强心甙的一个重要特征是有蓄积性,即每日进入人体的强心甙不能在一天内全部消除,完全消除体内强心甙所需要时间超过24小时。故每天给予的强心甙必然有一部分在体内蓄积。此蓄积量与其药效有密切关系,也与毒性反应有密切关系。强心甙增强心脏收缩作用,在一定剂量范围内是随着体 An important feature of cardiac glycosides is the accumulation of cardiac glycosides into the body every day can not be completely eliminated within one day, completely eliminate the time required for cardiac glycosides more than 24 hours. Therefore, given a day of cardiac glycosides must have some accumulation in the body. This accumulation is closely related to its efficacy, but also with the toxic reactions are closely related. Cardiac glycosides enhance cardiac contractility, with the body within a certain dose range