药品是人类防病治病必不可少的特殊商品,目前,国内许多地方的制药厂都能生产出质量稳定、剂量正确、疗效高且价格低廉的药品,特别是口服药片的简便、安全、经济实惠更是深受广大患者的欢迎。但美中不足的是,许多口服药品的有效期标准不如进口药或中外合资企业生产的药品那样规范,不能 At present, pharmaceutical factories in many parts of China can produce drugs with stable quality, proper dosage, high efficacy and low price, especially the convenience, safety and economy of oral tablets Benefits is welcomed by the majority of patients. But the fly in the ointment is that the standard of validity of many oral medicines is not as standardized as that of imported medicines or medicines manufactured by Sino-foreign joint ventures,