, warm, slightly toxic
Meridians Entered: Lung, Kidney and Heart

Actions & Indications:

1. Releases Exterior Wind and Cold
   As an adjunctive for any exterior Wind-Cold especially with Dampness in Lung or underlying Yang Deficiency
   Frequently used for Wind-Cold when the dominant symptoms are head and body aches
2. Disperses Wind-Cold and Internal Cold and alleviates pain
   Pain due to Wind and/or Cold anywhere in the body, particularly headache, painful obstruction, abdominal pain or headache due to obstruction of Fluids and Blood by Cold, often with anhydrous Wind-Cold-Damp Bipain
3. Warms the Lungs and transforms Phlegm and Thin Mucus (circulates water)
   Cough and Qi which surges upward and fullness in the chest in the chest with continuous cough from clumped Qi in the chest and diaphragm marked by copious, watery sputum due to Phlegm-Damp or Wind-Cold with congested fluids
4. Disperses and unblocks the Qi of the nasal orifices (clears the orifices of the head)
   Nasal congestion
   Oral pathology
   Loss of consciousness
5. Promotes healing of oral ulcerations
   Oral lesions or ulcerations
6. Relieves toothache
   Toothache
7. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of herbs which can, with protracted taking, make the body light and prolong life. This may suggest it was part of supplementing the diet when engaging in an "avoiding grain" (Bigu 辟穀) fasting regime to cultivate life (Yangsheng 養生).

Standard Dosage: 1-3g in decoction.
Cautions: Traditionally contraindicated for headache due to hyperactivity of yang caused by yin deficiency and dry cough caused by lung dryness hurting yin. It is incompatible with Li Lu.

While not prohibited in the UK, the RCHM has enacted a voluntary ban by use due to possible fears of aristolochic acid. It is usually substituted with Gui Pi (Cinnamon Bark), or Rou Gui, or Gui Zhi and Qiang Huo for channel problems, Zi Su Ye and Bai Qian for lung issues, Gao Ban and Bai Zhi for treating the head and Cong Bai and Bai Zhi for the sinuses.

Pinyin: Huang Lian  Chinese: 黄连
Pharmaceutical: Rhizoma Coptidis
Taxonomy: Coptidis chinensis
English: Coptis Rhizome / Goldthread Rhizome

Tastes: Bitter, cold
Meridians Entered: Heart, Stomach, Large Intestine and Liver

Actions & Indications:

1. Clears Heat and drains Dampness
   Damp-Heat in the Stomach or Intestines with diarrhoea or dysenteric disorder
   Stomach Heat with vomiting and/or acid regurgitation
2. Drains Fire and resolves Fire toxicity
   Heat with Blazing Fire (Toxic Heat) with high fever. irritability, disorientation, delirium, a red tongue and a rapid, full pulse
   Heat from Excess with toxicity: painful, red eyes and a sore throat
   Boils, carbuncles and abscesses (Chuang Yung)
3. Clears Heat and stops bleeding
   Blood Heat with epistaxis, hematuria, hemafecia and hemoptysis
4. Clears Heat topically
   Infected wounds, red and painful eyes, ulcerations of the tongue and mouth (topical)
5. Clears Heart Fire (sedative)
   Heart Fire
   Lack of communication between the Heart and Kidneys
6. Drains Stomach Fire
   Stomach Fire
7. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of herbs which can, with protracted taking, improve memory. This may suggest it was part of supplementing the diet when engaging in an "avoiding grain" (Bigu 辟穀) fasting regime to cultivate life (Yangsheng 養生).

Standard Dosage: 2-10g in decoction.
Cautions: It is contraindicated for deficiency-cold syndrome. Because its taste is extremly bitter and dryness, overdosage and long-time taking will impair spleen and stomach, yin and fluids.

Pinyin: Mu Xiang  Chinese: 木香
Pharmaceutical: Radix Aucklandiae
English: Costus Root

Tastes: Pungent, bitter, warm
Meridians Entered: Spleen, Stomach, Large Intestine and Gall Bladder

Actions & Indications:

1. Promotes the movement of Qi and alleviates pain
   Spleen/Stomach Qi Stagnation with anorexia, a feeling of food sitting in the Stomach, epigastric or abdominal pain or distention, nausea and vomiting
   Liver or Gallbladder Qi Stagnation with flank pain, distention or soreness
2. Adjusts and regulates stagnant Qi in the Intestines
   Intestinal Qi Stagnation with diarrhoea or dysenteric disorders, abdominal pain and tenesmus
3. Strengthens the Spleen and prevents Stagnation
   Stagnation from tonic herbs, especially when the transportive and transformative functions of the Spleen are weak
4. Dispels Damp-Heat and harmonizes the Liver and Spleen
   Disharmony of the Liver and Spleen with hypochondriac pain and distention, a bitter taste in the mouth, a yellow tongue coat and possibly jaundice
5. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of herbs which can, with protracted taking, prevent oppressive Ghost Dreams whether sleeping during the day or the night. This may suggest it was part of supplementing the diet when engaging in an "avoiding grain" (Bigu 辟穀) fasting regime to cultivate life (Yangsheng 養生).
6. Suppresses Gu Parasites
   Gu Sydnrome (Fruehauf, 1998)
   Chronic inflammatory disease (Fruehauf, 2015)

Standard Dosage: 3-10g in decoction.

Pinyin: Feng Mi  Chinese: 蜂蜜
Pharmaceutical: Mel
Taxonomy: Apis mellifera
English: Honey

Tastes: Sweet, neutral
Meridians Entered: Spleen, Stomach, Lung and Large Intestine

Actions & Indications:

1. Nourishes the Spleen and Stomach and relieves pain
   Spleen and Stomach Deficiencies
   Assists herbal preparations by protecting the Spleen and Stomach
2. Moistens the Intestines
   Dry stool
   Constipation
3. Nourishes the Lungs and stops coughing
   Dry cough
4. Resolves Toxicity
   Heat toxins of the skin
   Ingestion of poisonous substances
   Open wounds; used for centuries to prevent infection and is currently supported by evidence (Tashkandi, 2021), and even recommended by the NHS (Oxford NHS trust, 2015)
5. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of animal products which can, with protracted taking, fortify the will (志 Zhi), make the body light and free from hunger, and prevent senility. This may suggest it was part of supplementing the diet when engaging in an "avoiding grain" (Bigu 辟穀) fasting regime to cultivate life (Yangsheng 養生). Honey is particularly interesting due to its high sugar content which contradicts the idea that Bigu was a keto diet but several reviews have concluded that honey lowers blood glucose levels and improves metabolic health (Meo et al., 2017; Bobis et al., 2018; Zamanian & Azizi-Soleiman, 2020; Ahmed et al., 2022)

Standard Dosage: Decocted in water, used to form pills, used to prepare herbs or applied to wounds.
Cautions: It is used with caution in cases of Damp obstruction, Phlegm stagnation, loose stool or diarrhoea because it can increase Dampness, and induce abdominal fullness.