Serious Adverse Reaction [SAR]« Back to Glossary Index
An adverse drug reaction (ADR) is called serious if at any dose it:
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- results in death,
- is life-threatening (at risk of death at the time of the adverse event, not an event which ‘could’ hypothetically have caused death if it were more severe),
- requires hospitalisation or extension of existing inpatients’ hospitalisation,
- results in a persistent or significant disability or incapacity, or
- is a congenital anomaly or birth defect.