| In Vitro | In vitro activity: Lappaconite Hydrobromide is a kind of alkaloid extracted from Aconitum sinomontanum Nakai and has anti-inflammatory effects. Its absorption percentage in rat stomachs after administration was 9.67%.The absorption percentages at duodenum,jejunum,ileum and colon were 19.61%,11.83%,12.95% and 9.51%, respectively.When the concentration was raised from 10 mg/L to 40 mg/L, the uptake of lappaconite hydrobromide was linearly increased,whereas the absorption rate constant kept at the same level. |
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| In Vivo | Lappaconite Hydrobromide absorption percentage in rat stomachs after administration was 9.67%. The absorption percentages at colon, jejunum, ileum and duodenum were, 9.51%, 11.83%, 12.95%, and 19.61%, respectively. The uptake of lappaconite hydrobromide was linearly increased when the concentration was raised from 10 mg/L to 40 mg/L, whereas the absorption rate constant kept at the same level. The LD50 values are of 10.5 mg/kg (i.p. administration) and 9.9 mg/kg (i.p. administration) in mice and rat, respectively. In addition, in anesthetized rabbits injected with lappaconite up to 1 mg/kg, cardiac arrhythmia was quickly observed. |
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