Japanese Pagodatre Flower-bud

This herb mainly contains flavonoids, the principal components of which are rutin, quercetin, etc. It also contains various saponins such as sophoraflavonoloside I, as well as betulin, phytohemagglutinin, etc.

This herb shortens coagulation time, an effect enhanced after charring; the contained rutin and quercetin reduce capillary permeability and strengthen capillary resistance; it also dilates coronary arteries, enhances myocardial contractility, slows heart rate, lowers blood pressure, and prevents arteriosclerosis. The aqueous infusion inhibits skin fungi such as Trichophyton violaceum and Trichophyton schoenleinii to varying degrees.

No precautions information available