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:
Exacerbation of anthracycline-induced early chronic cardiomyopathy with ATRA: role of B-type natriuretic peptide as an indicator of cardiac dysfunction.
answer:
adverse drug event


question:
A 26-year-old Japanese man, who had been receiving medical attention for ulcerative colitis for one year, presented with diffuse erythema and pustules on his face and trunk, malaise, and fever up to 39 degrees C one day after the administration of salazosulfapyridine.
answer:
adverse drug event


question:
RESULTS: The study patients were observed up to 4 years, and none of them reported any problems.
answer:

non-adverse drug event