Houttuynia cordata Thunb

Houttuynia cordata Thunb

(Lu Yan Ben Cao)

[synonyms] cencao (Wuyue Chunqiu), Jiji (bielu), Saicai (tangbencao), Jicai (mengshen), Zibei Houttuynia (lvyanbencao), Ziji (emergency Yifang), saizi (compendium), yuzhuchao (yilinzhuanyao), xiergen (Zunyi Fu Zhi), zhunostril (Tianbao Bencao), jiujielian (Lingnan caiyaolu), Chongyao (Modern Practical Medicine) Traditional Chinese Medicine), goutieer (flora of Guangzhou), feixingcao (collection of Guizhou folk prescriptions), Zhenzhucao (Herba euphorbiae), zhumuer (Fujian folk herbal medicine), qiudawei (manual of Zhejiang traditional Chinese Medicine), gouzier, Choudao, yehuamai (Jiangxi folk herbal medicine), Yucai (flora of traditional Chinese Medicine), recao (collated edition of Yunnan materia medica), Choudao (Zhejiang folk herbal medicine), Choudao (traditional Chinese Medicine) It is also known as "minchao herb", "hongchou herb", "hongchou herb" and "hongchou herb".

[source] Houttuynia cordata (Thunb.) Benth, a family of three white grasses.

[plant morphology] Houttuynia cordata Thunb

Perennial herbs, 15-50 cm high. The lower part of stem is prostrate, rooting on nodes, glabrous or glabrous. Leaves alternate, heart-shaped or broadly ovate, 3-8 cm long and 4-6 cm wide, apex acuminate, base cordate, entire, glandular punctate, purplish below, pilose on veins on both sides; petiole 1-4 cm long, sparsely hairy; stipules membranous, strip-shaped, about 2.5 cm long, base clasping, lower part connate with petiole, margin hairy. Spikes on the upper end of the stem, opposite to the leaves, about 2 cm long; involucral bracts 4, oblong obovate, different sizes, white; flowers small and dense, without perianth, with 1 small lanceolate bracts; stamen 3, lower part of filaments connate with ovary; pistil 1, composed of 3 lower connate carpels, ovary superior, style 3, separated. Capsule ovoid, apex dehiscent. Seeds numerous, ovate. The flowering period is from May to June. The fruit period is from October to November.

It grows in shady wetland or near water. It is distributed in northwest, North China, central China and south of the Yangtze River.

[collection] harvest in summer and autumn, pull up the whole grass, wash and dry.

[medicinal material] the dried whole grass is extremely shriveled. Stem oblate cylindrical or quasi cylindrical, twisted and slender, about 10-30 cm long, about 2-4 mm thick. The surface is light reddish brown to yellowish brown, with longitudinal wrinkles or furrows. The nodes are obvious, and there are fibrous roots on the nodes near the lower part. The upper surface is dark yellowish green to dark brown, and the lower surface is bluish gray or grayish brown. Flower ears are rare. The quality is slightly brittle, fragile, and the broken section of stem is not flat and thick fibrous. It is slightly fishy, fresh and astringent. Light reddish brown, complete stems and leaves, no soil and other impurities are preferred.

It is mainly produced in Zhejiang, Jiangsu and Hubei. In addition, it is also produced in Anhui, Fujian, Sichuan, Guangdong, Guangxi, Hunan, Guizhou and Shaanxi.

[chemical composition] the volatile oil in the whole herb was 0.0049%, and the antibacterial components were houttuynin, methyl-n-nonylketone, myrcene, lauraldehyde, decanal and decanoic acid. It also contains potassium chloride, potassium sulfate and houttuynine.

Isoquercitrin was found in flower and fruit ear and quercitrin in leaf. It has also been reported that the flavonoids in flowers, leaves and fruits are the same, including quercetin, quercetin, isoquercetin, renoside and Hyperoside.

The volatile oil of rhizome also contains houttuynin.

