Chun Pi - 椿皮 - Cortex Ailanthi

Pharmaceutical Latin:	Cortex Ailanthi
Common English:	Ailanthus Bark or Root Bark Tree of Heaven Bark

Category

Herbs that Stabilize and Bind

Properties

Taste	Temperature	Entering Meridians	Dosage
Bitter Astringent	Cold	Large Intestine Stomach (Liver) (Lung)	3-15g Tincture: 1-3ml 6-9g (Secondary source)

Actions And Indications

Actions	Indications/Syndromes
Astringes the Intestines, Clears Heat, Dries Dampness, Stops bleeding, Stops diarrhea	Diarrhea or dysentery due to Damp-Heat particularly if there is hemafecia Chronic vaginal discharge due to Damp-Heat
Kills parasites	Roundworms Pruritic tinea-like rashes (topically)

Contraindications, Incompatibilities And Herb/Drug Interactions

Major Combinations

Talcum Hua Shi	Rx. Ginseng Ren Shen	Fr. Psoraliae Bu Gu Zhi Fr. Evodiae Wu Zhu Yu Sm. Myristicae Rou Dou Kou
Dampness in the Lower Jiao causing dysenteric diarrhea, hemafecia and/or vaginal discharge.	Diarrhea or prolonged dysenteric disorders. With Rice Congee to treat bleeding hemorrhoids and chronic dysenteric disorder with bleeding and pus. Chronic diarrhea or chronic watery vaginal discharge that incessantly leaks. Mildly treats Damp-Heat.	Chronic dysenteric disorders that have led to diarrhea due to Deficiency Cold.
Plastrum Testudinis Gui Ban Rx. Paeoniae Alba Bai Shao Rx. Scutellariae Huang Qin Cx. Phellodendri Huang Bai Or Plastrum Testudinis Gui Ban Rx. Paeoniae Alba Bai Shao Rx. Scutellariae Huang Qin Rz. Cyperi Xiang Fu	Cx. Phellodendri Huang Bai Rx. Paeoniae Alba Bai Shao Rz. Alpiniae Officinari Gao Liang Jiang	Cx. Phellodendri Huang Bai Fr. Gardeniae Zhi Zi Sm. Plantaginis Che Qian Zi Or Cx. Phellodendri Huang Bai Fr. Gardeniae Zhi Zi Sm. Euryales Qian Shi Sm. Nelumbinis Lian Zi
Continuous uterine bleeding.	Damp-Heat causing red and white vaginal discharge.	Damp-Heat causing red and white vaginal discharge.
Alumen Ming Fan Per. Zanthoxyli Chuan Jiao (Rx. et Rz. Veratri) (Li Lu)	Rz. Coptidis Huang Lian Cx. Phellodendri Huang Bai Rx. Scutellariae Huang Qin	Per. Zanthoxyli Chuan Jiao
As an external wash for pruritic dermatosis.	Chronic dysentery or diarrhea with pus and Blood. Toxic Heat dysentery.	Postpartum rectal prolapse.
Fr. Quisqualis Shi Jun Zi Rz. Dryopteris Guan Zhong
Roundworms.

Notes

1. Externally, it serves as a wash for scabies and damp sores.
2. According to some sources, it expels Phlegm that has accumulated over a long period in the Lungs and Stomach.
3. Use it only once the pathogenic influence has been largely reduced or cleared.
4. On its own, it can be given as an enema for chronic dysentery or for diarrhea containing pus and Blood.
5. For roundworms it may be used alone.
6. Chun Pi and Cx. Phellodendri Huang Bai share the ability to clear Heat, dry Dampness and treat Damp-Heat vaginal discharge. Huang Bai is extremely bitter and cold, and its powerful cooling and drying action covers a broad range of syndromes, whereas Chun Pi restrains, binds and cools the Blood, making it suited to incessant uterine bleeding, hemafecia and chronic dysentery.
7. Chun Pi and Per. Granati Shi Liu Pi both bind the Intestines, stop diarrhea and kill parasites, and both are used Internally as well as topically. Chun Pi is Cold and addresses chronic Damp-Heat diarrhea, which may include mucus and Blood in the stools; applied topically as a wash or paste, it treats skin disorders. Shi Liu Pi is Warm and addresses chronic diarrhea with rectal prolapse from Spleen Qi or Yang Deficiency. It, too, is used topically as a soak or powder.
8. Dry-fried Ailanthus Bark Chao Chun Pi is less bitter and cold and protects digestion, particularly when dry-fried with bran.
9. Vinegar-prepared Ailanthus Bark Cu Chao Chun Pi has a stabilizing and binding action.
10. Rx. Ailanthi Chen Gen consists of the whole root, whereas Chun Pi is only the bark. Chen Gen is Bitter and Astringent and enters the Stomach channel. It dries Dampness from the Middle Jiao, binds the Intestines to stop diarrhea, clears Heat to lessen inflammation and swelling, and releases the Exterior to encourage the eruption of measles. Its indications are diarrhea, chronic dysentery, hematochezia, profuse menstrual discharge, and cancer of the cervix and rectum. It is contraindicated in Spleen and Stomach Deficiency Cold. The dosage is 3 to 5g.
11. Also known as Chun Gen Pi.