Pericarpium Citri Reticulatae


The pericarp of Citrus reticulata Blanco, family Rutaceae.

Pericarp usually separated into several pieces, or pieces jointed at the base, varying in size, about 1 mm in thickness. Exocarp orange-red, with numerous rounded oil spots; mesocarp white, loose, with numerous reticular vascular bundles. Aromatic in odour. Bitter and acrid in taste, warm in nature, and attributive to spleen and lung channels.

1. Activate vital energy circulation and invigorate spleen: For stomach-cold and stagnation of vital energy with fullness and pain in the abdomen and vomiting, used together with Radix Auckiandwe; for spleen-deficiency and stagnation of vital energy with poor appetite, loose stool, fullness of the abdomen, used together with Rhizoma A tractylodis Macrocephalae, Radix Codonopsis Pjiosuiae; for dampnessretention syndrome involving spleen-yang with fullness of the abdomen, nausea, vomiting, fatigue, poor appetite and loose stool, used together with Cortex Magnoliae Officinalis and Rhizoma A tractylodis.
2. Deprive dampness and eliminate phlegm: For phlegm-dampness syndrome with productive cough and thin expectoration, used together with Rhizoma Pinelliae and Poria.
3. Lower the adverse rising energy and stop vomiting: For vomiting due to stomach-cold, used together with Rhizoma Zingiberis Recens (Decoction of Exocarpium Citri Grandis); for that due to deficiency-cold of spleen and stomach, used together with Radix Codonopsis Pilosuine, Rhizoma Atractylodis Macrocephalae and Fructus Amomi; for that due to stomach-heat, used together with Caulis Bambusae in Taeniam or Rhizoma Coptidis.
4. Relieve local infection: For carbuncle, especially for acute mastitis, used together with Radix Glycyrrhizae.

Pharmacological Action
1. Its volatile oil acts as a slight irritant to the gastrointestinal tract, which can promote the secretion of digestive fluid and expel the flatus.
2. The component limonene is an expectorant and antiasthmatic.
3. Methyl hesperidin, another component, given hypodermically in a dose of 100 mg/kg may promote the discharge of bile in anesthetized rats.
4. Dilating the coronary artery and decreasing the level of serum cholesteroL

Administration Decoction: 3-9g; 30-40g for relieving local infection.


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