由于抗生素的销售利润很高 ,新的抗生素层出不穷 ,广告也做得铺天盖地 ,甚至出现于非专业出版物及电视广告中。在美国九十年代初头孢类抗生素约占所有药物销售额的 80 %。一种新药、生产工艺、技术或某种设备应该经受 5年以上时间的考验 ,“经得起时间考验的”抗生素有如下优点 Due to the high sales profits of antibiotics, new antibiotics are emerging in an endless stream and advertisements are overwhelming even in non-professional publications and TV commercials. Cephalosporins account for about 80% of all drug sales in the United States in the early 1990s. A new drug, manufacturing process, technology, or equipment of some kind should withstand the test of more than five years, “antibiotics that stand the test of time” have the following advantages