Chinese medicine Daweiyao refers to the whole herb or root of the plant Dawei Yao, which belongs to the family Rubiaceae. It is harvested in autumn and can be used fresh or dried. It has the effect of clearing heat and detoxifying, and can be used clinically to treat pneumonia, boils, and other conditions. Now let's learn about the method of using Daweiyao to treat impetigo and abdominal pain!
Image of Daweiyao
[Treatment of Impetigo and Abdominal Pain with Daweiyao]
Take one to two taels of fresh Daweiyao, decoct and take the soup.
Chinese medicine believes that Daweiyao has the effect of clearing heat, detoxifying, and diuresis. It is commonly used for pneumonia, empyema, sore throat, oral ulcers, bladder stones, and abscesses.
1. "Fujian Folk Herbal Medicine": "Diuretic, heat-clearing, and detoxifying. Used to treat fever with spots, pneumonia, and empyema."
2. "Nanning Pharmaceutical Chronicle": "Dispels swelling, detoxifies, and eliminates accumulation. Internally used to treat bladder stones; branches and leaves are boiled with lime to fumigate and wash snakehead sores."
3. "Folk Herbal Medicine in Southern Fujian": "Used to treat sore throat, cough, early stage of abscess, and oral ulcers."
4. "Folk Herbal Medicine in Southern Fujian": "Used to treat dysmenorrhea, irregular menstruation, and whole body pain during menstruation."
5. "National Compilation of Chinese Herbal Medicine": "Clears heat and detoxifies. Mainly used for pneumonia, lung abscess, empyema, diarrhea, dysentery, orchitis, diphtheria, oral ulcers, and abscesses."
[Characteristics of Daweiyao]
Leaves are opposite or alternate, ovate to ovate-oblong, 3-8 cm long, slightly hairy, with short or gradually sharp apex and basal lobes extending to the petiole. Spike-like inflorescences are terminal or opposite to the leaves, 3-10 cm long, curved, with flowers all growing on one side of the inflorescence axis, and the lowermost ones opening first.
The calyx is green, 5-lobed; the corolla is light blue or nearly white, tubular, with a bare throat, 5 lobes, expanded, about 5 mm long and 3-3.5 mm in diameter; there are 5 hidden stamens.
The style is terminal, with a flattened conical disc at the top. The fruit is 4-5 mm long and consists of 2 ovoid small nuts.
Daweiyao grows in wild areas, hillsides, fields, roadside grasslands, or stream edges below 600m above sea level. It is distributed in Fujian, Taiwan, Guangdong, Hainan, Guangxi, Yunnan, and other places.
[Pharmacological Effects of Daweiyao]
The water extract of Daweiyao root can lower blood pressure and stimulate respiration when injected intravenously into anesthetized cats, and it has an inhibitory effect on the isolated frog heart; the alcohol extract has no effect.
The water extract has no significant effect on the isolated guinea pig ileum, but can increase the tension of the isolated rabbit duodenum; the alcohol extract has inhibitory effects in both cases.
It has no effect on the abdominal straight muscle of frogs, but has a significant stimulating effect on the isolated rat uterus. Both the water extract and the alcohol extract have oxytocin-like effects.
The leaf extract has anti-tumor effects (prolongs lifespan) on Schwartz leukemia (ascitic type) in mice.