[pharmacological action] 1

Houttuynia cordata Thunb has obvious inhibitory effect on Bacillus catarrhalis, influenza bacillus, pneumococcus and Staphylococcus aureus in vitro, but it has poor inhibitory effect on Shigella dysentery, Escherichia coli and Salmonella typhi. It has also been reported that the mixture of Houttuynia cordata Thunb and Platycodon grandiflorum has no antibacterial effect on pneumococcus (test tube method, plate method). Houttuynia cordata Thunb can delay the development of experimental tuberculosis and prolong the life of mice. A kind of oily substance was put forward from Houttuynia cordata Thunb. It can inhibit the growth of many microorganisms, especially yeast and mold.

② Antiviral effect

The results showed that Houttuynia cordata Thunb (1:10) could inhibit the growth of influenza A virus strain Jingke 68-1.

③ Diuretic effect

Houttuynia cordata can dilate capillaries, increase blood flow and urine secretion by perfusing toad kidney or frog web, thus it has diuretic effect. The diuretic effect of quercetin may be caused by organic matter, potassium only has the additional effect of enhancing diuresis, and it may also be due to the vasodilator effect of quercetin.

④ Other functions

Houttuynia cordata Thunb can also relieve pain, stop bleeding, inhibit serous secretion and promote tissue regeneration. The decoction has antitussive effect on mice by intraperitoneal injection (ammonia water method), but has no expectorant and antiasthmatic effect.

[processing] remove impurities, remove residual roots, wash and cut into sections, and dry in the sun.

It is pungent and cold.

① Bielu: "the taste is pungent and mild. "

② "Lvyan Materia Medica": it is cool in nature and non-toxic. "

③ "South Yunnan Materia Medica" says: "cold in nature, bitter and pungent in taste. "

④ "Compendium": "pungent, slightly warm, with little poison. "

⑤ Yilin zuanyao: "Gan Xin Xian. "

[Guijing] 1. Bencao Jingshu: "start with Taiyin Jing. "

② Ben Cao Zai Xin: "entering the liver and lung meridians. "

Functions and indications: clearing away heat and toxin, diuresis and detumescence. Treatment of pneumonia, lung abscess, dysentery, malaria, edema, gonorrhea, leucorrhea, carbuncle, hemorrhoids, anal prolapse, eczema, alopecia, scabies.

① Bielu: "the Lord drowns in sores. "

② "Rihuazi Materia Medica": "simmer in a bamboo tube, and then apply it to cure the sores. "

③ "Lvyan materia medica:" Dazhi is suffering from heatstroke. It's hot and stuffy, unconscious. "

④ "Diannan Materia Medica": "it is used to treat lung carbuncle, cough with pus blood, phlegm with fishy smell, large intestine heat poison, and hemorrhoids. "

⑤ "Gangmu": "heat toxin, carbuncle, hemorrhoids, anal prolapse, broken disease, detoxification. "

⑥ Yilin zuanyao: "running water, tackling difficulties, removing miasma and relieving summer heat. It can cure snake venom, beriberi, ulceration and carbuncle, and remove blood stasis. "

⑦ Chen Nianzu: "the treatment of hematemesis by birth and tamping. "

⑧ Classification of herbal medicine: "treat five kinds of gonorrhea, eliminate edema, eliminate food accumulation, replenish weakness and eliminate swelling. "

⑨ "Lingnan medicine collection record" says: "Ye: it can be disinfected by applying poisonous big sores; it can be decocted to remove dampness and heat and treat dysentery. "

⑩ "Modern practical Chinese medicine": "leaves: Hot external paste, for foaming medicine, can treat sore ringworm. Where scabies swelling, eczema, lumbago can be used as bath soup. Chew the root raw to prevent angina attack of coronary heart disease. "

(11) Chinese medicine and plant Atlas: "it can be used as emetic for emergency treatment. "

(12) Guangzhou Air Force's Manual of commonly used Chinese herbal medicine: "anti inflammatory and detoxification, diuresis and detumescence. Treatment of upper respiratory tract infection, lung abscess, urinary tract inflammation and other parts of suppurative inflammation, snakebite. "

⒀ "manual of common Chinese herbal medicine" of Guangzhou Army: "clearing heat and detoxifying. Treatment of mastitis, cellulitis, otitis media, enteritis. "

[usage and dosage] oral administration: decoction, 3-5 yuan (fresh 1-2 Liang); or mashed juice. External use: fumigation or tamping with boiling water.

