Ophiopogon Root (Maidong)
|Pharmaceutical Name:||Radix Ophiopogonis|
|Botanical Name:||Ophiopogon japonicus (Thunb.) Ker-Gawl.
|Common Name:||Ophiopogon root
|Source of Earliest Record:||Shennong Bencao Jing|
|art Used & Method for Pharmaceutical Preparations:||The tuberous roots are dug in summer. After the fibrous roots have been removed, the roots are dried in the sun.|
|Properties and Taste:||Sweet, slightly bitter and slightly cold.|
|Meridian:||Lung, heart and stomach|
|Functions:||To nourish the yin and moisten the lungs
To strengthen the stomach and promote the production of body fluids
To clear heat in the heart and relieve irritability
|Indications and Combinations:||1. Dryness and heat in the lungs due to deficiency of yin manifested as cough with scanty and sticky sputum or cough with bloody sputum.
*Use with Glehnia root (Shashen), Asparagus root (Tianmendong), Tendrilled fritillary bulb (Chuanbeimu) and Fresh rehmannia root (Shengdihuang).
2. Deficient yin of the stomach manifested as dry tongue and thirst.
*Use with Fragrant solomonseal rhizome (Yuzhu), Glehnia root (Shashen) and Fresh rehmannia root (Shengdihuang).
3. Irritability and insomnia:
a) Nutritive (yin) system invaded by pathogenic heat.
*Use with Fresh rehmannia root (Shengdihuang), Bamboo leaf (Zhuye) and Coptis root (Huanglian) in the formula Qingying Tang.
b) Heart yin deficiency with internal heat causing insomnia.
*Use with Fresh rehmannia root (Shengdihuang) and Wild jujube seed (Suanzaoren) in the formula Tianwang Buxin Dan.
4. Constipation caused by dryness in the intestines.
*Use with Fresh rehmannia root (Shengdihuang) and Scrophularia (Xuanshen) in the formula Zengye Tang.
|Cautions:||This herb is contraindicated in cases with cough due to wind-cold type of common cold, with presence of phlegm fluid and turbid dampness, with diarrhea due to deficiency, and cold in the spleen and stomach.|