Pinyin: Yan Hu Suo / Xuan Hu Suo  Chinese: 延胡索 / 玄胡索
Pharmaceutical: Rhizoma Corydalis
Taxonomy: Corydalis yanhusuo seu ambigua seu glaucescens seu repens seu ternata seu turtschaninovii
English: Corydalis Rhizome

Tastes: Pungent, bitter, warm
Meridians Entered: Liver, Spleen

Actions & Indications:

1. Invigorates the Blood, regulates Qi and alleviates pain
   Chest and rib-side pain
   pain in stomach duct and abdomen, gastrointestinal spasm
   neuralgia
   Amenorrhea and dysmenorrhea, postpartum stasis stagnation abdominal pain
   Neuralgia
   Painful swelling from knocks and falls
2. Promotes sleep
   Insomnia

Standard Dosage: 3-10g in decoction.
Cautions: Avoid in pregnancy.

Pinyin: Dan Shen  Chinese: 丹參
Pharmaceutical: Radix Salviae miltiorrhizae
Taxonomy: Salvia miltiorrhiza
English: Red Sage Root / Salvia Root / Zi Dan Shen 紫丹參 (Purple Cinnabar Ginseng) / Xue Shen 血參 (Blood Ginseng)

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

Actions & Indications:

1. Invigorates the Blood and regulates menstruation, removes Blood stasis and relieves pain
   Irregular menstruation , amenorrhea , dysmenorrhea
   Abdominal masses, chest and abdominal pain
   Hot Bi Syndrome
2. Cools the Blood and soothes irritability
   Ying Stage Heat with restlessness, irritability, palpitations and insomnia
   Heart and Kidney Yin Deficiency
3. Reduces swellings
   Sores and swellings, early-stage breast abscesses
4. Nourishes the Blood and calms the Spirit
   Palpitations and insomnia due to Ying and Xue Stage Heat or Heart Blood Deficiency
5. Calms the Spirit agitated by Gu Parasites
   Agitation and restlessness caused by Heat from Gu Syndrome due to Blood Stasis or Blood deficiency
   Chronic inflammatory disease (Fruehauf, 2015)
   The Shen Nong Ben Cao Jing places it in the middle class of herbs and says it treats "Evil Qi in the Heart and abdomen with continual gurgling of the intestines like water running, cold and heat, and gatherings and accumulations. It breaks up concretions and eliminates conglomerations, relieves vexatious fullness, and boosts the qi."

Standard Dosage: 5-15g in decoction.
Cautions: Use with caution for pregnant women. Contraindicated to Li Lu.

Pinyin: Chuan Xiong  Chinese: 川芎
Pharmaceutical: Rhizoma Ligusticum
Taxonomy: Ligusticum chuanxiong syn. striatum syn. wallichii
English: Sichuan Lovage root / Cnidium root

Tastes: Pungent, warm
Meridians Entered: Liver and Pericardium

Actions & Indications:

1. Invigorates the Blood and promotes the movement of Qi
   Blood Stasis, especially in gynecology with dysmenorrhea, amenorrhea, difficult labor or retained lochia
   Qi and Blood Stagnation with pain and soreness in the chest, flanks and hypochondria
2. Expels Wind and alleviates pain
   Externally contracted Wind with headache, dizziness or painful obstruction (Bi Syndrome) - especially useful for headaches due to Wind-Heat, Wind-Cold or Blood Deficiency (depending on the combination)
   Wind skin disorders
3. Relieves the symptoms of Gu Syndrome while suppressing parasites (Fruehauf, 1998)
   Chronic inflammatory disease (Fruehauf, 2015)

Standard Dosage: 3-10g in decoction.
Cautions: It is contraindicated for headache due to Liver Yang rising or Yin deficiency with effulgent Fire because of its warm and dry properties.
Use with caution during pregnancy or in those who bruise or bleed easily.
May have synergistic effects in those taking anticoagulant drugs.

Pinyin: Bai Zhi  Chinese: 白芷
Pharmaceutical: Radix Angelicae dahuricae
Taxonomy: Angelica dahurica
English: Dahurian Angelica Root

Tastes: Pungent and warm
Meridians Entered: Lung, Stomach and Large Intestine

Actions & Indications:

1. Expels Wind, eliminates Dampness, unblocks the nasal passages, dispels Cold and alleviates pain
   External Wind-Cold patterns, especially with headache
   Supra orbital pain, nasal congestion and toothache, arthritis
   Any External Wind invasion of the Yangming channels of the head with a frontal headache
2. Reduces swelling, eliminates toxins and expels pus
   Early-stage superficial sores, boils and carbuncles, pruritis
3. Expels Dampness, alleviates discharge and treats leukorrhea and diarrhoea
   Vaginal discharge due to Cold-Dampness in the Lower Jiao
4. Releases the Exterior and Drives Out Snakes
   Chronic inflammatory disease (Fruehauf, 2015)
   One of the chief herbs for treating Gu Syndrome, along with Bo He and Zi Su Ye, classed as "open the exterior with snake killing herbs" (Fruehauf, 1998).
   Also used topically for fungal infections which may explain some of its anti-Gu actions.

Standard Dosage: 3-10g in decoction.
Cautions: It should be used with cautions for Blood Heat induced by Yin deficiency because of its pungent, fragrant, warm, dry property.

Pinyin: Ge Gen  Chinese: 葛根
Pharmaceutical: Radix Puerariae
Taxonomy: Pueraria lobata
English: Kudzu Vine Root

Tastes: Sweet, pungent, cool
Meridians Entered: Lung, Spleen and Stomach

Actions & Indications:

1. Discharges Exterior conditions and releases the muscles, especially of the neck and upper back
   Wind-Heat or Wind-Cold lodged in the muscles of the upper back and neck
2. Relieves Heat and generates fluids (relieves thirst)
   Thirst due to Stomach Heat or Wind-Heat or Wasting and Thirsting
3. Vents and discharges measles
   Measles with incomplete expression of the rash
4. Raises Spleen Yang and stops diarrhoea
   Diarrhoea or dysentery due to Heat
   Diarrhoea due to Spleen Deficiency (with appropriate herbs)
5. Lowers blood pressure
   Hypertension symptoms such as headache, dizziness, tinnitus or paresthesia

Standard Dosage: 3-10g in decoction.