Tongguxiao

Tongguxiao

(records of Guangxi Traditional Chinese Medicine)

White dog intestine

[source] it is the root of Acanthaceae.

[plant morphology] crow's beak

Rattan slightly woody, young stem densely covered with coarse short hairs, nodes distinct, slightly expanded. Leaves opposite, broadly ovate, 12-18 cm long, apex acuminate, base cordate, both sides rough and hairy, margin angular or lobed. Flowers large, axillary, petiolate, solitary or long drooping racemes; bracteoles ovate, ca. 3 cm long, enclosing flower buds, abscission; calyx a narrow ring; corolla 5-8 cm long, light blue or dark blue, or outside nearly white, corolla tube enlarged above ovary, 5-lobed, lobes expanded, ca. 7 cm in diameter; stamens 4, inserted near base of corolla tube; ovary superior, 2-locular, The style is long. It's hard to be strong. It blooms in summer and autumn. Most of them are planted in gardens.

Distributed in Guangdong, Guangxi, Yunnan, Fujian and other places.

[collection] all year round. Dry or fresh.

[medicinal material] the dry root is cylindrical, with grayish yellow surface, fine longitudinal wrinkles and root marks. The section is gray white and the central column is prominent. The fresh roots are fleshy.

[pharmacological action] the decoction of leaf and stem has little toxicity when injected intraperitoneally into mice (two mice were given 1g / mouse, and only one died within 24 hours). There was no significant effect on isolated ileum of guinea pig, uterus of rat, rectus abdominis of toad and hind limb perfusion of rat.

[nature and taste] Guangxi Traditional Chinese medicine annals: "slightly pungent in taste, flat in nature. "

[functions and indications] records of Guangxi Traditional Chinese medicine: "dispel wind, refute bone. Treatment of rheumatism, falls, bone. "

[usage and dosage] oral: decoction, 3-8 yuan.

Chinese PinYin : Tong Gu Xiao