Pinyin: Rou Gui  Chinese: 肉桂
Pharmaceutical: Cortex Cinnamomi
Taxonomy: Cinnamomum cassia
English: Cinnamon Bark

Tastes: Pungent, sweet, hot
Meridians Entered: Kidney, Spleen, Heart and Liver

Actions & Indications:

1. Warms the Kidneys, Spleen and Heart and strengthens Yang and Ming Men Fire
   Kidney Yang Deficiency and Deficiency of Ming-Men Fire with aversion to Cold, cold limbs, weak back, impotence and urinary frequency
   Spleen and Kidney Yang Deficiency with abdominal pain and Cold, reduced appetite and diarrhoea
   Kidney Unable to Grasp Qi
   Heart Yang Deficiency, particularly with chest Bi
2. Disperses deep Cold, warms the channels, unblocks the channels and vessels and alleviates pain
   Deep Cold causing Qi Stagnation or Blood Stasis with Cold in the Blood causing amenorrhea or dysmenorrhea, Cold-Damp Bi, Yin-type boils (chronic sores that are usually concave and ooze a clear fluid) and sores or abscesses that do not heal
   It enters the Blood aspect and, in small amounts, enhances the Blood moving action of other substances
3. Leads the Fire back to its source
   Upward Floating of Deficient Yang (False Heat, True Cold or Heat Above and Cold Below) with flushed face, wheezing, severe sweating (the sweat pours out like oil), weak and cold lower extremities and a deficient and rootless pulse
   Any condition with Heat in the Upper body (dry mouth, sore throat, or teeth which is worse at night) and Cold in the Lower body (Lower back pain, cold lower extremities, diarrhoea and weakness in the proximal portion of the pulse)
4. Assists in the generation of Qi and Blood
   Chronic Qi and Blood Deficiency (auxiliary)
5. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of herbs which can, with protracted taking, enable one to communicate with spirits, 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: 1-5g in decoction. It should be decocted later.
Cautions: It is contraindicated for syndrome of yin deficiency with fire effulgent, haemorrhage due to blood heat and pregnant women. It is incompatible with Chi Shi Zhi (nineteen incompatibilities).

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.

Pinyin: Huang Bai  Chinese: 黄柏
Pharmaceutical: Cortex Phellodendri
Taxonomy: Phellodendron amurense seu chinense
English: Amur Corktree Bark

Tastes: Bitter, cold
Meridians Entered: Liver, Gallbladder, Large Intestine, Kidney and Bladder

Actions & Indications:

1. Drains Damp-Heat especially from the Lower Jiao
   Thick, yellow vaginal discharge, foul smelling diarrhoea or dysenteric disorder
   Damp-Heat in the Lower Jiao
   Hot Leg Qi with red, swollen, painful knees, legs or feet
   Damp-Heat jaundice
2. Drains Kidney Fire (False Heat, Deficiency Heat)
   Kidney Yin Deficiency with Empty Fire Rising (steaming bone disorder, night sweats, afternoon fevers and sweating, occasionally with nocturnal emissions and spermatorrhea)
3. Drains Fire and relieves Fire toxicity
   Toxic sores and Damp-skin lesions (internally and topically)

Standard Dosage: 6-10g in decoction.
Cautions: It is contraindicated for deficiency-cold syndrome. Overdosage and long-time taking will impair spleen and stomach.

Pinyin: Zhu Ling  Chinese: 猪苓
Pharmaceutical: Polyporus Sclerotium
Taxonomy: Polyporus umbellatus / Grifola frondosa
English: Umbrella Polypore Mushroom

Tastes: Sweet, bland, neutral
Meridians Entered: Kidney, and Bladder

Actions & Indications:

1. Promotes urination and leaches out Dampness
   Dampness (Fluid Stagnation) with oedema, scanty urination, vaginal discharge, turbid painful urinary dysfunction (Milky Lin), jaundice and diarrhoea
   Can be used alone for Lin Syndrome during pregnancy
2. Dispels Damp-Heat
   Damp-Heat with turbid painful urinary dysfunction (Milky Lin) and jaundice
3. Resolves Nue (Malaria) and Toxicity
   The Shen Nong Ben Cao Jing places it in the lower class of herbs and says it treats "Nue and resolves Toxicity."
4. Expels Gu through the urine
   The Shen Nong Ben Cao Jing says it treats "Gu Toxins, Gu possession, and ill omens (不祥) by benefiting the waterways."
5. Aids fasting
   The Shen Nong Ben Cao Jing mentions that, with protracted taking, it makes the body light and slows 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: 6-12g in decoction. Mushrooms should ideally be decocoted for at least 40 minutes and preferably 1-2 hours to fully extract the polysaccharides from within the chitin cell walls.

