Pinyin: Chai Hu  Chinese: 柴胡
Pharmaceutical: Radix Bupleuri
Taxonomy: Bupleurum chinense (Nan Chai Hu) seu scorzoneraefolium (Bei Chai Hu)
English: Hare's Ear Root / Thorowax Root

Tastes: Bitter, pungent, slightly cold
Meridians Entered: Liver and Spleen

Actions & Indications:

1. Resolves Shaoyang disorders and reduces fever (harmonizes the Exterior and Interior)
   Shaoyang Stage with alternating chills and fever, a bitter taste,dizziness, tinnitus, flank pain, irritability, vomiting and a stifling sensation in the chest
   Deficiency Heat (auxiliary)
   Gallbladder Fire
   The Shen Nong Ben Cao Jing says "It weeds out the stale to bring forth the new."
2. Spreads Liver Qi and relieves Stagnation
   Liver Qi Stagnation with dizziness, vertigo, chest and flank pain, emotional instability and menstrual problems
   Disharmony between the Liver and Spleen with epigastric and flank pain, a stifling sensation in the chest, abdominal bloating, nausea and indigestion
   Liver/Gallbladder Disharmony
   The Shen Nong Ben Cao Jing says "It mainly treats bound qi in the heart, abdomen, intestines, and stomach, food stagnation, cold and heat, and evil qi."
3. Raises Yang Qi (specifically the Clear Qi of the Stomach and Gallbladder)
   Spleen and Stomach Yang Deficiency, Qi collapse (prolapse) with hemorrhoids, vaginal discharge, bleeding or exhaustion
4. Disperses Wind-Heat and resolves Phlegm and congestion
   Wind-Heat
5. Guides herbs to the Shaoyang aspects of the head
   Shaoyang headaches
6. Releases the Exterior and Drives Out Snakes
   Relieves the symptoms of Gu Sydnrome while suppressing parasites (Fruehauf, 1998)
   Chronic inflammatory disease (Fruehauf, 2015)
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, brighten the eyes and boost the Essence. 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: Up to 3g to raise sinking Qi, 6-9g to relieve Liver Qi stagnation, 12-24g to release the exterior.
Cautions: Anyone who has syndromes of yin deficiency with yang hyperactivity, stirring of liver wind, yin deficiency with effulgent fire and qi going upward adversely, this herb should be used with cautions.

Pinyin: Bie Jia  Chinese: 鳖甲
Pharmaceutical: Carapax Trionycis
English: Soft Turtle Shell

Tastes: Salty, cold
Meridians Entered: Liver and Kidney

Actions & Indications:

1. Nourishes Yin and anchors Yang
   Yin Deficiency with fever, steaming bone disorder, night sweats or consumption
   Internal stirring of Liver Wind
2. Invigorates the Blood, promotes menstruation, softens hardness and dissipates nodules
   Chest and flank accumulations with pain and amenorrhea
   Excessive menstruation due to Hot Blood
   Malarial disorders with palpable masses
3. Heavily anchors, descends, unblocks and facilitates the functions of the Blood vessels
   Problems in children due to internal clumping

Standard Dosage: 10-15g in decoction.
Cautions: Animal products are prohibited from use in the UK under the Medicines Act 1968 ch. 67 which restricts herbalists to the use of plant products only. It is generally substituted with Qing Hao and Sheng Di Huang, or Huang Jing.

Turtles may also act as viral reservoirs and have been proposed as the potential intermediate host for coronavirus between bats and humans (Liu et al., 2020.

Pinyin: Di Gu Pi / Gou Qi Gen Pi  Chinese: 地骨皮 / 枸杞根皮
Pharmaceutical: Cortex Lycii
Taxonomy: Lycium barbarum seu chinense
English: Goji Berry Root Bark / Wolfberry Root Bark / Boxthorn ROot Bark

Tastes: Sweet, slightly bitter, cold
Meridians Entered: Liver, Kidney and Lung

Actions & Indications:

1. Cools the Blood and drains Yin Deficiency Fire (steaming bones) - (drains Kidney Fire, eliminates lurking Heat, and clears Heat from the bones)
   Yin Deficiency with Empty Fire Rising (Kidney Fire) with night sweats, steaming bone disorder with sweating, chronic low-grade fever, irritability and thirst
   Toothache from Floating Fire in the Kidney channel
2. Clears and drains Heat in the Lung
   Lung Heat cough or wheezing
3. Clears Heat, cools the Blood and stops bleeding
   Various bleeding disorders characterized by Heat in the Blood
4. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of herbs which can, with protracted taking, fortify the sinews and bones, make the body light, and slow ageing. 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: 9-15g 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: Dang Gui  Chinese: 當歸
Pharmaceutical: Radix Angelicae sinensis
Taxonomy: Angelica sinensis
English: Chinese Angelica Root / Tang-Kuei / Dong Quai Root

