The herb Da Wei Yao, also known as the whole herb or root of the plant Da Wei Yao in the Verbenaceae family, is mainly found in Fujian, Taiwan, Guangdong, Hainan, Guangxi, Yunnan, and other regions in China. It is known for its heat-clearing, detoxifying, and diuretic effects, and can be used to treat conditions such as pneumonia and bladder stones. Let's take a closer look at the benefits and effects of Da Wei Yao.
Image of Da Wei Yao
【Benefits and Effects of Da Wei Yao】
Traditional Chinese medicine believes that Da Wei Yao has the effects of clearing heat, detoxifying, and promoting diuresis. It is commonly used for conditions such as pneumonia, empyema, sore throat, oral ulcers, bladder stones, and abscesses.
1. "Fujian Folk Herbal Medicine": "Diuretic, heat-clearing, dispersing abscesses, and detoxifying. Used for fever with rashes, pneumonia, and empyema."
2. "Nanning Pharmaceutical Records": "Reduces swelling, detoxifies, disperses accumulations, and is taken internally to treat bladder stones. Branches and leaves are combined with slaked lime to make a decoction for fumigation to treat snakebite sores."
3. "Folk Herbal Medicine in Southern Fujian": "Used to treat sore throat, cough, initial stage of abscesses, and oral ulcers."
4. "Folk Herbal Medicine in Southern Fujian": "Used to treat dysmenorrhea in women, irregular menstruation, and body aches during menstruation."
5. "National Compendium of Chinese Herbal Medicine": "Heat-clearing and detoxifying. Mainly used for pneumonia, lung abscesses, empyema, diarrhea, dysentery, orchitis, diphtheria, oral ulcers, and abscesses."
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【Clinical Applications of Da Wei Yao】
1. For treating pneumonia, lung abscesses, and empyema: Take 100g of fresh Da Wei Yao whole herb, decoct it with water and mix with honey for oral administration. Alternatively, grind 100-200g of fresh Da Wei Yao whole herb into a paste, squeeze out the juice, and mix with honey for oral administration.
2. For treating abdominal pain due to skin disorders: Take 50-100g of fresh Da Wei Yao whole herb, decoct it with water and take orally.
3. For treating testicular swelling and pain: Take 100g of fresh Da Wei Yao root, decoct it with water and take orally.
4. For treating infantile convulsions: Take 12g of dried Da Wei Yao root and 9g of dried Huang Dan Cao (Yellow Gentian) root. Add a little salt and stew with water for oral administration.
5. For treating oral ulcers: Mash the fresh leaves of Da Wei Yao into a paste, extract the juice, and use it for rinsing the mouth 4-6 times a day.
6. For treating abscesses: Take 100g of fresh Da Wei Yao root, add a little salt, decoct it with water and take orally. Additionally, take fresh leaves, mash them with cold rice, and apply as a poultice.
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【Pharmacological Effects of Da Wei Yao】
The water extract of Da Wei Yao root can lower blood pressure and stimulate respiration when injected intravenously in anesthetized cats. It also has an inhibitory effect on the isolated frog heart. However, the alcohol extract does not show any effect.
The water extract has no significant effect on the isolated guinea pig ileum, but can increase the tension of the isolated rabbit duodenum. On the other hand, the alcohol extract has inhibitory effects on both.
Both water and alcohol extracts have no effect on the frog rectus abdominis muscle, but both have significant excitatory effects on the isolated rat uterus. Both water and alcohol extracts have oxytocin-like effects.
The leaf extract has antitumor effects (prolonging lifespan) on Schwartz leukemia (ascites type) in mice.
