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:
The patient began her prescribed radiation therapy and 5-fluorouracil radio-sensitizing chemotherapy.
answer:
non-adverse drug event


question:
Destructive thyrotoxicosis appeared 4-6 months after starting IFN-alpha, followed by Graves' hyperthyroidism within 8 to 11 months.
answer:
adverse drug event


question:
Successful treatment with partial resection of the posterior mitral valve leaflet and antibiotic therapy with cefazolin.
answer:

non-adverse drug event