(Mian Ma) Guan Zhong貫眾

Rhizoma DryopterisDryopteris Root

Also known asShield-Fern · Wood-Fern

Usual doses

Kills parasites: Intestinal parasites including tapeworms, roundworms, pinworms (mild effect), liver fluke, threadworms and hookworms
Clears Heat and relieves Fire toxicity: Warm-Heat toxic diseases with Fire Blazing (regardless of the level), measles, encephalitis, pneumonia
Cools the Blood and stops bleeding: Blood Heat bleeding, all types of bleeding, especially uterine bleeding

Tapeworm infestation.
- Shi Jun Zi
- Ku Lian Pi
Roundworm infestation.
- Wu Yi
- Gan Qi
Pinworm infestation.
Abscess and mumps from Heat toxin.
- He Shi
- Ku Lian Gen Pi
Pinworm infection.
- Ce Bai Ye
- Xian He Cao
- Han Lian Cao
Heavy uterine bleeding from Heat in the Blood.
- Huang Lian
- Gan Cao
Diseases caused by Heat toxin.
- Chi Shao
- Sheng Ma
- Zhi Ke
Macules that are slow or difficult to surface/express.
- Da Qing Ye
- Ban Lan Gen
- Zi Cao
Warm pathogen diseases such as influenza, encephalitis B, and mumps.
- Jin Yin Hua
Preventive use against measles.
General parasitic infestation.
- Sang Ye
Preventive use against the common cold and influenza.
- Jin Yin Hua
- Ban Lan Gen
- Da Qing Ye
- Lian Qiao
Viral infection; parotitis; infectious bronchitis.
- Huang Lian
Used as a powder for hematemesis (vomiting blood).
- Xue Yu Tan
- Ce Bai Ye
Severe, persistent hematemesis.

Habitual use diminishes taste sensation, increases appetite, causes periodontal disease and, in some cases, chronic diarrhea, along with discoloration of the mouth and lips — it has a narcotic effect and is chewed together with an alkaline substance.
It is useful for gastrointestinal disorders involving bloating and edema.
It is particularly effective against tapeworms.
It may be used for Wind-Heat common cold and nosebleed.
It disperses both fixed and mobile masses, dispels head wind, and treats metal (weapon) wounds.
It treats Intestinal Damp-Heat marked by burning, difficult defecation, blood in the stool, abdominal pain, and thirst.
It helps the female organs contract after pregnancy.
The charred form, Guan Zhong Tan, stops bleeding.
For postpartum bleeding, 6g of vinegar-treated Guan Zhong is taken with rice wine.