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: Warfarin-associated bleeding generally is considered deleterious; however, in our patient it unmasked an early stage of colon cancer and thus may have saved the patient's life.

SOLUTION: adverse drug event

PROBLEM: The development of nephrotic-range proteinuria after renal transplantation is an unfavourable prognostic factor for graft survival.

SOLUTION: non-adverse drug event

PROBLEM: RESULTS: In one patient the rifampin-impregnated shunt system was implanted after external drainage to prevent further infection.

SOLUTION:
non-adverse drug event