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.

Example Input: Two patients with extrinsic asthma and coexistent insulin-dependent diabetes mellitus sustained an anaphylactoid reaction after the intravenous administration of 50% solution of dextrose.
Example Output: adverse drug event

Example Input: For 9 years the patient remained totally asymptomatic.
Example Output: non-adverse drug event

Example Input: 5-fluorouracil (5-FU)-associated peripheral neuropathy is an uncommon event.
Example Output:
adverse drug event