Question: What is adverse reaction of a drug?

We define an adverse drug reaction as an appreciably harmful or unpleasant reaction, resulting from an intervention related to the use of a medicinal product, which predicts hazard from future administration and warrants prevention or specific treatment, or alteration of the dosage regimen, or withdrawal of the ...

What is the definition of adverse drug reaction?

Adverse reaction. WHO, (1972) • A response to a drug which is noxious and unintended, and which occurs at doses normally used in man for the prophylaxis, diagnosis, or therapy of disease, or for the modifications of physiological function.

What is the difference between an adverse drug reaction and a side effect?

To many people, adverse events and side effects mean the same thing and are used interchangeably, which is incorrect. Adverse events are unintended pharmacologic effects that occur when a medication is administered correctly while a side effect is a secondary unwanted effect that occurs due to drug therapy.

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