From: Consumers of natural health products: natural-born pharmacovigilantes?
Term | Definition |
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Adverse Drug Reaction (ADR) | A noxious and unintended response to a drug, and which occurs at doses normally used in persons for the prophylaxis, diagnosis, or therapy of disease, or for the modification of physiological function. |
Suspected ADR | An adverse event that for which there is a suspicion of a causal relationship with a drug |
Adverse event/experience | Any untoward medical occurrence that may present during treatment with a pharmaceutical product but which does not necessarily have a causal relationship with this treatment. |
Serious ADR | Fatal, life threatening (such as liver failure, abnormal heart rhythms, certain types of allergic reactions), result in persistent or significant disability or incapacity, require or prolong hospitalization, are congenital anomalies or birth defects, or are otherwise medically important. |
Severe ADR | Severity describes the intensity of the adverse event or ADR. A severe ADR (e.g., a severe headache) is not necessarily a serious ADR |