a prescription analysis system and method are introduced . the prescription analysis system includes a knowledge database , an access module , a storage module , and a judgment module . the judgment module judges whether a new prescription is appropriate according to three prescription appropriateness criteria . the prescription analysis method is integrated in the prescription analysis system . therefore , the prescription analysis system and method enhance the accuracy of prescriptions , reduce likelihood of medication errors , cut medical expenditure , and save patients &# 39 ; lives .