Pinyin: Sheng Di Huang  Chinese: 生地黃
Pharmaceutical: Radix Rehmanniae
Taxonomy: Rehmannia glutinosa
English: Chinese Foxglove Root / Rehmannia Root

Tastes: Sweet, bitter, cold
Meridians Entered: Heart, Liver, Stomach and Kidney

Actions & Indications:

1. Clears Heat and cools the Blood
   Ying Stage Heat with high fever, thirst and a scarlet tongue
   Xue Stage Heat
   Hemorrhage due to Blood Heat
2. Nourishes Yin, generates fluids, increases saliva and treats wasting and thirsting
   Yin Deficiency with Heat signs
   Injury to fluids
   Throat pain due to Yin Deficiency
   Wasting and thirsting disorder (消渴 Xiao Ke - diabetes)
3. Cools Heart Fire
   Heart Fire
4. Calms the Spirit agitated by Parasites damaging the Yin
   Gu Sydnrome (Fruehauf, 1998)
   Chronic inflammatory disease (Fruehauf, 2015)
5. Breaks up Blood Stasis, expels Cold and Hot Bi, replenishes Bone Marrow and promotes the growth of Muscles and Flesh
   Broken bones or severed sinews from falls and a damaged center (Shen Nong Ben Cao Jing)
6. 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 prevent forgetfulness. 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: 10-15g in decoction.
Cautions: It is contraindicated in cases of diarrhea, abdomen distention due to spleen deficiency.

Pinyin: Mu Tong  Chinese: 木通
Pharmaceutical: Caulis Akebiae seu Caulis Clematis
Taxonomy: Akebia trifoliata, A. quinata, A. trifoliata var. australis seu Clematis armandii
English: Akebia or Clematis Stem

Tastes: Bitter, cool
Meridians Entered: Heart, Small Intestine and Bladder

Actions & Indications:

1. Promotes urination and unblocks painful urinary dysfunction
   Damp-Heat Painful Urinary Dysfunction (Lin Syndrome) with dribbling, painful and rough urination
   Oedema and ascites
2. Drains Heart Heat through the Small Intestine
   Small Intestine Shi Heat with irritability accompanied by mouth or tongue sores and scanty urination
3. Promotes lactation and unblocks Blood vessels
   Lactation Insufficiency
   Amenorrhea and pain and stiffness of the joints (Heat Bi)

Standard Dosage: 3-6g in decoction.
Cautions: It is contraindicated for qi deficiency, spermatorrhea and pregnant women.

This herb is prohibited from use in the UK under the banned and restricted herbal ingredients list issued by the MHRA because it can also refer to Aristolochia manshuriensis (Guan Mu Tong) which contains toxic aristolochic acid. In some European countries with statutory testing of imports the species can be identified but the UK has chosen to ban all species to avoid regulation. It is generally substituted with Qu Mai or Tong Cao.

Pinyin: Deng Xin Cao  Chinese: 灯心草
Pharmaceutical: Medulla Junci
Taxonomy: Juncus effusus
English: Bulrush Pith / Rush Pith

Tastes: Sweet, mild, slightly cold
Meridians Entered: Heart, Lung and Small Intestine

Actions & Indications:

1. Promotes urination, leaches out Dampness and unblocks painful urinary dysfunction
   Heat Excess Hot painful urinary dysfunction with dark, scanty urination
2. Clears Heat from the Heart channel by directing Fire downward and calms the Spirit
   Pediatric sleep disorders with dark, scanty urine and irritability (especially at night) (can be used alone)
   Lack of Communication between the Heart and Kidneys with insomnia and restless sleep
   Heart Fire with Kidney Yin Deficiency
   Heart and Kidney Yin Deficiency
   Small Intestine Shi Heat
3. Clears Lung Heat
   Sore throat (charred internally and topically relieves pain)
4. Cools the Blood and stops bleeding
   Use charred to stop bleeding

Standard Dosage: 1-3g in decoction.
Cautions: It is contraindicated in case of urinary incontinence or deficiency-cold in lower energizer.

Pinyin: Gan Cao Shao  Chinese: 甘草梢
Pharmaceutical: Apex Radicis Glycyrrhizae
Taxonomy: Glycyrrhiza uralensis seu glabra
English: Licorice Root Tips

Tastes: Sweet, cold
Meridians Entered: Heart, Liver and Spleen

Actions & Indications:

1. Tonifies the Spleen and augments Qi
   Spleen Qi Deficiency with shortness of breath, lassitude and loose stools
   Qi and Blood Deficiency with an irregular pulse and/or palpitations
   Heart Qi Deficiency or Heart Yang Deficiency
2. Moistens the Lungs, resolves Phlegm and stops coughing
   Lung Heat or Cold
   Productive or non-productive coughing
3. Moderates spasms and alleviates pain
   Painful muscle spasms of the abdomen and legs
4. Clears Heat and relieves Fire toxicity
   Raw for Toxic Heat with sore throat or carbuncles and sores (Chuang Yung)
5. Antidote for many toxic substances (internal and topical)
   Poisoning
6. Moderates and harmonizes the harsh properties of other herbs and guides the herbs to all twelve channels
    

Standard Dosage: 1.5-4.5g in decoction.
Cautions: It is contraindicated for combining with Hai Zao, Da Ji, Gan Sui and Yuan Hua because of "eighteen antagonisms". It is also contraindicated in cases of dampness obstruction in middle energizer and edema because it can help dampness obstruct qi, and it is prohibited from long-term usage in large dosage (more than 20g/day) and should be avoided or used with extreme caution in patients with high blood pressure because it may raise aldosterone levels in the blood causing retention of sodium.

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.