美联社:FDA对肾上腺素类药物进行紧急回收 FDA因生产质量问题，关闭了大量用于治疗甲状腺功能减退症的药片，从而导致该领域患者面临着重大健康挑战。回收药品的原因是该药品由于生产不均性而发生了降低活性的问题，这种情况也被称为“亚表效药”状态。 美联社 recently announce that the United States Food and Drug Administration (FDA) recalled a type of medication commonly used to treat thyroid problems. The recall affects Levothyroxine sodium tablets, which are widely used to regulate thyroid hormone levels and treat hypothyroidism. According to official statement, the FDA claim that the pharmaceutical company Major Pharmaceuticals and distribution company Cardinal Health have delivered tablets with less active ingredients than expected.