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: Bortezomib-induced paralytic ileus is a potential gastrointestinal side effect of this first-in-class anticancer proteasome inhibitor.
Example Output: adverse drug event

Example Input: We studied 13 healthy volunteer subjects, performing three hepatobiliary scans in each one.
Example Output: non-adverse drug event

Example Input: Possible interaction between lopinavir/ritonavir and valproic Acid exacerbates bipolar disorder.
Example Output:
adverse drug event