本文通过研究三次相继输注时血药浓度的情况,提出了一种新的给药方案,即以速率Q_1输注T_1h,然后以速率Q_2输注T_2-T_1h,最后以维持速率Q_3输注到结束。文中采用优化手段得到三个输注速率的关系,从而使血药浓度尽快地达到稳态,并能控制血药浓度的最大值及其在指定时间内到达所期望的浓度。 In this paper, a new drug regimen is proposed by studying the plasma concentration of three consecutive infusions, that is, infusion of T_1h at rate Q_1, infusion of T_2-T_1h at rate Q_2 and infusion of Q_3 at the maintenance rate End. In this paper, the optimization method is used to get the relationship between the three infusion rates, so that the plasma concentration reaches the steady state as soon as possible and the maximum value of the plasma concentration can be controlled and the desired concentration can be reached within a specified time.