[should avoid] deficiency cold syndrome and negative external ulcer should not be taken.

① Bielu: "eating too much is breathtaking. "

② Meng Shen: "if you eat for a long time, you will feel weak, damage Yang Qi and eliminate essence. "

[selected formula] ① for the treatment of lung carbuncle with vomiting of pus and blood: Houttuynia cordata, trichosanthin, Platycladus orientalis, etc. Take it in decoction. (materia medica of Southern Yunnan)

② Treatment of lung carbuncle: Ji, pound juice, into the old mustard brine drink. (Ben Cao Jing Shu)

③ Treatment of viral pneumonia, bronchitis, cold: Houttuynia cordata, Magnolia officinalis, forsythia each three money. Grind end, mulberry branch one or two, decoct water to take medicine end. (Jiangxi herbal medicine)

④ Cure lung disease cough night sweat: side ear root leaf two liang, pig belly one. Put the roots and leaves of the lateral ear into the stomach to stew. One dose a day for three times. (Guizhou folk medicine Collection)

⑤ Dysentery: Houttuynia six money, shanchatan two money. Fried in water with honey. (records of Lingnan herbal medicine)

⑥ Treatment of heat, turbidity, leucorrhea: Houttuynia eight money to one or two. Take it in water. (Jiangxi folk herbal medicine)

⑦ Treatment of hemorrhoids: Houttuynia cordata, fried soup, water and wine, even into three. The dregs of fumigation, pus ulceration, no pus from the elimination. (materia medica of Southern Yunnan)

⑧ Treatment of chronic sinusitis: mash fresh Houttuynia cordata, wring natural juice, nasal drops several times a day. Another use Houttuynia seven money, water fried service. (Shaanxi herbal medicine)

⑨ Treatment of carbuncle poison: Houttuynia dried, ground into fine powder, honey transfer application. Those who have not become purulent can be eliminated internally, and those who have become purulent can be discharged. (Jiangxi folk herbal medicine)

⑩ Treatment of sores pain: Houttuynia smashed application, pain one or two, not to grass, pain after one or two days. (Jide hall experience prescription)

(11) treatment of pruritus vulvae and anal carbuncle: appropriate amount of Houttuynia cordata, Decoction and fumigation. (commonly used Chinese herbal medicine in Shanghai)

(12) treatment of snakebite: Houttuynia cordata Thunb, rhynchophylla rugosa, Sophora japonica Leaves, Cassia obtusifolia. A pestle rotten apply it. (emergency prescription)

[clinical application] 1

Take 30 grams of Houttuynia cordata and 15 grams of Platycodon grandiflorum and fry them to 200 ml. 30 ml each time, 3~4 times a day, sputum thick amount of time, and 5% houttuynia herb spray inhalation. 28 cases of pneumonia (11 cases of lobar pneumonia, 8 cases of segmental pneumonia, 8 cases of patchy shadow, 1 case of mild bronchopneumonia) were treated. Bacteriological examination confirmed that they were bacterial infection, and the factors of allergy, virus and tuberculosis were excluded. All cases were treated within 24 hours to 3 days after the onset of the disease, until the shadow on the X-ray picture was completely absorbed. Results 26 cases were cured. The shadow was absorbed in 5-22 days (mean 9.4 days) after treatment, and the white blood cells returned to normal in 3.9 days. In addition, 1:1 Houttuynia injection, intramuscular injection, 2 ml each time, twice a day, 7-10 days as a course of treatment, the treatment of pneumonia for 1 year

Chinese PinYin : Yu Xing Cao