Pinyin: Gan Sui  Chinese: 甘遂
Pharmaceutical: Radix Euphorbia Kansui
English: Sweet Spurge Root

Tastes: Bitter, cold, toxic
Meridians Entered: Lung, Kidney, and Large Intestine

Actions & Indications:

1. Drains water downward and eliminates congested fluids and thin mucus
   Severe accumulation of fluid in the chest and abdomen Generalized oedema, facial oedema and abdominal distention
2. Expels Phlegm
   Epilepsy due to Phlegm Blocking the Heart Orifices Seizures from Wind-Phlegm Withdrawal mania from recalcitrant Phlegm congealing and clumping
3. Clears Heat, reduces swelling and disperses hardenings
   Swollen, painful, nodular Damp-Heat skin lesions (topical-appropriate for early stages, with oral ingestion of herbs that clear Heat and resolve toxicity)

Standard Dosage: 0.5-1g in powder form. The active form does not dissolve in water so decoction should be avoided.
Cautions: It is contraindicated to the pregnant women and those anxious about their health. It is antagonistic to Gan Cao.

Pinyin: Ban Xia  Chinese: 半夏
Pharmaceutical: Rhizoma Pinelliae
Taxonomy: Pinellia ternata
English: Pinellia Rhizome

Tastes: Pungent, warm, toxic
Meridians Entered: Lung, Spleen and Stomach

Actions & Indications:

1. Dries Dampness and transforms Phlegm
   Cold-Phlegm in the Lungs (cough with copious sputum)
   Especially effective for Damp-Phlegm of the Spleen (Cold-Damp Stagnation)
2. Descends Rebellious Qi and stops vomiting (harmonizes the Stomach)
   Vomiting due to Phlegm-Damp in the Stomach (Tan Yin), Cold thin mucus, Stomach Deficiency, Stomach Heat or pregnancy
3. Dissipates nodules and reduces Stagnation (clumps)
   Phlegm in the chest (nodules, pressure, distention, pain)
   Phlegm nodules in the neck (goiter, scrofula)
   Focal distension in the chest and epigastrium
   Obstruction caused by Phlegm anywhere in the body
4. Treats sores, skin ulcerations and carbuncles and reduces swelling (external)
   Topically as a powder for sores, skin ulcerations and carbuncles

Standard Dosage: 3-10g in decoction.
Cautions: Contraindicated to Wu Tou. Use with cautions during gestation.

Must be processed before use as raw Ban Xia is toxic. Ingesting the raw form can cause severe irritation of the mouth, pharynx, and gastrointestinal tracts, and has toxic effects on the nervous system. Symptoms of toxicity include a dry mouth, numbness of the tongue, gastric discomfort, burning sensations and swelling of the mouth, tongue, throat and salivation. In serious cases ingesting Ban Xia can result in hoarseness, spasms, dyspnoea and asphyxia.

Processing can be done with ginger and alum (Jiang Ban Xia) to make a warming herb best suited for Cold-Damp and thin Phlegm conditions, or with liquorice (Fa Ban Xia) to make a more neutral herb that is less drying and can be used for Damp-Heat conditions too.

Pinyin: Shao Yao  Chinese: 芍药
Pharmaceutical: Radix Paeoniae
Taxonomy: Paeoniea lactiflora
English: Peony Root

Tastes: Bitter, sour, sweet, slightly cold
Meridians Entered: Spleen and Liver

Actions & Indications:

1. Nourishes the Blood and regulates menstruation
   Liver Blood Deficiency with menstrual dysfunction, vaginal discharge and uterine bleeding accompanied by a pale face, a lusterless complexion and dull, lusterless nails
   Anemia
   Breast distention and premenstrual syndrome
2. Astringes Yin and adjusts the Ying and Wei
   Yin Deficiency sweating
   Sweating due to Yin Collapse
   Disharmony between the Liver and Spleen Disharmony between the Ying and Wei with non-productive sweating
3. Calms Liver Yang and Liver Wind and alleviates pain
   Liver Qi Stagnation with Liver Yang Rising
   Liver Wind with Yin and Blood Deficiency
   Bi syndrome due to Blood Deficiency with pain and spasms
4. Softens the Liver and relieves pain
   Diarrhoea, borborygmus and abdominal pain
   Dysenteric disorders with tenesmus
5. Expels Gu Parasites
   Chronic inflammatory disease (Fruehauf, 2015)

Standard Dosage: 10-30g in decoction.

Pinyin: Gan Cao  Chinese: 甘草
Pharmaceutical: Radix Glycyrrhizae
Taxonomy: Glycyrrhiza uralensis seu glabra seu inflata
English: Liquorice Root

Tastes: Sweet, slightly cold
Meridians Entered: Heart, Lung and Spleen (and all 12 meridians)

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
   Bites (after washing the wound, chew Gan Cao and apply a thick layer on the bite wound, changing whenever it dries out; Bao Xiang-Ao, 1846, New Compilation of Proven Formulas)
6. Moderates and harmonizes the harsh properties of other herbs and guides the herbs to all twelve channels
   Often added in small doses to harmonise formulas
7. Tonifies the Qi while suppressing Parasites
   Gu Sydnrome (Fruehauf, 1998)
   Chronic inflammatory disease (Fruehauf, 2015)
8. 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: Typically 1.5-9g in decoction. Large doses can be up 30g.
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.

The NHS recommends avoiding during pregnancy.