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:
We report a case of an 11-year-old boy who experienced an anaphylactic reaction after administration of bacitracin ointment.
answer:
adverse drug event


question:
Carbamazepine hypersensitivity syndrome is a rare, life-threatening condition.
answer:
adverse drug event


question:
CLINICAL FEATURES: A 74-yr-old, 51-kg woman with a history of hypertension controlled with 5 mg.day-1 enalapril and 50 mg.day-1 atenolol was admitted for evaluation of low back pain, loss of appetite, and weight loss.
answer:

non-adverse drug event