instruction:
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.
question:
Recent efforts have focused on heightened surveillance to detect contamination before transfusion to limit recipient morbidity and mortality.
answer:
non-adverse drug event


question:
The polycystic changes disappeared from the ovaries in 2 of the women after valproate therapy was discontinued, and the 2 women who had gained weight and developed amenorrhea while being treated with valproate lost weight and resumed menstruating after the change in medication.
answer:
adverse drug event


question:
We report a case of acute generalized exanthematous pustulosis (AGEP) induced by salazosulfapyridine in a patient with ulcerative colitis.
answer:

adverse drug event