抗生素是指某些微生物 (真菌、放线菌或细菌 )在代谢过程中产生的 ,对其他微生物具有抑制或杀灭作用的化学物质。β-内酰胺抗生素其中包括青霉素类和头孢菌素类。因为药物对敏感菌作用强大 ,所以在临床上应用较广泛。但稍不注意 ,达不到一定预期的效果反而造成一些比较严重的不 Antibiotics are chemicals that some microbes (fungi, actinomycetes, or bacteria) produce during metabolism and have inhibitory or destructive effects on other microbes. Beta-lactam antibiotics include penicillins and cephalosporins. Because of the powerful role of drugs on sensitive bacteria, so it is widely used in clinical practice. However, a little attention, the effect of less than a certain expectation but caused some more serious not