Liu Chuanyu

Liu Chuanyu

(Inner Mongolia Chinese herbal medicine)

[source] it is the whole plant of Scrophulariaceae.

[plant morphology] salamander

Perennial herbs, 20-70 cm high. Taproot slender, yellow white, stem erect, single or branched. Leaves alternate, sessile or subsessile; leaf blade linear lanceolate or linear, apex pointed, entire, glabrous. Raceme terminal, flowers dense; bracts lanceolate; calyx 3 mm long, 5-lobed, lanceolate: corolla 2-lipped, tube long, base with a distance, 20-30 mm long, throat closed, pale yellow, orange yellow spots in the lower lip bulge; stamens 4, 2 longer; pistil ovary superior, 2-locular. Capsule subglobose, 9-10 mm long. The flowering period is from June to September. The fruit period is from August to October.

In fixed or semi fixed sand dunes, sandy land, grassland, dry hillside, gully roadside and other places. Distributed in Northeast, Inner Mongolia and other places.

[collection] in summer, the flowers are harvested in full bloom and dried in the shade.

[chemical constituents] the aerial part contains alkaloid platycodin. The flowers contain flavonoid linarin, salidroside and neolinarin.

[pharmacological action] 10% extract injected subcutaneously or intraperitoneally (2.5-6 g / kg) can inhibit the activity of mice and prolong the sleep time caused by pentobarbital; for anesthetized rabbits, cats and dogs, it can significantly reduce blood pressure, stimulate breathing, slow heart beat, prolong PQ gap and change the pattern of thyroid wave on ECG; for isolated frog heart, 1:600-1:2000 can enhance the contraction amplitude and slow down the frequency It has the effect of constricting blood vessels for isolated rabbit ears and decreasing tension for isolated rabbit and cat small intestine. Its cholagogic effect has been reported.

[flavor] sweet, slightly bitter, cold.

Functions and indications: clearing away heat and toxin, dispersing blood stasis and detumescence. Treatment of headache, dizziness, jaundice, hemorrhoids, constipation, skin diseases, soup fire injury.

[usage and dosage] oral administration: decoction, 1-3 yuan; or powder. External use: grind and apply.

[prescription selection] ① for influenza: one or two for liuchuanyu and Caowu, five for Ophiopogon japonicus and Oxytropis multiflorus, three for Valeriana officinalis and black rutin, and three for bezoar. Research fine noodles, three times a day, five cents to one money each time, take with boiling water.

② Treat soup fire injury: Liu Chuanyu three money, Sanguisorba charcoal five money, rhubarb four money, borneol one money. Total research very fine powder, oil transfer external application. (the following is the Inner Mongolia Chinese herbal medicine)