TASK DEFINITION: Adverse drug reactions are appreciably harmful or unpleasant reactions resulting from an intervention related to the use of medical products, which predicts hazard from future administration and warrants prevention or specific treatment, or alteration of the dosage regimen, or withdrawal of the product. Given medical case reports extracted from MEDLINE, the task is to classify whether the case report mentions the presence of any adverse drug reaction. Classify your answers into non-adverse drug event and adverse drug event.
PROBLEM: We herein described an additional patient with BCR-ABL (ela2) positive acute lymphoblastic leukemia who developed tumor lysis syndrome after 10-day treatment with imatinib.

SOLUTION: adverse drug event

PROBLEM: Many new serotonergic antidepressants have been introduced over the past decade.

SOLUTION: non-adverse drug event

PROBLEM: CONCLUSION: Although a definite association has not been proven, clinicians should be aware of the possibility of agranulocytosis while using quetiapine.

SOLUTION:
adverse drug event