A method for delivering intravenous drugs to a patient comprising programming a drug delivery system, including a controller and an infusion pump, with a maintenance rate or a loading dose for a drug and causing the drug delivery system to (a) calculate a loading dose based on the maintenance rate or a maintenance rate based on the loading dose, (b) administer the loading dose of the drug to the patient to rapidly achieve a desired level of effect, and (c) administer the drug at a first maintenance rate to maintain the level of effect.本發明揭露出一種遞送靜脈內藥物給病人的方法，包含以藥物的維持速率或者載入劑量來程式化包括控制器與注入唧筒的藥物遞送系統，並且使得藥物遞送系統(a)基於維持速率來計算載入劑量，或者基於載入劑量來計算維持速率，(b)將藥物的載入劑量施打給病人，以快速達到希望程度的效果，以及(c)以一第一維持速率來施打藥物，以維持該程度的效果。
