The nature and flavor of Daidaihua are sweet, slightly bitter, and warm. It has the effects of soothing the liver, harmonizing the stomach, and regulating qi. Treat chest tightness, epigastric distension and pain, vomiting, and eating less. Modern research has confirmed that the buds of Daidaihua contain volatile oils, mainly limonene, linalool, geranol, citronellol, valeric acid, etc., and also contain neohesperidin and naringin; the peel of mature fruits contains volatile oils ; Seeds contain fatty oils, etc.