Plantain Herb

The whole plant contains phenylpropanoid glycosides: plantainoside A, plantainoside B, plantainoside C, desrhamnosylisoacteoside, acteoside, leucosceptoside A, isoacteoside, isomartynoside and martynoside, etc.; sterols: β-sitosterol, stigmasterol, β-sitosterol palmitate and stigmasterol palmitate; it also contains ursolic acid, n-hentriacontane and aucubin. The aerial parts contain plantaginin. Phenylpropanoid glycosides: desrhamnosylisoacteoside, acteoside, plantamajoside, 7-hydroxyplantamajoside, calceolarioside and hellicoside. The leaves contain aucubin, plantaginin, homoplantaginin and 6-hydroxyluteolin.

1. Effects on the urinary system: Intravenous administration of an aqueous extract followed by alcohol precipitation of Cheqiancao in dogs increases ureteral peristaltic frequency and raises intraluminal pressure in the upper ureter. 2. Antitussive, antiasthmatic, and expectorant effects: Oral administration of Cheqiancao decoction can suppress cough induced by electrical stimulation in cats.

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