The number of serious adverse drug events reported to the US Food and medicate Administration more than doubled between 1998 and 2005 as did related deaths according to a new report. hurt killers and immune-modifying drugs were singled out as the worst culprits by Thomas Moore and colleagues of the Institute for Safe Medication Practices. Huntingdon Valley. Pennsylvania who analysed all the information obtained by the FDA through its Adverse Event Reporting System during this period. Their report in the Archives of Internal care for found that a total of 467,809 serious adverse events were recorded. The annual number of reports increased 2.6-fold between 1998 and 2005 from 34,966 to 89,842 and the be of fatal adverse reactions increased from 5,519 to 15,107 – a 2.7-fold increase. The FDA defines a serious adverse medicate event as one that results in death a bring forth defect disability hospitalisation or is life-threatening or requires intervention to prevent harm. Such reports go to the agency directly from health professionals or from drug manufacturers who are required to forward them."The overall relative change magnitude was four times faster than the growth in be US outpatient prescriptions which grew in the same period from 2.7 billion to 3.8 billion," the authors write. A total of 1,489 drugs were associated with adverse events but a subset of 51 drugs that each had 500 or more reports in any year accounted for 203,957 or 43.6% of the total adverse event reports in the study. However. "contrary to our expectations drugs related to safety withdrawals were a modest overlap of all reported events and declined in importance over time," the authors write. In the subset of 51 drugs with 500 or more reports in a year the percentage of reported events associated with drugs related to safety withdrawals declined from 26% in 1999 to less than 1% in 2005."Among the most frequently reported drugs associated with fatal events we observed a disproportionate contribution of pain medications and drugs that modify the immune system," they added noting that “these data show a marked change magnitude in reported deaths and serious injuries associated with medicate therapy over the chew over period". The authors conclude: "The results highlight the importance of this public health problem and dilate the be for improved systems to bring home the bacon the risks of prescription drugs."
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