Pinyin: Zi Cao  Chinese: 紫草
Pharmaceutical: Radix Lithospermi seu Arnebiae
English: Purple Gromwell Root / Chinese Stoneseed Root

Tastes: Bitter, pungent, cold
Meridians Entered: Heart and Liver

Actions & Indications:

1. Clears Heat, cools the Blood, invigorates Blood circulation, relieves Fire toxins and encourages rashes
   Xue Stage Heat, Blood Heat, Toxic Heat and dark purple rashes (measles, chicken pox)
2. Moistens the Intestines, unblocks the bowels and promotes urination
   Blood Heat constipation and rashes accompanied by constipation and/or urinary dysfunction
3. Clears Damp-Heat from the skin (aids healing of tissues)
   Damp-Heat skin lesions or vaginal itching topically Burns and wounds topically

Standard Dosage: 5-10g in decoction. For external use it is usually soaked in oil.
Cautions: It is contraindicated in cases of diarrhea due to spleen deficiency, for its defecation-promoting action.
In the UK it is prohibited for internal use due to pyrrolizidine alkaloid content. External use is still permitted.

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: Da Huang  Chinese: 大黄
Pharmaceutical: Radix et Rhizoma Rhei
Taxonomy: Rheum palmatum
English: Chinese Rhubarb Root

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

Actions & Indications:

1. Drains Heat and purges accumulations
   Intestinal Heat Excess, with high fever, profuse sweating, thirst, constipation, abdominal distention and pain, delirium, a yellow tongue coat and a full pulse
   Yang-Ming Fu Stage
   Qi Level Heat in the Intestines
2. Drains Fire
   Fire from Excess with intense fever, sore throat, and painful eyes and constipation
   Fire toxin sores due to Xue Level Heat, especially with constipation
3. Clears Heat, transforms Dampness and promotes urination
   Damp-Heat with oedema, jaundice, painful urinary dysfunction and acute, hot dysenteric disorders
4. Drains Heat from the Blood
   Bloody stool either from hemorrhoids or Heat in the Intestines
   Chaotic movement of hot Blood with hemoptysis or epistaxis with constipation
   It can be powdered and administered orally for bleeding in the upper digestive tract
5. Invigorates the Blood and dispels Blood Stasis
   Blood Stasis with amenorrhea, fixed abdominal masses or fixed pain
   Blood Stasis due to traumatic injury
   Intestinal abscess
6. Clears Heat and reduces Fire toxicity
   Topically or internally for burns or skin lesions (Chuang Yung) due to Heat
7. Clears Heat and eliminates Phlegm
   Chronic Accumulation of Phlegm-Heat with cough, dyspnea, mania, disorientation and other symptoms of Phlegm Misting the Heart

Standard Dosage: 10-15g in decoction. Excessive decoction will reduce the purgative action. Therefore it should be added at end to achieve this purpose and over-decocted to eliminate this action.
Cautions: It should be used with caution in case of spleen and stomach deficiency for its bitter and cold property which is easily to damage stomach qi. It is contraindicated to women during pregnancy, menstruation or lactation for it has actions of activating blood and resolving stasis, and can make the purged substances follow lactating out.

Pinyin: Ma You  Chinese: 香油
Pharmaceutical: Oleum Sesami
English: Sesame Oil

Tastes: Sweet, cool

Actions & Indications:

1. Moistens Dryness
    
2. Promotes bowel movement
    
3. Neutralizes toxins
    

Standard Dosage: Normally used as a medium for external applications.
Cautions: It is contraindicated in case of spleen deficiency and loose stool.

Pinyin: Feng La  Chinese: 蜂蜡
Pharmaceutical: Cera Flava
English: Beeswax

Tastes: Sweet, slightly warm
Meridians Entered: Spleen

Actions & Indications:

1. Arrests discharges, promotes healing of wounds, promotes tissue regeneration and alleviate pain
   Ulcer which is difficult to heal, wounds, burns and scalds, ecthyma erosion, ulcerated trauma
2. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of animal products which can boost the Qi, make one free from hunger, and siow aging. 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) but is not recommended for protracted taking like many other superior class products.

Standard Dosage: Melted into Ma You in approx 1:3 - 1:9 ratio to make external ointments.