Tastes: Sweet, Pungent, Warm
Meridians Entered: Heart and Liver

Actions & Indications:

1. Tonifies the Blood and regulates the menses
   Blood Deficiency, especially when affecting the Heart and Liver with pale, ashen complexion, lusterless nails, tinnitus, blurred vision and palpitations
   Blood Deficiency associated irregular menstruation, amenorrhea and dysmenorrhea
2. Invigorates and harmonizes the Blood and disperses Cold (stops pain due to Blood Stasis)
   Blood Stasis causing abdominal pain and carbuncles and pain due to Blood Stasis from traumatic injury, especially when accompanied by Deficiency Cold
   Postpartum menstruation
   Pregnancy (use with caution)
   Blood Deficiency with chronic Wind-Damp-Bi
3. Moistens the Intestines and unblocks the bowels
   Dry Intestines due to Blood Deficiency
4. Reduces swelling, expels pus, generates flesh and alleviates pain
   Sores and abscess (Chuang Yung), internally and topically
5. Stops coughing and treats dyspnea
   Used adjunctively for coughing
6. Tonifies the Blood while suppressing Parasites
   Gu Sydnrome (Fruehauf, 1998)
   Chronic inflammatory disease (Fruehauf, 2015)

Standard Dosage: 6-12g in decoction.
Cautions: It is contraindicated in cases of Damp-Heat stagnating in the Middle, Lung Heat with Phlegm Fire, and Yin deficiency with effulgent Yang because it is warm and sweet in properties. In addition, it should be used with caution in cases of loose stool because it can moisten intestines to smooth stool.

Many sources recommend using caution, avoiding or only taking under guidance of a TCM physician during pregnancy as it can cause uterine contractions. However, there are no studies supporting this and the only scientific literature seems to suggest that Z-Ligustilide has anti-spasmodic activities that alleviate dysmenorrhoea by inhibiting uterine contractions (Du et al., 2006; Dietz et al., 2016).

Caution is also advised in breast cancer patients due to its oestrogen stimulating activity. This based upon Lau et al (2005) who found it may stimulate breast cancer growth in vitro, however Yue et al, (2019) demonstrated that it is not that stimulatory in breast cancer both in vitro and in vivo through a series of tests, although they suggested it should still be used with caution in estrogen receptor-positive breast cancer. Conversely, a large population study in Taiwan by Wu et al (2014) found it reduced the subsequent risk of endometrial cancer in breast cancer survivors taking tamoxifen, especially in those of reproductive age.

Pinyin: Zhi Mu  Chinese: 知母
Pharmaceutical: Rhizoma Anemarrhenae
Taxonomy: Anemarrhena asphodeloides
English: Anemarrhena Rhizome

Tastes: Bitter, sweet, cold
Meridians Entered: Lung, Stomach and Kidney

Actions & Indications:

1. Clears Heat and drains Fire (Clears Heat from the Qi Stage, from the Lungs and from the Stomach)
   Heat in the Qi Stage with high fever, irritability, restlessness, thirst and a rapid, flooding pulse.
   Lung Heat and Dryness with cough and expectoration of thick, yellow Phlegm
   Yang Ming Heat
   Stomach Heat
2. Nourishes Yin and moistens Dryness
   Lung and Kidney Yin Deficiency with night sweats, steaming bone disorder, irritability, afternoon or low grade fever, Five Sole Heat and bleeding gums
   (Stomach Yin Deficiency)
   Kidney Heat with spermatorrhea, nocturnal emissions and an abnormally elevated sex drive
3. Generates Fluids, clears Deficiency Fire and quenches thirst
   Oral ulcers and inflammation, steaming bones and Xiao Ke (diabetes) due to Yin Deficiency
4. Ameliorates the Dryness of tonifying or warming herbs
   For use with herbs such as Rx. Astragali Huang Qi, Ram. Cinnamomi Gui Zhi, Rx. Aconiti Lateralis Preparata Zhi Fu Zi when there is concern that these herbs may be too drying

Standard Dosage: 5-15g in decoction.
Cautions: It is not suitable for deficiency cold syndrome. Being cold and moist in property, it is prohibited to be used for those who have a spleen-deficiency diarrhea.