Magnolia bark (Houpo)
Magnolia officinalis (Fam. Magnoliaceae)
Pharmaceutical Name: Cortex Magnoliae
officinalis
Botanical Name: 1. Magnolia
officinalis Rehd. et wils.; 2. Magnolia
officinalis Rhed. et Wills. var. biloba Rhed. et Wills. (Fam. Magnoliaceae)
Common Name: Magnolia bark.
Source of Earliest Record: Shennong
Bencao Jing.
Part Used & Method for Pharmaceutical
Preparations: Between April and June, the bark is peeled off and dried in
the shade. After a process of boiling, piling, steaming and drying, the herb is
ready for use.
Properties & Taste: Bitter, pungent
and warm.
Meridians: Spleen, stomach, lung and
large intestine.
Functions: 1. To promote qi
circulation; 2. To dry dampness; 3.To descend rebellious qi and relieve asthma;
4. To resolve retention of food.
Indications & Combinations:
1. For
disturbance of the Spleen and Stomach due to the Stagnation of Dampness, food,
or Qi, with epigastric distension, anorexia, nausea, and vomiting. Cortex
Magnoliae Officinalis is used alone or with
Rhizoma Atractylodis (Cang Zhu) and Pericarpium Citri Reticulatae (Chen Pi) in “The
Peptic Powder” (Ping Wei San); or with Radix et Rhizoma Rhei (Da Huang) and
Fructus Aurantii Immaturus (Zhi Shi) in “The Major Decoction for Purging Down
Digestive Qi” (Da Cheng Qi Tang) and in “The Minor Decoction for Purging Down
Digestive Qi” (Xiao Cheng Qi Tang); or with Radix Ginseng (Ren Shen), Radix
Glycyrrhizae Uralensis (Gan Cao), and Rhizoma Zingiberis Recens (Sheng Jiang)
for epigastric distension due to Cold of the Deficiency
type.
2. For
cough and asthma with profuse sputum, it is used with Semen Armeniacae Amarum
(Ku Xing Ren) in “The Cinnamon Twig Decoction” (Gui Zhi Tang).
Dosage: 3-10 g, decocted in water for
an oral dose.
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