块茎含夏无碱(decumbenine),紫堇米定碱(corlumidine),比枯枯灵碱(bicuculline),掌叶防己碱(palmatine),α-四氢掌叶防己碱(tetrahydropalmatine),α-别隐品碱(α-allocryptopine),小檗碱(berberine),药根碱(jatror-rhizine), 空褐鳞碱
(bulbocapnine),原阿片碱(protopine),山缘草定碱(adlumi-
dine),夏无新碱(decumbensine),表-α-夏无新碱(epi-α-decum-bensine),羟白毛莫碱(hydroxyhydrastine),紫堇碱(corydaline)及夏无碱丙素(decumbenine C)等生物碱。