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: The other ten were given Adriamycin without this compression.
Example Output: non-adverse drug event

Example Input: Hypersensitivity reactions involving the kidneys can occur with any of the penicillin groups.
Example Output: non-adverse drug event

Example Input: Nitric oxide, a potent smooth muscle relaxant, has been shown to be involved in the initiation and maintenance of erections; future research involving specific inhibitors of this chemical is indicated for the possible treatment of intraoperative penile erections.
Example Output:
non-adverse drug event