There are many types of traditional Chinese medicine, such as botanical medicine, animal medicine, and mineral medicine. In fact, there are many detailed classifications of each type of medicine. For example, botanical medicine must be used as medicine. Different classifications of parts include roots, stems, leaves, seeds and flowers. Bianzhu is a kind of botanical medicine. So, what are the general functions of Bianzhu?

The Chinese name of Bianzhu bianxu

Alternately known as Bianxu, Bamboo, Daoshengcao, Polygonum, Pink knot grass, Baijie, wild iron broom.

The English name is Herba Polygoni Avicularis.

Source: The above-ground part of the Polygonumaviculare L. plant.

Plant form: annual herb, 15-50 cm tall. The stems are creeping or slanting upward, with many branches at the base, with obvious nodes and longitudinal wrinkles, and the young branches are slightly angular. The leaves are alternate, with short petiole, lanceolate to oval, blunt or pointed apex, wedge-shaped base, entire margin, green, glabrous on both sides, stipule sheath membranous, holding the stem, green lower part, transparent and colorless upper part, with obvious veins lines, on which many parallel veins often extend into filamentous lobes. There are 6 to 10 flowers in clusters in the leaf axils. The pedicels are short. The bracts and bracteoles are white and transparent. The perianth is green with white edges. After fruiting, the edges turn pink. There are usually 8 stamens. The ovary is rectangular. , 3 stigmas. The achenes are surrounded by the persistent perianth, with only a small part of the top exposed, and are ovate.

Origin distribution occurs in mountain roadsides, wasteland and riverside places. Distributed throughout the country.

Harvest and process the awn seeds during the period of slight summer heat, when the stems and leaves are growing vigorously. Cut off the above-ground parts and dry them in the sun.

The medicinal stems are cylindrical and slightly flat, with branches, 15 to 40 cm long and 0.2 to 0.3 cm in diameter. The surface is gray-green or brownish-red, with fine and slightly raised longitudinal lines. The nodes are slightly enlarged and have light brown membranous stipules. The internodes are about 3 cm long. They are hard and easy to break. The pith of the cross section is white. The leaves are alternate, nearly sessile or with short stalks. The leaves are often shed or shriveled or broken. The intact ones are flattened and lanceolate, with entire edges. Both sides are brown-green or gray-green. Odorless, slightly bitter taste.

Meridian distribution of nature and flavor is slightly cold and bitter. Returns to the bladder meridian.

Effects and effects: diuresis, treating stranguria, killing insects, and relieving itching. It is a diuretic and stranguria drug classified under the category of diuretic and dampness-removing drugs.

Clinical application dosage: 9 to 15 grams, taken orally as a decoction to treat hot bladder stranguria, short red urine, astringent and painful stranguria, skin eczema, and vaginal itching. Appropriate amount for external use, decoct and wash the affected area.

Pharmacological studies show that it has diuretic, antihypertensive, antibacterial effects and a mild astringent effect. It can accelerate blood coagulation and enhance uterine tension. It has an inhibitory effect on human platelet aggregation; it has a choleretic effect on rats and dogs. The decoction increases urine output, sodium and potassium excretion in rats, and its ash content also has the same effect; water and alcohol extracts can accelerate blood coagulation and increase uterine tension, and can be used as a treatment for uterine bleeding after abortion and delivery. Hemostatic agent; intravenous injection of water and alcohol extract has antihypertensive effect on cats, rabbits, and dogs; 1:10 leach solution has inhibitory effect on certain fungi, but weak inhibitory effect on bacteria; in addition, this product can enhance breathing It has a mild contraction effect on the range of motion and lung ventilation, and can be used as trauma medication. Toxicity: As a pasture, the plant is toxic and can cause dermatitis and gastrointestinal disorders in horses and sheep. Pigeons are the most sensitive to the toxic effects of this plant. The minimum lethal dose for cats and rabbits is 20 mg/kg for oral infusion (10-20) or decoction (1:40), and 2 mg/kg for intravenous water extract (1:50).

Chemical ingredients include leucoside, quercetin, chlorogenic acid, myricetin, vitexin, quercetin, luteolin, isovitexin, hyperoside, and luteolin , scopolamine, sinapinic acid, ferulic acid, syringic acid and other ingredients.

Usage contraindications: Patients with weak spleen and stomach and yin deficiency should use with caution.

Related prescriptions ① Treatment of urethritis and cystitis: 60 grams of fresh plantain and 30 grams of fresh plantain. Mash and mince the juice. Take 2 times. ("Fujian Drug Chronicles")

②Treat urinary tract stones: 15 grams each of Bianzhu and Huoxuedan (money grass), decoction in water; or 30 grams each of Bianzhu, Haijin Shateng and Plantain Gram, decoct in water and take.

("Zhejiang Medicinal Flora")

③Cure chyluria: 30-60 grams of fresh cypress, add 1-2 eggs, and an appropriate amount of ginger. Boil in water, eat eggs and drink soup. ("Zhejiang Medicinal Plants"

④Cure urinary obstruction: _Put one cup of water, half a cup of water, decoct one cup, and take it hot. ("Easy and Simple Prescriptions for Hygiene")

⑤ Treat jaundice: 30 to 60 grams of fresh clams and 250 grams of yellow clams. Decoction in water and drink as tea ("Fujian Medicine Chronicles") ⑥ Treat leucorrhea: 90 grams of fresh clams. 45 grams of mugwort root, 90 grams of japonica rice, and 30 grams of white sugar. First, boil the japonica rice into rice soup, then add the medicine, decoct the juice, and add the sugar. Take it on an empty stomach, 1 dose per day ("Southern Zhejiang Materia Medica").

⑦Treatment of diarrhea: a. 30 grams of Bianzhu and 30 grams of Agrimony. 9 grams, 15 grams of Agrobacterium spp., decoction in water ("Hunan Medicine Chronicle") ⑧Treatment of biliary ascariasis: 100 grams of Bianzhu, 100 grams of vinegar, add 1 bowl of water, and cook until 1 bowl. , divided into 2 times a day ("Changbai Mountain Botanical Medicine")

Efficacy

Bitter, slightly cold, and returns to the bladder meridian. It is dry and can kill insects, remove dampness and relieve itching. It is mainly used for stranguria and eczema.

1. It can be used to treat damp-heat stranguria syndrome, urinary tract infections, stones, hematuria, etc.

2. Killing insects and relieving itching can treat parasitic diseases such as pinworms. It can also be used as a decoction to treat skin sores and itching.

3. Treat red and white diarrhea and jaundice.

Dual-purpose food, yellow and green dyes can be extracted from the whole plant