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).