药物预防。
In its draft, "Prescription Drug User Fee Act (PDUFA) iv Drug Safety Five-Year Plan," the agency says it will focus on hiring the staff through fiscal year 2009.
该计划草案为“处方药消费者付费法案(PDUFA) IV药品安全五年计划”,据相关机构介绍,该方案将会从2009年的年度财政中获取经费用于雇佣相关人员。
Sometimes a phase iv (post-approval) trial is also pursued, where the long-term effects of the drug are monitored on those receiving prescriptions.
有时还有第四阶段,这期间药物的长期效果在接受药物的病人中被监测。
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