Macrostem Onion (Xiebai)
| Pharmaceutical Name: | Bulbus Allii macrostemi |
| Botanical Name: | Allium macrostemon Bge. |
| Common Name: | Macrostem Onion, Bakeri, Bulb of Chinese Chive |
| Source of Earliest Record: | Shennong Bencao Jing |
| art Used & Method for Pharmaceutical Preparations: | The Macrostem, or bulb, of the onion is dug in May, cleaned and dried in the sun. |
| Properties and Taste: | Pungent, bitter and warm |
| Meridian: | Lung, stomach, and large intestine |
| Functions: | To promote the flow of yang and dissipate cold phlegm; 2. To regulate qi and reduce stagnation |
| Indications and Combinations: | 1. Cold phlegm stagnated in the chest manifested as stifling sensation and pain in the chest and dyspnea. *Use with Trichosanthes fruit (Gualou) in the formula Gualou Xiebai Baijiu Tang. 2. Dysentery manifested as tenesmus. *Use with Immature bitter orange (Zhishi), Costus root (Muxiang) and White peony root (Baishao). |
| Dosage: | 5-10 g |