Pinyin: Fu Ling  Chinese: 茯苓
Pharmaceutical: Poria
Taxonomy: Poria cocos syn. Wolfiporia extensa
English: China-Root / Hoelen / Tuckahoe / Indian Bread

Tastes: Sweet, bland, neutral
Meridians Entered: Heart, Spleen, and Kidney

Actions & Indications:

1. Strengthens the Spleen and harmonizes the Middle Jiao
   Spleen Deficiency Dampness with anorexia, diarrhoea and epigastric distention
2. Strengthens the Spleen
   Phlegm Dampness due to Spleen Deficiency with thin mucus in which Phlegm moves upward manifesting as palpitations, headache, dizziness and a thick, greasy tongue coat
3. Promotes urination and leaches out Dampness
   Urinary difficulty, diarrhoea or oedema due to Stagnation of Fluids or Dampness
4. Quiets the Heart, calms the Spirit and soothes the nerves
   Palpitations, insomnia or forgetfulness due to either Spleen and Heart Insufficiency or Internal Obstruction of Turbid Phlegm
5. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of herbs which can, with protracted taking, quiet the Hun, nourish the Shen, make one free from hunger 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: 9-15g in decoction.
Cautions: It is contraindicated for spermatorrhea due to deficiency-cold.

Pinyin: Ze Xie  Chinese: 澤瀉
Pharmaceutical: Rhizoma Alismatis
Taxonomy: Alisma plantago-aquatica seu orientale
English: Water Plantain Rhizome

Tastes: Sweet, bland, cold
Meridians Entered: Kidney and Bladder

Actions & Indications:

1. Promotes urination and leaches out Dampness
   Stagnation due to Dampness with urinary difficulty, painful urinary dysfunction, diarrhoea and dizziness
   Especially useful for Damp-Heat in the Lower Jiao
2. Settles Ministerial Fire in the Kidneys by draining Damp-Heat from the lower Jiao
   Spermatorrhea due to Damp-Heat in the Lower Jiao disturbing the ministerial Fire of the Kidneys
3. Drains Kidney Fire
   Kidney Yin Deficiency with Fire Rising
4. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of herbs which can, with protracted taking, sharpen the ears and eyes, make one free from hunger, prolong life, make the body light, render the face brilliant, and enable one to walk over water. 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: 4.5-15g in decoction. Sometimes up to 30g in extreme cases.
Cautions: Overdose, extended use or combination with diuretic drugs could cause electrolyte imbalance due to diuretic effect.

Pinyin: Hua Shi  Chinese: 滑石
Pharmaceutical: Talcum / Magnesium Silicate
Taxonomy: Mg₃Si₄O₁₀(OH)₂
English: Talc / Talcum Powder

Tastes: Sweet, bland and cold
Meridians Entered: Bladder, Lung and Stomach

Actions & Indications:

1. Promotes urination and drains Heat from the Urinary Bladder (aids the movement of gravel and stones), (expels Damp-Heat)
   Hot Painful Urinary Dysfunction (Lin Syndrome) with hot, painful urination, dark, painful, burning, scanty urine
   Damp-Heat diarrhoea
   Qi Level Heat with Dampness with unremitting fever, heavy feeling in the body, thirst, yellow tongue coat
2. Releases Summeheat and resolves Dampness
   Summerheat (fever, urinary difficulty, thirst)
3. Absorbs Dampness and clears Heat (topically)
   Damp skin lesions (eczema, damp sores, prickly heat)
4. Stops bleeding due to Heat
   Heat type bleeding
   Nosebleed, vomiting blood (taken internally) Bleeding from wounds and sores (topical)
5. Aids fasting
   Mentioned in the Shen Nong Ben Cao Jing as part of the superior class of minerals which can, with protracted taking, make the body light, free from hunger 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: 10-20g in decoction, or applied externally.
Cautions: Talc can cause granulomas in the rectum, vagina or wounds and prolonged external use has also been linked to ovarian (Wentzensen & O'Brien, 2021), stomach (Chang et al., 2020) and lung (Chang et al., 2017) cancer but other reviews contradict these findings (Goodman et al., 2020) suggesting this may only be an effect seen in rats (Prueitt et al., 2024). For safety it should therefore not be used for prolonged periods.

It should also not be in inhaled as it can cause lung irritation and remain in the body for up to 40 years (Johnson, 2021).

Mineral 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 Chi Fu Ling and Ze Xie.

Pinyin: Bian Xu  Chinese: 萹蓄
Pharmaceutical: Herba Polygoni Avicularis
Taxonomy: Polygonum avicularis
English: Knotweed / Common Knotgrass / Polygonum

Tastes: Bitter, slightly cold
Meridians Entered: Bladder

Actions & Indications:

1. Drains Damp-Heat from the Urinary Bladder, promotes urination and unblocks painful urinary dysfunction
   Damp-Heat Painful Urinary Dysfunction (Lin Syndrome)
   Damp-Heat jaundice
2. Expels parasites and stops itching
   Damp lesions with itch including tinea
   Intestinal parasites such as tapeworm, hookworm and pinworm
3. Kills the Three Worms
   Said in the Shen Nong Ben Cao Jing that it removes the Three Worms. These may refer to difficult to treat metabolic disorders caused by overindulgence and should be accompanied by fasting, meditation and exercise regimes.

Standard Dosage: 9-15g in decoction.