Citrus aurantium L Fam Rutaceae


Citrus aurantium L. (Fam. Rutaceae) I. Branch with fruit; 2. Immature fruit; 3. Flower english name immature bitter orange fruit part used dried young fruit

Fructus Aurantii Immaturus is produced chiefly in the provinces of Sichuan, Jiangxi, Fujian, Zhejiang, Jiangsu, and Hunan. Collected in July and August and dried in sunlight, it is used unprepared or stir-baked with wheat bran.

flavor, property, and channel tropism Bitter and pungent in flavor, slightly cold in property, acts on the Spleen, Stomach and Large Intestine channels.


Relieves Stagnation of Qi, mobilizes stagnant food in the digestive tract, resolves Phlegm.

clinical use and major combinations

For abdominal distension and pain, constipation, belching with a fetid odor due to stagnation of undigested food, it is used with Fructus Crataegi (Shan Zha) and Fructus Hordei Germinatus (Mai Ya). For constipation and abdominal distension due to accumulation of Heat, it is used with Cortex Magnoliae Officinalis (Hou Po) and Radix et Rhizoma Rhei (Da Huang). For abdominal distension after meals caused by Spleen Deficiency, it is used with Rhizoma Atractylodis Macrocephalae (Bai Zhu). For diarrhea with tenesmus due to the accumulation of Damp Heat, it is used with Radix et Rhizoma Rhei (Da Huang), Rhizoma Coptidis (Huang Lian), and Radix Scutellariae (Huang Qin) in "The Pills of Aurantii Immaturus for Removing Stagnancy" (Zhi Shi Dao Zhi Wan).

For feelings of stiffness and fullness in the chest and upper abdomen due to obstruction of the normal flow of Qi by Phlegm. For chest pain and shortness of breath, it is used with Bulbus Allii Macrostemi (Xie Bai), Ramulus Cinnamomi (Gui Zhi), and Fructus Trichosanthis (Gua Lou). For a feeling of fullness in the chest with abdominal dis tension, it is used with Fructus Gardeniae Jasmi-noidis (Zhi Zi) and Semen Sojae Preparatum (Dan Dou Chi).

For gastroptosis, gastric dilatation, prolapse of the rectum and hysteroptosis. It should be used with herbs that replenish the vital Qi, such as Radix Astragali Membranaceus (Huang Qi) and Radix Codonopsis (Dang Shen).

It can elevate the blood pressure.

dosage and administration


1. Used with caution in patients with hypofunction of the Spleen and Stomach.

2. Contraindicated during pregnancy.

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Constipation Prescription

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